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Data Addendum
June 15, 1998
Version 1.1
Host-Based Controller Modem AT Command Set
Contents
Page
AT Command Summary ........................................2
AT Commands Reference .....................................6
Test and Debug AT Commands ..........................24
AT Commands Reference S-Registers ...............29
AT FAX Command Set (Class 1 FAX)..................36
AT FAX Commands Reference............................37
AT Voice Command Set.......................................42
AT Voice Commands Reference .........................43
AT COMMANDS: SPEAKERPHONE OPERATION .........45
AT COMMANDS: TELEPHONE ANSWERING DEVICE ...45
AT VOICE COMMAND SET NOT DEFINED IN IS-101
SPECIFICATIONS ...................................................48
VOICE MODEM COMMAND EXAMPLES .....................49
AT DSVD Commands...........................................56
V.25ter AT Commands.........................................57
V.80 AT Commands .............................................59
AT Commands for Homologation Testing and
Debugging............................................................61
CONFIGURING FOR DIFFERENT COUNTRIES .............63
COUNTRY SPECIFIC HOMOLOGATION PARAMETERS .69
COUNTRY SPECIFIC S REGISTER DEFAULTS............84
CHANGING THE DTMF DIAL SPEED DEFAULT VALUE 86
Introduction
This document specifies the Lucent Technologies
MTC AT Command Set for the host-based controller
modem products. Note that if a particular modem
board does not support a feature (such as voice),
then the corresponding commands are disabled for
that modem.
Host-Based Controller Modem
AT Command Set
1998
Data Addendum
June 15,
AT Command Summary
The following tables summarize the commands implemented by the modem. Commands may be executed when
the modem is in COMMAND mode. COMMAND mode is entered upon under one of the following conditions:
✟ After power up
✟
At the termination of a connection
✟
After the execution of a command other than dial or answer commands (ATO or AT&T)
✟
Upon the receipt of the ESCAPE SEQUENCE (three consecutive characters matching the contents of
S register 2) while on-line mode
✟
Upon the on-to-off transition of DTR if &D1, &D2, or &D3 has been set
Table 1. AT Command Set Summary
Command
A/
A
B
C
D
E
F
H
I
L
M
N
O
P
Q
T
V
W
X
Y
Z
&B
&C
&D
&F
&G
2
Description
Repeat last command
Answer command
Communication standard setting
Carrier control
Dial command
Echo command
On-line data character echo command
Hook control
Request ID information
Monitor speaker volume
Monitor speaker mode
Modulation handshake
Return to on-line data mode
Select pulse dialing
Result code control
Select tone dialing
DCE response format
Result code option
Result code selection and call progress
monitoring
Long-space disconnect
Reset and recall stored profile
V.32 auto retrain
Data carrier detect (DCD) control
Data terminal ready (DTR)
Local factory settings
V.22bis guard tone control
Version 1.0
Command
&J
&K
&M
&Q
&S
&T
&V
&W
&Y
&Z
\A
\B
\G
\J
\K
\N
\Q
\R
\T
\V
\X
%B
%C
%E
-C
-V90
Description
Auxiliary relay options
Local flow control selection
Asynchronous communications mode
Asynchronous communications mode
Data set ready (DSR) option
Self-test commands
View the active configuration
Store current configuration
Select stored profile for hard reset
Store telephone number
MNP block size
Send break
Modem port flow control
Adjust bits/s rate control
Set break control
Error control mode selection
Local flow control selection
Ring indicator off after answer
Inactivity timer
Protocol result code
XON/XOFF pass through
View numbers in blacklist
Data compression control
Automatic rate change
Data calling tone
Enable/disable V.90 settings
Lucent Technologies Inc.
Data Addendum
June 15, 1998
AT Command Summary (continued)
Host-Based Controller Modem
AT Command Set
Table 2. AT Testing and Debugging Command Set Summary
Command
&&C
&&L
&&R
&&S
Description
Write to/read from host interface
Line-to-line loopback
Write to/read from DSP RAM location
Speaker codec loopback
Command
%T94
%T124
%T125
#UD
Description
Test external DSP RAM
Return to on-chip DSP RAM
Load K56flex image to external DSP RAM
Unimodem diagnostics
Table 3. The S-Register Summary
Register
S0
S1
S2
S3
S4
S5
S6
S7
S8
S10
S11
S12
S14
S21
S22
S24
S28
S30
S32
S33
S35
S36
S37
S38
S42*
S43*
S48
S89
S90
S91
S108
Default
0
0
43
13
10
8
2
50
2
20
95
50
8
48
112
10
1
0
16
0
0
7
0
1
1
1
7
10
10
15
7
Description
Automatic answer ring number
Ring counter
AT escape character
Command line termination character
Response formatting character
Command line editing character
Wait before dialing
Connection completion time-out
Comma dial modifier time
Automatic disconnect delay
DTMF dialing speed
Escape guard time
General bit-mapped options status
V.24 bit-mapped options status
Results bit-mapped options status
Timer to control sleep mode
V.34 modulation enable/disable
Inactivity timer
Synthetic ring volume
Synthetic ring frequency
Data calling tone
Negotiation fallback
Dial line rate
Enable/disable K56flex settings
Auto rate
Auto mode
LAPM error control and feature negotiation
Timer to control sleep mode
Local phone status
Line transmit level
Network codec type
* S-registers 42, and 43 are for test and debugging purposes only.
Version 1.0
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3
Host-Based Controller Modem
AT Command Set
1998
AT Command Summary (continued)
Data Addendum
June 15,
Table 4. The Result Code Summary
4
Result Code
OK
CONNECT
RING
NO CARRIER
Numeric
0
1
2
3
ERROR
CONNECT 1200 EC*
NO DIALTONE
BUSY
NO ANSWER
CONNECT 2400 EC*
CONNECT 4800 EC*
CONNECT 9600 EC*
CONNECT 14400 EC*
CONNECT 19200 EC*
CONNECT 7200 EC*
CONNECT 12000 EC*
CONNECT 16800 EC*
CONNECT 300 EC*
CONNECT 21600 EC*
CONNECT 24000 EC*
CONNECT 26400 EC*
CONNECT 28800 EC*
CONNECT 31200 EC*
CONNECT 33600 EC*
CONNECT 38400 EC*
CONNECT 57600 EC*
CONNECT 115200 EC*
DELAYED
BLACKLISTED
BLACKLIST FULL
CONNECT 32000 EC*
CONNECT 34000 EC*
CONNECT 36000 EC*
CONNECT 38000 EC*
CONNECT 40000 EC*
CONNECT 42000 EC*
CONNECT 44000 EC*
CONNECT 46000 EC*
CONNECT 48000 EC*
CONNECT 50000 EC*
CONNECT 52000 EC*
CONNECT 54000 EC*
CONNECT 56000 EC*
CONNECT 28000 EC*
4
5
6
7
8
10
11
12
13
14
24
25
86
40
55
56
57
58
59
60
28
18
87
88
89
90
70
71
72
73
74
75
76
77
78
79
80
81
82
100
Description
Command executed
Modem connected to line
A ring signal has been detected
Modem lost carrier signal, or does not detect carrier signal, or does
not detect answer tone
Invalid command
Connection at 1200 bit/s
No dial tone detected
Busy signal detected
Remote end never answered
Connection at 2400 bit/s
Connection at 4800 bit/s
Connection at 9600 bit/s
Connection at 14400 bit/s
Connection at 19200 bit/s
Connection at 7200 bit/s
Connection at 12000 bit/s
Connection at 16800 bit/s
Connection at 300 bit/s
Connection at 21600 bit/s
Connection at 24000 bit/s
Connection at 26400 bit/s
Connection at 28800 bit/s
Connection at 31200 bit/s
Connection at 33600 bit/s
Connection at 38400 bit/s (DTE rate)
Connection at 57600 bit/s (DTE rate)
Connection at 115200 bit/s (DTE rate)
Delay is in effect for the dialed number
Dialed number is blacklisted
Blacklist is full
Connection at 32000 bit/s (K56flex mode) or V.90
Connection at 34000 bit/s (K56flex mode)
Connection at 36000 bit/s (K56flex mode) or V.90
Connection at 38000 bit/s (K56flex mode)
Connection at 40000 bit/s (K56flex mode) or V.90
Connection at 42000 bit/s (K56flex mode)
Connection at 44000 bit/s (K56flex mode) or V.90
Connection at 46000 bit/s (K56flex mode)
Connection at 48000 bit/s (K56flex mode) or V.90
Connection at 50000 bit/s (K56flex mode)
Connection at 52000 bit/s (K56flex mode) or V.90
Connection at 54000 bit/s (K56flex mode)
Connection at 56000 bit/s (K56flex mode)
Connection at 28000 bit/s (V.90 mode)
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Summary (continued)
Result Code
CONNECT 29333 EC*
CONNECT 30666 EC*
CONNECT 33333 EC*
CONNECT 34666 EC*
CONNECT 37333 EC*
CONNECT 38666 EC*
CONNECT 41333 EC*
CONNECT 42666 EC*
CONNECT 45333 EC*
CONNECT 46666 EC*
CONNECT 49333 EC*
CONNECT 50666 EC*
CONNECT 53333 EC*
CONNECT 54666 EC*
Numeric
101
102
103
104
105
106
107
108
109
110
111
112
113
114
Host-Based Controller Modem
AT Command Set
Description
Connection at 29333 bit/s (V.90 mode)
Connection at 30666 bit/s (V.90 mode)
Connection at 33333 bit/s (V.90 mode)
Connection at 34666 bit/s (V.90 mode)
Connection at 37333 bit/s (V.90 mode)
Connection at 38666 bit/s (V.90 mode)
Connection at 41333 bit/s (V.90 mode)
Connection at 42666 bit/s (V.90 mode)
Connection at 45333 bit/s (V.90 mode)
Connection at 46666 bit/s (V.90 mode)
Connection at 49333 bit/s (V.90 mode)
Connection at 50666 bit/s (V.90 mode)
Connection at 53333 bit/s (V.90 mode)
Connection at 54666 bits/s (V.90 mode)
* EC only appears when the extended result codes configuration option is enabled. EC is replaced by one of the following symbols,
depending upon the error control method used:
V42bis—V.42 error control and V.42bis data compression.
V42—V.42 error control only.
MNP 5—MNP class 4 error control and MNP class 5 data compression.
MNP 4—MNP class 4 error control only.
NoEC—No error control protocol.
Version 1.0
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5
Host-Based Controller Modem
AT Command Set
1998
Data Addendum
June 15,
AT Commands Reference
AT commands are issued to the modem to control the modem's operation and software configuration. AT
commands can only be entered while the modem is in command mode. The format for entering AT commands is:
TYPE:
ATXn
where X is the AT command and n is the specific value for that
command.
PRESS:
Enter
If n is omitted from a command that takes a parameter valu, the
value 0 I(zero)
is assumed.
Any command issued is acknowledged with a response in either text or numeric values known as result codes.
Table 2 lists all the valid result codes.
In the following listing, all commands and command-values accepted by the modem are shown; any entries other
than those shown cause the ERROR result code.
+++ Escape sequence
The escape sequence allows the modem to exit data mode and enter on-line command mode. While in on-line
command mode, you may communicate directly to your modem using AT commands. Once you are finished, you
may return to data mode using the ATO command.
A pause, the length which is set by the Escape Guard Time (S12), must be used before and after an escape
sequence is issued. This pause prevents the modem from interpreting the escape sequence as data.
The value of the escape sequence character may be changed using Register S2.
A/
Repeat Last Command
This command repeats the last command string entered. Do not precede this command with an AT prefix or
conclude it by pressing Enter.
A
Answer Command
This command instructs the modem to go off-hook and answer an incoming call.
Bn
Communication Standard Setting
This command determines CCITT vs. Bell standard.
B0:
Selects CCITT V.22 mode when the modem is at 1200 bits/s.
B1:
Selects Bell 212A when the modem is at 1200 bits/s (default).
B2:
Unselects V23 reverse channel (same as B3 ).
B3:
Unselects V23 reverse channel (same as B2 ).
B15:
Selects V.21 when the modem is at 300 bits/s.
B16:
Selects Bell 103J when the modem is at 300 bits/s (default).
Result Codes:
OK
n = 0, 1, 2, 3, 15, 16
ERROR
Otherwise
Cn
Carrier Control
The modem will accept the C1 command without error in order to assure backward compatibility with
communications software that issues the C1 command. However, this modem does not support the C0
command. The C0 command may instruct some other modems not to send carrier (i.e., it puts them in a receiveonly mode).
C0:
Transmit carrier always off.
C1:
Normal transmit carrier switching.
Result Codes:
OK
ERROR
6
n=1
Otherwise
Version 1.0
Lucent Technologies Inc.
Data Addendum
June 15, 1998
AT Command Reference (continued)
Dn
Host-Based Controller Modem
AT Command Set
Dial
This command instructs the modem to begin the dialing sequence. The dial string (n, including modifiers and the
telephone number) is entered after the ATD command.
A dial string can be up to 60 characters long. Any digit or symbol (09, *, #, A, B, C, D) may be dialed as touchtone digits. Characters such as spaces, hyphens, and parentheses do not countthey are ignored by the
modem and may be included in the dial string to enhance readability.
The following may be used as dial string modifiers:
L
Redials last number. Should be the first character following ATD, ignored otherwise.
P
Pulse dialing.
T
Touch-tone dialing (default).
,
Pause during dialing. Pause for time specified in Register S8 before processing the next
character
in the dial string.
W
Wait for dial tone. Modem waits for a second dial tone before processing the dial string.
V
The modem switches to speakerphone mode and dials the number. An ATH command may be
used to
disconnect the voice call.
@
Wait for quiet answer. Wait for five seconds of silence after dialing the number. If silence is not
detected, the modem sends a NO ANSWER result code back to the user.
!
Hook flash. Causes the modem to go on-hook for 0.5 seconds and then return to off-hook.
;
Return to command mode. Causes the modem to return to command mode after dialing the
number,
without disconnecting the call.
^
Disable data calling tone transmission.
S=n Dial a telephone number previously stored using the &Zn=x command (see the &Zn=x command for
further information). The range of n is 0—3.
$
Bong tone detection
En
Echo Command
This command controls whether or not the characters entered from your computer keyboard are echoed back to
your monitor while the modem is in command mode.
E0:
Disables echo to the computer.
E1:
Enables echo to the computer (default).
Result Codes:
OK
ERROR
Fn
n = 0, 1
Otherwise
Online Data Character Echo Command
This command determines if the modem will echo data from the DTE. This modem does not support the F0
version of the command. However, the modem will accept F1, which may be issued by older communication
software, to assure backward compatibility.
F0:
Online data character echo enabled (NOT SUPPORTED).
F1:
Online character echo disabled.
Result Codes:
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Lucent Technologies Inc.
7
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
OK
Data Addendum
June 15, 1998
n=1
ERROR
Hn
Otherwise
Hook Control
This command instructs the modem to go on-hook to disconnect a call, or off-hook to make the phone line busy.
H0:
Modem goes on-hook (default).
H1:
Modem goes off-hook.
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
In
Request ID Information
This command displays specific product information about the modem.
I0:
Returns modem identity string and driver version number, same as I3.
I1:
Calculates ROM checksum and displays it on the DTE.
I2:
Performs a ROM check and calculates and verifies the checksum displaying OK or
ERROR.
I3:
Returns modem identity string and driver version number, same as I0.
I4:
Returns firmware version for data pump.
I5:
Returns the board/firmware ID and country ID in hexadecimal (for Apollo).
Returns the code ver, board ID, country ID and subsystem vendor ID in hexadecimal (for
MARS).
I6-8:
Returns OK for compatibility.
I9:
Returns country ID in English.
I11:
Displays connection information as described in the following example.
Result Codes:
As described
ERROR
8
n = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11
Otherwise
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
Host-Based Controller Modem
AT Command Set
The ATI11 result has two pages; the user must hit a key to get the second page. See the following example:
ati11
Description
K56flex connection
V.90 Connection
---------------------------------------------1 Last Connection
56K
V.90
2 Initial Transmit Carrier Rate
28800
28800
3 Initial Receive Carrier Rate
50000
49333
4 Final Transmit Carrier Rate
28800
28800
5 Final Receive Carrier Rate
50000
49333
6 Protocol Negotiation Result
LAPM
LAPM
7 Data Compression Result
V42bis
V42bis
8 Estimated Noise Level
152
152
9 Receive Signal Power Level (-dBm) 25
25
10 Transmit Signal Power Level (-dBm) 16
16
11 Round Trip Delay
(msec) 4
4
Press any key to continue; ESC to quit.
12
13
14
15
16
17
18
19
20
21
22
23
Near Echo Level
(-dBm)
Far Echo Level
(-dBm)
Transmit Frame Count
Transmit Frame Error Count
Receive Frame Count
Receive Frame Error Count
Retrain by Local Modem
Retrain by Remote Modem
Call Termination Cause
Robbed-Bit Signaling
Digital Loss
(dB)
Remote Server ID
NA
NA
3
0
0
0
0
0
0
00
6
4342C3
NA
NA
3
0
0
0
0
0
0
00
6
NA
OK
The ATI11 command may be issued from on-line command mode or after the end of a call. After a call, some of
the values are no longer valid; it's useful to know which ones.
Each of the line items in the ATI11 result is explained next:
1. V.90, 56K, V.34, or V.32 depending on the type of connection negotiated.
2. Initial upstream rate
3. Initial downstream rate
4. Current or final upstream rate
5. Current or final downstream rate
6. LAPM or MNP or None, depending on V.42 negotiation
7. V42bis or MNP or None, depending on V.42 negotiation
8. Mean-square error of received downstream signal. Difference between received constellation point and
reference decision point. This is a dimensionless decimal number, only valid during a call. Higher numbers
are worse. There's no absolute threshold of goodness; it depends on the downstream data rate. The number
varies during a call, so it can be useful to sample it a few times.
9. The received signal power, although labeled -dBm, is only a relative measure for comparing calls to/from
different locations. Only valid during a call.
10. Upstream transmit signal power.
11. Round-trip delay in milliseconds.
12. Echo levels are valid for V.34 only.
13. Echo levels are valid for V.34 only.
14. Number of LAPM frames sent upstream during this call. Count wraps around at 65535.
15. Number of REJ frames received at the analog client modem.
16. Number of LAPM frames received by client during this call. Count wraps around at 65535.
17. Number of frames received in error by the client.
18. Number of retrains or rate renegotiations requested by this modem.
19. Number of retrains or rate renegotiations requested by remote modem.
Version 1.0
Lucent Technologies Inc.
9
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
Data Addendum
June 15, 1998
20. Reason for call ending, only valid after call ends:
0 = Local modem command: ATH, DTR drop
1 = Remote modem: cleardown, loss of signal
2 = No answer, busy, etc.
3 = Training failure V.90, K56flex or V.34.
4 = Protocol failure if required by \N4, for example.
21. For PCM connection only, a hexadecimal 6-bit pattern of T1 frames with robbed-bit signaling.
22. For PCM connection only, the downstream digital loss.
23. For K56flex connection only, the V.8bis info sent by the server. Meaning is defined at the server and by
convention. Example above is from a recent Ascend MAX in µ-Law.
Ln
Monitor Speaker Volume
This command sets speaker volume to low, medium, or high.
L0:
Selects low volume.
L1:
Selects low volume.
L2:
Selects medium volume (default).
L3:
Selects high volume.
Result Codes:
OK
n = 0, 1, 2, 3
ERROR
Otherwise
Mn
Monitor Speaker Mode
This command turns the speaker on or off.
M0:
The speaker is off.
M1:
The speaker is on until the modem detects the carrier signal (default).
M2:
The speaker is always on when modem is off-hook.
M3:
The speaker is on until the carrier is detected, except while dialing.
Result Codes:
OK
n = 0, 1, 2, 3
ERROR
Nn
Otherwise
Modulation Handshake
This command controls whether or not the local modem performs a negotiated handshake at connection time with
the remote modem when the communication speed of the two modems is different.
N0:
When originating or answering, this is for handshake only at the communication standard specified by
S37 and the ATB command.
N1:
When originating or answering, begin the handshake only at the communication standard specified by
S37 and the ATB command. During handshake, fallback to a lower speed may occur (default).
Result Codes:
OK
ERROR
10
n = 0, 1
Otherwise
Lucent Technologies Inc.
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Data Addendum
June 15, 1998
AT Command Reference (continued)
On
Host-Based Controller Modem
AT Command Set
Return On-line to Data Mode
O0:
O1:
O3:
Instructs the modem to exit on-line command mode and return to data mode
(see AT Escape Sequence, +++).
This command issues a retrain before returning to on-line data mode.
This command issues a rate renegotiation before returning to on-line data mode.
Result Codes:
P
OK
n = 0, 1, 3
ERROR
Otherwise
Select Pulse Dialing
This command configures the modem for pulse (non touch-tone) dialing. Dialed digits are pulsed until a T
command or dial modifier is received. Tone dial is the default setting.
Qn
Result Code Control
Result codes are informational messages sent from the modem and displayed on your monitor. Basic result
codes are OK, CONNECT, RING, NO CARRIER, and ERROR. The ATQ command allows the user to turn result
codes on or off.
Q0:
Enables modem to send result codes to the computer (default).
Q1:
Disables modem from sending result codes to the computer.
Result Codes:
OK
n = 0, 1
ERROR
T
Otherwise
Select Tone Dialing
This command instructs the modem to send DTMF tones while dialing. Dialed digits are tone dialed until a P
command or dial modifier is received. This is the default setting.
Vn
DCE Response Format
This command controls whether result codes (including call progress and negotiation progress messages) are
displayed as words or their numeric equivalents. For the result code, see table 4.
V0:
Displays result codes as digits.
V1:
Displays result codes as text (default).
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
Result Code Format
Version 1.0
ATV0
<numeric code> <CR>
ATV1
<CR> <LF>
<verbose code> <CR> <LF>
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Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
Data Addendum
June 15, 1998
Wn
Result Code Option
W0:
W1:
W2:
Result Codes:
OK
ERROR
CONNECT result code reports DTE receive speed. Disable protocol result codes.
CONNECT result code reports DTE receive speed. Enable protocol result codes.
CONNECT result code reports DCE receive speed. Enable protocol result codes (default).
Xn
Result Code Selection and Call Progress Monitoring
n = 0, 1, 2
Otherwise
This command enables tone detection options used in the dialing process. As these functions are chosen, the
modem chip set’s result codes are also affected. Therefore, this command is frequently used to control the
modem chip set’s responses. The primary function of this control is to control the modem chip set’s call response
capabilities.
X0
X1
X2
X3
X4
X5
X6
X7
Ext. Result Code
Disable
Enable
Enable
Enable
Enable
Enable
Enable
Disable
Dial Tone Detect
Disable
Disable
Enable
Disable
Enable
Enable
Enable
Enable
Busy Tone Detect
Disable
Disable
Disable
Enable
Enable (default)
Enable
Enable
Enable
Extended Result Codes
Disabled:
Enabled:
Displays only the basic result codes OK, CONNECT, RING, NO CARRIER, and ERROR.
Displays basic result codes, along with the connect message and the modem's date rate,
and an indication of the modem's error correction and data compression operation.
Dial Tone Detect
Disabled:
Enabled:
The modem dials a call regardless of whether it detects a dial tone. The period of time
the modem waits before dialing is specified in register S6.
The modem dials only upon detection of a dial tone, and disconnects the call if the dial
tone is not detected within 10 seconds.
Busy Tone Detect
Disabled:
Enabled:
The modem ignores any busy tones it receives.
The modem monitors for busy tones.
Result Codes:
OK
ERROR
12
n = 0, 1, 2, 3, 4, 5, 6, 7
Otherwise
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
Host-Based Controller Modem
AT Command Set
Yn
Long Space Disconnect
Long space disconnect is always disabled.
Y0:
Disable long space disconnect (default).
Y1:
Enable long space disconnect (NOT SUPPORTED).
Result Codes:
OK
n=0
ERROR
Otherwise
Zn
Recall Stored Profile
This command instructs the modem chip set to go on-hook and restore the profile saved by the last &W
command. Either Z0 or Z1 restores the same single profile.
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
&Bn
V.32 Auto Retrain
This modem always auto retrains.
&B0: Disable V.32 auto retrain (NOT SUPPORTED).
&B1: Enable V.32 auto retrain (default).
Result Codes:
OK
n=1
ERROR
Otherwise
&Cn
Data Carrier Detect (DCD) Control
Data Carrier Detect is a signal from the modem to your computer indicating that the carrier signal is being
received from a remote modem. DCD normally turns off when the modem no longer detects the carrier signal.
&C0: The state of the carrier from the remote modem is ignored. DCD circuit is always on.
&C1: DCD turns on when the remote modem's carrier signal is detected, and off when the carrier signal
is not detected (default).
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
Version 1.0
Lucent Technologies Inc.
13
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
&Dn
Data Addendum
June 15, 1998
DTR Control
This command interprets how the modem responds to the state of the DTR signal and changes to the DTR signal.
&D0: Ignore. The modem ignores the true status of DTR and treats it as always on. This should only
be
used if your computer does not provide DTR to the modem.
&D1: If the DTR signal is not detected while in on-line data mode, the modem enters command mode,
issues OK result code, and remains connected.
&D2: If the DTR signal is not detected while in on-line data mode, the modem disconnects (default).
&D3: Reset modem on the on-to-off DTR transition.
Result Codes:
OK
n = 0, 1, 2, 3
ERROR
Otherwise
&Fn
Load Factory Settings
This command loads the configuration stored and programmed at the factory. This operation replaces all of the
command options and the S-register settings in the active configuration with factory default values.
Note: In voice mode (AT+FCLASS=8), if the AT&F command is placed on the same line as other commands, the
command line is ignored. To load factory settings in voice mode, issue AT&F by itself.
Result Codes:
OK
n=0
ERROR
Otherwise
&Gn
V.22bis Guard Tone Control
This command determines which guard tone, if any, to transmit while transmitting in the high band (answer
mode). This command is only used in V.22 and V.22bis mode. This option is not used in North America and is for
international use only.
&G0: Guard tone disabled (default).
&G1: Sets guard tone to 550 Hz.
&G2: Sets guard tone to 1800 Hz.
Result Codes:
OK
n = 0, 1, 2
ERROR
Otherwise
&Jn
Auxiliary Relay option
&J0:
&J1:
Result Codes:
OK
ERROR
14
The auxiliary relay is never closed. (Default)
NOT SUPPORTED
n=0
Otherwise
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
&Kn
Host-Based Controller Modem
AT Command Set
Local Flow Control Selection
&K0: Disable flow control
&K1: Reserved
&K2: Reserved
&K3: Enable RTS/CTS (hardware) flow control (default)
&K4: Enable XON/XOFF flow control
Result Codes:
OK
n = 0, 3, 4
ERROR
Otherwise
&Mn
&M0:
&M1:
&M2:
&M3:
&M4:
Asynchronous Communications Mode
Asynchronous mode (default).
Reserved
Reserved
Reserved
Reserved
Result Codes:
OK
ERROR
&Pn
n=0
Otherwise
Pulse Dial Make-to-Break Ratio Selection
This Command is effective only for Japan.
&P0
39/61 make/break ratio, 10PPS
&P1
33/67 make/break ratio, 10PPS (default)
&P2
33/67 make/break ratio, 20PPS
Result Codes:
OK
ERROR
n = 0, 1, 2
Otherwise
&Qn Asynchronous Communications Mode
&Q0:
&Q5:
&Q6:
&Q8:
&Q9:
Result Codes:
OK
ERROR
Version 1.0
Asynchronous Mode, buffered. Same as \N0.
Error Control Mode, buffered (default). Same as \N3.
Asynchronous Mode, buffered. Same as \N0.
MNP error control mode. If an MNP error control protocol is not established, the modem will
fallback according to the current user setting in S36.
V.42 or MNP error control mode. If neither error control protocol is established, the modem will
fallback according to the current user setting in S36.
n = 0, 5, 6, 8, 9
Otherwise
Lucent Technologies Inc.
15
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
&Sn
Data Addendum
June 15, 1998
Data Set Ready (DSR) Option
This command selects DSR action.
&S0:
DSR always ON (default).
&S1:
DSR comes on when establishing a connection and goes off when the connection ends.
Result Codes:
OK
ERROR
&Tn
n = 0, 1
Otherwise
Self-Test Commands
This command allows the user to perform diagnostic tests on the modem. These tests can help to isolate
problems when experiencing periodic data loss or random errors.
&T0
Abort. Stops any test in progress.
&T1
Local analog loop. This test verifies modem operation, as well as the connection
between the modem and computer. Any data entered at the local DTE is modulated, then
demodulated, and returned to the local DTE. To work properly, the modem must be off-line.
&T3 Local digital loopback test.
&T6 Remote digital loopback test. This test can verify the integrity of the local modem, the communications
link, and the remote modem. Any data entered at the local DTE is sent to, and returned from, the
remote modem. To work properly, the modems must be on-line with error control disabled.
Result Codes:
OK
n=0
CONNECT
n = 1, 3, 6
ERROR
Otherwise
16
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
&V
Host-Based Controller Modem
AT Command Set
View Active Configuration and Stored Profile
This command is used to display the active profiles.
For example:
Option
Selection
AT Cmd
Bell
Enabled
Medium
OnUntilCarrier
Enabled
Tone
Text
Enabled
Enabled
Enabled
Standard RS232
Standard RS232
B
E
L
M
Q
T/P
V
X
X
X
&C
&D
Option
Selection
AT Cmd
V22b Guard Tone
Flow Control
Error Control Mode
Data Compression
AutoAnswerRing#
AT Escape Char
CarriageReturnChar
Linefeed Char
Backspace Char
Blind Dial Pause
NoAnswer Timeout
“ , “ Pause Time
Disabled
Hardware
V42, MNP, Buffer
Enabled
0
43
13
10
8
2 sec
50 sec
2 sec
&G
&K
\N
%C
S0
S2
S3
S4
S5
S6
S7
S8
Selection
AT Cmd
2000 msec
95 msec
1000 msec
Disabled
33600
Disabled
S10
S11
S12
S35
S37
-SSE
Comm Standard
CommandCharEcho
Speaker Volume
Speaker Control
Result Codes
Dialer Type
ResultCode Form
ExtendResultCode
Dial Tone Detect
Busy Tone Detect
LSD Action
DTR Action
Press any key to continue; ESC to quit.
Press any key to continue; ESC to quit.
Option
No Carrier Disc
DTMF Dial Speed
Escape GuardTime
Data Calling Tone
Line Rate
DSVD mode
Stored Phone Numbers
&Z0=
&Z1=
&Z2=
&Z3=
OK
Version 1.0
Lucent Technologies Inc.
17
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
Data Addendum
June 15, 1998
&Wn
Store Current Configuration
This command stores certain command options and S-register values except S3, S4, and S5. The ATZ command
or a power-up reset of the modem restores this profile.
Result Codes:
OK
n=0
ERROR
Otherwise
&Yn
Select Stored Profile for Hard Reset
This command does not change the behavior of the modem but is included for compatibility with applications that
issue the &Y0 command
&Y0:
Select stored profile 0 on power-up
&Y1:
ERROR
Result Codes:
OK
ERROR
&Zn=x
n=0
Otherwise
Store Telephone Number
This command is used to store up to four dialing strings for later dialing. The format for the command is &Zn =
”stored number” where n is the location 0—3 to which the number should be written. The dial string may contain
up to 40 characters. The ATDS = n command dials using the string stored in location n.
Result Codes:
OK
n = 0, 1, 2, 3
ERROR
Otherwise
\An
Select Maximum MNP Block Size
The modem will operate an MNP error corrected link using a maximum block size controlled by the parameter
supplied.
\A0:
64 characters.
\A1:
128 characters.
\A2:
192 characters.
\A3:
256 characters (default).
Result Codes:
OK
n = 0, 1, 2, 3
ERROR
Otherwise
\Bn
Transmit Break to Remote
In non-error-control mode, the modem will transmit a break signal to the remote modem with a length in multiples
of 100ms according to parameter specified. The command works in conjunction with the \K command.
\B1 - \B9:
Break length in 100ms units. (Default = 3.) (Non-error-control mode only.)
Result Codes:
OK
If connected in data modem mode.
NO CARRIER
\G
If not connected or connected in fax modem mode.
Modem Port Flow Control
\G0:
\G1:
Result Codes:
OK
ERROR
18
Modem process XON/XOFF flow control characters locally (default).
Modem passes XON/XOFF flow control characters.
n = 0, 1
Otherwise
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
\J
Host-Based Controller Modem
AT Command Set
Bits/s Rate Adjusted
This command determines whether or not the negotiated connect speed of the modem forces the adjustment of
the speed of the DTE to the modem’s speed.
\J0:
Buffer mode. Error control selected (or not) by \Nn command (default).
\J1:
Force the max DCE rate to the DTE rate.
Result Codes:
OK
n = 0 or 1
ERROR
Otherwise
\Kn
Break Control
Controls the response of the modem to a break received from the DTE or the remote modem or the \B command.
The response is different in three separate cases.
The first case is where the modem receives a break from the DTE when the modem is operating in data transfer
mode:
\K0:
Enter on-line command mode, no break sent to the remote modem.
\K1:
Clear data buffers and send break to remote modem.
\K2:
Same as 0.
\K3:
Send break to remote modem immediately.
\K4:
Same as 0.
\K5:
Send break to remote modem in sequence with transmitted data. (Default.)
The second case is where the modem is in the on-line command state (waiting for AT commands) during a data
connection, and the \B is received in order to send a break to the remote modem:
\K0:
Clear data buffers and send break to remote modem.
\K1:
Clear data buffers and send break to remote modem. (Same as 0.)
\K2:
Send break to remote modem immediately.
\K3:
Send break to remote modem immediately. (Same as 2.)
\K4:
Send break to remote modem in sequence with data.
\K5:
Send break to remote modem in sequence with data. (Same as 4.) (Default.)
The third case is where there a break is received from a remote modem during a connection:
\K0:
Clear data buffers and send break to the DTE.
\K1:
Clear data buffers and send break to the DTE. (Same as 0.)
\K2:
Send a break immediately to DTE.
\K3:
Send a break immediately to DTE. (Same as 2.)
\K4:
Send a break in sequence with received data to DTE.
\K5:
Send a break in sequence with received data to DTE. (Same as 4.) (Default.)
Result Codes:
OK
ERROR
\Nn
n = 0,1, 2, 3, 4, 5
Otherwise
Error Control Mode Selection
This command determines the type of error control used by the modem when sending or receiving data.
\N0:
Buffer mode. No error control (same as &Q6).
\N1:
Direct mode.
\N2:
MNP* or disconnect mode. The modem attempts to connect using MNP 24 error control
procedures. If this fails, the modem disconnects. This is also known as MNP reliable
mode.
Version 1.0
Lucent Technologies Inc.
19
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
Data Addendum
June 15, 1998
\N3:
V.42, MNP, or buffer (default).
The modem attempts to connect in V.42 error control mode. If this fails, the modem attempts to
connect in MNP mode. If this fails, the modem connects in buffer mode and continues
operation. This
is also known as V.42/MNP auto reliable mode (same as &Q5).
\N4:
V.42 or disconnect. The modem attempts to connect in V.42 error control mode. If this fails, the
call
will be disconnected.
\N5:
V.42. MNP or buffer (same as \N3).
\N7:
V.42. MNP or buffer (same as \N3).
Result Codes:
OK
n = 0, 1, 2, 3, 4,5,7
ERROR
Otherwise
\Q
Local Flow Control Selection
\Q0:
Disable flow control. Same as &K0.
\Q1:
XON/XOFF software flow control. Same as &K4.
\Q2:
CTS-only flow control. This is not supported and the response is ERROR.
\Q3:
RTS/CTS to DTE (default). Same as &K3.
Result Codes:
OK
n = 0, 1, 3
ERROR
Otherwise
\Rn
Ring indicator signal off after the telephone call is answered (Compatibility command)
\R0:
ring indicator signal is off after the telephone call is answered
Result Codes:
OK
n=0
ERROR
Otherwise
20
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
\Tn
Host-Based Controller Modem
AT Command Set
Inactivity Timer
This command specifies the length of time (in minutes) that the modem will wait before disconnecting when no
data is sent or received. A setting of zero disables the timer. Alternatively, this timer may be specified in register
S30. This function is only applicable to buffer mode.
\T0:
Inactivity timer disabled (default).
OK
n = 0 - 255
ERROR
Otherwise
Result Codes:
\Vn
Protocol Result Code
\V0:
Disable protocol result code appended to DCE speed.
\V1:
Enable protocol result code appended to DCE speed (default).
\V2:
Same as \V1.
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
\Xn
XON/XOFF Pass Through
\X0:
\X1
Result Codes:
OK
ERROR
-Cn
Modem process XON/XOFF flow control characters locally (default).
Modem passes XON/XOFF flow control characters.
n = 0, 1
Otherwise
Data Calling Tone
Data Calling Tone is a tone of certain frequency and cadence as specified in V.25 which allows remote
Data/FAX/Voice discrimination. The frequency is 1300 Hz with a cadence of .5 s on and 2 s off.
-C0:
Disabled (default).
-C1:
Enabled.
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
-V90 = <n>
command to enable/disable V.90 and change downstream rate
-V90=0 will disable V.90
-V90=1 will enable V.90 Auto Rate (default value)
-V90=X - controls the downstream rate
-V90? - Shows the current value
-V90=? - Shows the range [0-21]
See next page for the values of n.
Version 1.0
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21
Host-Based Controller Modem
AT Command Set
AT Command Reference (continued)
Data Addendum
June 15, 1998
The table below shows the possible values:
“AT-V90=X”
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
%B
Downstream Rate
V.90 disabled
Auto Rate (default)
28000 kbit/s
29333 kbit/s
30666 kbit/s
32000 kbit/s
33333 kbit/s
34666 kbit/s
36000 kbit/s
37333 kbit/s
38666 kbit/s
40000 kbit/s
41333 kbit/s
42666 kbit/s
44000 kbit/s
45333 kbit/s
46666 kbit/s
48000 kbit/s
49333 kbit/s
50666 kbit/s
52000 kbit/s
53333 kbit/s
View Numbers in Blacklist
If blacklisting is in effect, this command displays the numbers for which the last call attempted in the past two
hours failed. The ERROR result code appears in countries that do not require blacklisting.
22
Lucent Technologies Inc.
Version 1.0
Data Addendum
June 15, 1998
AT Command Reference (continued)
Host-Based Controller Modem
AT Command Set
%Cn Data Compression Control
This command determines the operation of V.42bis and MNP class 5 data compression. Online changes do not
take effect until a disconnect occurs first.
%C0: V.42bis/MNP 5 disabled. No data compression.
%C1: V.42bis/MNP 5 enabled. Data compression enabled (default).
Result Codes:
OK
n = 0, 1
ERROR
Otherwise
%En
Enable/Disable Auto-Retrain and Fallback/Fall Forward
Provides option for the modem to automatically monitor line quality to fall back when line quality is insufficient and
to fall forward when line quality is sufficient.
%E0:
Disable fallback/fall forward
%E1:
Enable fallback, Disable fall forward
%E2:
Enable fallback/fall forward (Default)
Result Codes:
OK
n = 0,1, 2
ERROR
Otherwise
Version 1.0
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23
Host-Based Modem
AT Command Set
1998
Data Addendum
June 15,
Test and Debug AT Commands
The following commands are to be used for testing and debugging only and are not meant for general use.
&&C
Write to / Read from DSP Register
AT&&C<loc>,<val> writes the value <val> to DSP register at location <loc>.
AT&&C<loc> reads from location <loc>.
&&L
Line-to-Line Loopback
This command provides a loopback for line-to-line.
&&R
Write to/Read from DSP RAM Location
AT&&R<loc>,<val> writes the value <val> to DSP RAM location <loc>.
AT&&R<loc> reads from location <loc>.
&&S
Speaker Codec Loopback
This command provides a loopback from the microphone to the speaker.
%T94
Test External RAM
This command “AT%T94” is used for testing the external RAM. If the external RAM is good, this command returns
“PASS”. If the external ram is not good, this command returns “FAIL”.
Example :
AT%T94
PASS
- external ram is good
%T125, %T124
Test DSP 56K Version in External Ram
The command “AT%T125” is used for testing the DSP 56K code version and checksum running in external ram.
After issuing “AT%T125” the user may then issue “ATI4” to get DSP Version or “ATI1” to get the DSP checksum.
(The command “AT%T125” is not valid for ramless version of the DSP 56K code.)
The command “AT%124” is for internal ram version.
#UD
Unimodem Diagnostics
The reference for the #UD command is Microsoft’s Draft Reference Specification rev.0.85. The Lucent
Technologies modem implements a subset of the parameters in that document.
#UD is an action command. It does not take parameters. It shall be the last command in the command line.
The modem logs aspects of its operation for each call, and saves these results (in volatile memory) until cleared
by one of the following events:
1. Power off (or D1 or D3 state entered)
2. Hard reset (e.g. negate DTR with &D3 set, reset button)
3. Soft reset = ATZ or AT&F
4. ATD command issued
5. ATA command issued
6. Automatic answer (e.g. set register S0>0 and ring detected)
These results are NOT cleared by changing DTR, V.24 circuit 108.2, if &D0, &D1 or &D2.
In response to this command, the modem reports one or more lines of information text as defined below.
Information text format is defined in ITU V.25ter: each line is preceded by a <CR><LF> pair, and terminated by
<CR><LF>. (Note: as per V.25ter, CR and LF characters may be changed by writing new values to the contents
of registers S2 and S3 respectively.)
24
Version 1.0
Lucent Technologies Inc.
Data Addendum
June 15, 1998
Test and Debug AT Commands (continued)
Host-Based Controller Modem
AT Command Set
The modem may generate a single line or multiple lines, based on modem capabilities and call results, followed
by a standard OK final result code. For example, if call setup failed, only that result is useful. Each information
text line shall be formatted as follows, including one or more key=value pairs:
DIAG <token key=value [[key=value] [key=value]] …>
DIAG 5 characters, hex: 44, 49, 41, 47, 20
<
left angle bracket (less than sign), hex: 3C
token unique 32-bit hexadecimal string 2A4D3263, hex: 32, 41, 34, 44, 33, 32, 36, 33
space space character, hex 20
key
single hexadecimal numeric digit, see Table 1
=
equal sign, hex: 3D
value any string as defined below (Tables 1-3, etc.)
>
right angle bracket (greater than sign), hex: 3E
Unless otherwise noted, all values are hexadecimal numbers. Any numeric values from tables in ITU V.58 are
converted to hexadecimal. Multi-digit values are reported MSD first. Leading 0’s may be deleted.
The following table1 includes all the items listed in Microsoft’s specification for the AT#UD command. Within these
items, the one that has a check mark in the “Implemented” column is implemented in this release of the modem
product. For an item that has an extra option table, please check the corresponding option table to see exactly
which option has been implemented.
Table 1 - AT#UD Last Call Status Report Format
Key
value(s)
required
0
1
2
3
4
5
6-F
10
2 digits
Table 2
Table 3
Table 4
String
String
yes
0-A
0-1
0
yes
yes
2 digits
11
12
13
2 digits
2 digits
2 digits
Note 42
Note 4
Note 4
Note 4
14
15
16
17
18
19-1F
20
21
22
23
24
25
26
27
28-2F
30
31
32
33
34
35
36-3F
40
2 digits
2 digits
4 digits
2 digits
Table 5
Note 4
Note 4
Note 4
Note 4
Note 4
Table 6
Table 6
4 digits
4 digits
4 digits
4 digits
4 digits
4 digits
Note 6
Note 6
0-1F40
0-1F40
0-FA0
0-FA0
0-FA00
0-FA00
2 digits
2 digits
2 digits
2 digits
4 digits
4 digits
0-FF
0-FF
0-FF
0-FF
0-FA00
0-FA00
Table 7
0-2
Definition
Implemented
Diagnostic Command Specification revision number, digit.digit
Call Setup Result code
Multi-media mode
DTE-DCE interface mode
V.8 CM octet string, same format as V.25ter Annex A, in quotes
V.8 JM octet string, same format as V.25ter Annex A, in quotes
Reserved for call negotiation reports
Received signal power level, in –dBm (0-43)
X
X
Transmit signal power level, in –dBm (0-17)
Estimated noise level, in –dBm (10-90)
Normalized Mean Squared error, 100 (0x64) = minimum inter-symbol
distance
Near echo loss, in units of dB
Far echo loss, in units of dB
Far echo delay, in units of ms
Round Trip delay, in units of ms
V.34 INFO bit map
Reserved for modulation setup and training reports (Note 5)
Transmit Carrier Negotiation Result
Receive Carrier Negotiation Result
Transmit Carrier symbol rate (0-8000)
Receive Carrier symbol rate (0-8000)
Transmit Carrier frequency (0-4000)
Receive Carrier frequency (0-4000)
Initial transmit carrier data rate (0-64000)
Initial receive carrier data rate (0-64000)
Reserved
Temporary carrier loss event count
Carrier Rate re-negotiation event count
Carrier Retrains requested
Carrier Retrain requests granted
Final transmit carrier rate
Final receive carrier rate
Reserved
Protocol Negotiation Result (Note 7)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1 Tables are numbered separately within this #UD section to be consistent with the Microsoft specification.
2 Notes refer to notes in the Microsoft specification
Version 1.0
Lucent Technologies Inc.
25
Host-Based Modem
AT Command Set
Test and Debug AT Commands (continued)
41
42
43
44
45
46-4F
50
51
52
53
54
55
56
57
58
59
5A-5F
60
61
62-7F
80-FF
3 digits
2 digits
2 digits
Table 8
4 digits
0-400
0-FF
0-FF
0-1
0-200
1 digit
1 digit
8 digits
8 digits
8 digits
8 digits
8 digits
8 digits
8 digits
8 digits
0-2
0-2
0-FFFFFFFF
0-FFFFFFFF
0-FFFF
0-FFFF
0-FFFFFFFF
0-FFFFFFFF
0-FFFF
0-FFFF
Tables 9-10
2 digits
Note 10
0-FF
Data Addendum
June 15, 1998
Error Control frame size
Error control link timeouts
Error control link NAKs
Compression Negotiation Result (Note 7)
Compression dictionary size (Note 7)
Reserved
Transmit flow control: 0 = off; 1 = DC1/DC3; 2 = V.24 ckt 106/133
Receive flow control: 0 = off; 1 = DC1/DC3; 2 = V.24 ckt 106/133
Transmit characters sent from DTE (Note 8)
Received characters sent to DTE (Note 8)
Transmit characters lost (data overrun errors from DTE) (Note 9)
Received characters lost (data overrun errors to DTE) (Note 9)
Transmit Frame count, if error control protocol running (Note 8)
Received Frame count, if error control protocol running (Note 8)
Transmit Frame error count, if error control protocol running (Note 9)
Received Frame error count, if error control protocol running (Note 9)
Reserved
Termination Cause
Call Waiting event count
Reserved for future versions of this specification
Reserved for manufacturer proprietary keys
X
X
X
X
X
X
X
Table 2 - Call Setup Result Codes
Code
0
1
2
3
4
5
6
7
8
9
A
B
C-F
Definition
No previous call (modem log has been cleared since any previous calls)
No dial tone detected
Reorder signal detected, network busy
Busy signal detected
No recognized signal detected
Voice detected
Text telephone signal detected (see V.18)
Data Answering signal detected (e.g. V.25 ANS, V.8 ANSam)
Data Calling signal detected (e.g. V.25 CT, V.8 CI)
Fax Answering signal detected (e.g. T.30 CED, DIS)
Fax Calling signal detected (e.g. T.30 CNG)
V.8bis signal detected
Reserved
Implemented
X
X
X
X
X
Table 6 - gstnModulationSchemeActive from 3.7.2/V.58
Value (hex)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
E-7F
80
81
82
83
80-FF
26
Description
V.17
V.21
V.22
V.22bis
V.23 Constant Carrier (1200/75)
V.23 Switched Carrier (half duplex)
V.26bis
V.26ter
V.27ter
V.29 HD
V.32
V.32bis
V.34
V.34 HD
V.pcm (asymmetric)
V.pcm (symmetric)
Reserved (V.58)
“X2™”
“K56FLEX™”
“V.FC”
“V.32terbo”
Reserved for mfgs
Implemented
Lucent Technologies Inc.
X
X
X
Version 1.0
Data Addendum
June 15, 1998
Test and Debug AT Commands (continued)
Host-Based Controller Modem
AT Command Set
Table 7 - errorControl Active from 3.5.2/V.58
Value
0
1
2
3-7F
80
81
82
82-FF
Description
Disable/none
V.42 LAPM
V.42 Alternative protocol (MNP™)
Reserved (V.58)
MNP10™
ECP™ Enhanced Cellular Protocol
ETC
Reserved for mfgs
Implemented
X
X
X
Table 8 - compressionActive from 3.2.2/V.58
Value
0
1
2-7F
80
81-FF
Description
None
V.42bis
Reserved (V.58)
MNP5™
Reserved for mfgs
Implemented
X
X
X
Table 9 - Additional callCleared codes (3.6.4/V.58)
Code
1
2
3
4
Definition
No Previous call
Call is still in progress
Call Waiting signal detected
Delayed - see ETS 300 001
Implemented
X
X
X
Table 10 - callCleared codes from 3.6.4/V.58-1994
callCleared: Indicates that the DCE has gone on hook and that the previously existing network connection has
been cleared. These values are hexadecimal, converted from decimal in V.58.
Value
0
1-3
A
B
C
D
14
15
16
17
18
19
1E
1F
20
28
29
Version 1.0
Description
CauseUnidentified
See Table 9 above
NMSinitiatedDialCall
NMSinitiatedLeasedLineRestoral
NMSinitiatedRedial
NMSinitiatedDialDisconnect
PowerLoss
EquipmentFailure
FrontPanelDisconnectRequested
FrontPanelLeasedLineRestoral
AutomaticLeasedLineRestoral
InactivityTimerExpired
cct116RestoralRequest
cct108isOffInhibitsDial
cct108turnedOff
NoNumberProvided
BlacklistedNumber
Notes
Call setup issues
Implemented
X
X
-- Network Management System
DCE
X
DTE Interface
Line Interface
Lucent Technologies Inc.
X
27
Host-Based Modem
AT Command Set
Test and Debug AT Commands (continued)
2A
2B
2C
2D
2E
2F
30
31
32
33
34
3C
3D
3E
3F
40
41
42
46
47
50
51
52
5A
5B
5C
5D
5E
5F
60
64
28
CallAttemptsLimitExceeded
ExtensionPhoneOffHook
CallSetupFailTimerExpired
IncomingCallDetected
LoopCurrentInterrupted
NoDialTone
VoiceDetected
ReorderTone
SitTone
EngagedTone
LongSpaceDisconnect
CarrierLost
TrainingFailed
NoModulationinCommon
RetrainFailed
RetrainAttemptCountExceeded
GstnCleardownReceived
FaxDetected
InTestMode
IntrusiveSelfTestInitiated
AnyKeyAbort
DteHangupCommand
DteResetCommand
FrameReject
NoErrorControlEstablished
ProtocolViolation
n400exceeded
NegotiationFailed
DisconnectFrameReceived
SabmeFrameReceived
LossOfSynchronization
Data Addendum
June 15, 1998
X
X
X
X
Signal Converter
X
X
X
Test
Call Control
X
X
Error Control
X
X
Data Compression
Lucent Technologies Inc.
Version 1.0
Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT Commands Reference S-Registers
S-registers generally affect how the AT commands perform. Contents of the registers can be displayed or
modified when the modem is in command mode.
To display the value of an S-register:
TYPE:
ATSn? where n is the register number.
PRESS:
Enter
To modify the value of an S-register:
TYPE:
ATSn = r
where n is the register number, and r is the new register value.
PRESS:
Enter
S0
Auto Answer Ring Number
This register determines the number of rings the modem will count before automatically answering a call. Enter 0
(zero) if you do not want the modem to automatically answer at all. When disabled, the modem can only answer
with an ATA command.
Range:
0—255
Default:
0
Units:
rings
S1
Ring Counter
This register, Ring Counter, is read only. The value of S1 is incremented with each ring. If no rings occur over a
six second interval, this register is cleared.
Range:
0—255
Default:
0
Units:
rings
S2
AT Escape Character (user defined)
This register determines the ASCII valued used for an escape sequence. The default is the + character. The
escape sequence allows the modem to exit data mode and enter command mode when on-line. Values greater
than 127 disable the escape sequence.
Range:
0—255
Default:
43
Units:
ASCII
S3
Command Line Termination Character (user defined)
This register determines the ASCII values as the carriage return character. This character is used to end
command lines and result codes.
Range:
0—127, ASCII decimal
Default:
13 (carriage return)
Units:
ASCII
Note:
29
This register value is not stored with &W command.
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Host-Based Controller Modem
AT Command Set
AT Commands Reference S-Registers (continued)
S4
Data Addendum
June 15, 1998
Response Formatting Character (user defined)
This register determines the ASCII value used as the line feed character. The modem uses a line feed character
in command mode when it responds to the computer.
Range:
0—127, ASCII decimal
Default:
10 (line feed)
Units:
ASCII
Note: This register value is not stored with &W command.
S5
Command Line Editing Character (user defined)
This register sets the character recognized as a backspace and pertains to asynchronous only. The modem will
not recognize the backspace character if it is set to a value that is greater than 32 ASCII. This character can be
used to edit a command line. When the echo command is enabled, the modem echoes back to the local DTE the
backspace character, an ASCII space character, and a second backspace character. This means a total of three
characters are transmitted each time the modem processes the backspace character.
Range:
0—127, ASCII decimal
Default:
8 (backspace)
Units:
ASCII
Note: This register value is not stored with &W command.
S6
Wait Before Dialing
This register sets the length of time, in seconds, that the modem must wait (pause) after going off-hook before
dialing the first digit of the telephone number. The modem always pauses for a minimum of two seconds, even if
the value of S6 is less that two seconds. The wait for dial tone call progress feature (W dial modifier in the dial
string) will override the value in register S6. This operation, however, may be affected by some ATX options
according to country restrictions.
Range:
2—65
Default:
2
Units:
seconds
S7
Connection Completion Time-Out
This register sets the time, in seconds, that the modem must wait before hanging up because carrier is not
detected. The timer is started when the modem finishes dialing (originate), or goes off-hook (answer). In
originate mode, the timer is reset upon detection of an answer tone if allowed by country restriction. The timer
also specifies the wait for silence time for the @ dial modifier in seconds. S7 is not associated with the W dial
modifier.
Range:
1—255
Default:
50
Units:
seconds
30
Lucent Technologies Inc.
Version 1.0
Data Addendum
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AT Commands Reference S-Registers (continued)
S8
Host-Based Controller Modem
AT Command Set
Comma Dial Modifier Time
This register sets the time, in seconds, that the modem must pause when it encounters a comma (,) in the dial
command string.
Range:
0—65
Default:
2
Units:
seconds
S10
Automatic Disconnect Delay
This register sets the length of time, in tenths of a second, that the modem waits before hanging up after a loss of
carrier. This allows for a temporary carrier loss without causing the local modem to disconnect.
The actual interval the modem waits before disconnecting is the value in register S10.
Range:
1—254
Default:
20
Units:
.1 seconds
S11
DTMF Dialing Speed
This register determines the dialing speed which is prefixed for each country.
Range:
50—150
Default:
95
Units:
.001 seconds
S12
Escape Guard Time
This register sets the value (in 20 ms increments) for the required pause after the escape sequence (default 1 s).
Range:
0—255
Default:
50
Units:
.02 seconds
S14
General Bit Mapped Options Status
Indicates the status of command options. Only bit 3 and bit 6 are used, read-only.
Bit 3
Result codes (Vn)
0 = Numeric (V0)
1 = Verbose (Vl) (Default)
Bit 6
Pulse dial PPS selection (&Pn)
0 = 10 PPS (&p0, &p1) (Default)
1 = 20 PPS (&p2)
Default:
8 (00001000b)
Version 1.0
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31
Host-Based Controller Modem
AT Command Set
AT Commands Reference S-Registers (continued)
S21
Data Addendum
June 15, 1998
V.24/General Bit Mapped Options Status
Indicates the status of command options. Only bits 3, 4 and 5 are used, read-only.
Bits 3-4
DTR behavior (&Dn)
0 = &D0 selected
1 = &D1 selected
2 = &D2 selected (Default)
3 = &D3 selected
Bit 5
DCD behavior (&Cn)
0 = &C0 selected
1 = &C1 selected (Default)
Default:
48 (00110000b)
S22
Results Bit Mapped Options Status
Indicates the status of command options. Only bits 4, 5 and 6 are used, read only.
Bits 4-6
result codes (Xn)
0 = X0 selected
4 = X1 selected
5 = X2 selected
6 = X3 selected
7 = X4 selected (Default)
Bit 7
Pulse dial make/break ratio (&Pn)
0 = 33/67 make/break ratio (&P1, &P2) (Default)
1 = 39/61 make/break ratio (&P0)
Default:
112 (01110000b)
S24
Timer to Control Sleep Mode
This command displays the number of seconds of inactivity (no characters sent from the DTE, no RING) in the
off-line command state before the modem places itself into standby mode. A value of zero prevents standby
mode. S24 is an alias for S89.
Note: If a number between 1 and 4 is entered for this register, it will set the value to 5, and the inactivity before
standby will be 5 seconds. This is done for compatibility with previous products which allowed time-outs
down to 1 s.
Range:
0, 5—65
Default:
10
S28
V.34 Modulation Enable/Disable
This register enables/disables V.34 modulation.
0 = disabled, 1 = enabled
Range:
0 —1
Default:
1
32
Lucent Technologies Inc.
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AT Commands Reference S-Registers (continued)
S30
Host-Based Controller Modem
AT Command Set
Inactivity Timer
S30 specifies the length of time (in minutes) that the modem will wait before disconnecting when no data is sent
or received. This function is only applicable to buffer mode..
Range:
0—255
Default:
0
S32
Synthetic Ring Volume
This register specifies a synthetic ring volume.
Range:
0—255 (allowed, but not meaningful)
Default:
10
S33
Synthetic Ring Frequency
This register specifies a synthetic ring frequency. There are five choices, with 0 meaning disabled.
Range:
Default:
S35
0—5
0
Data Calling Tone
Data Calling Tone is a tone of certain frequency and cadence as specified in V.25 which allows remote
Data/FAX/Voice discrimination. The frequency is 1300 Hz with a cadence of .5 s on and 2 s off.
0 = disabled, 1 = enabled
Range:
0—1
Default:
0
S37
Dial Line Rate (default 0)
This register sets the maximum line data rate. In K56flex and V.90 mode, S37 controls the upstream V.34 rate.
S37 = 0
S37 = 1
S37 = 2
S37 = 3
S37 = 4
S37 = 5
S37 = 6
S37 = 7
S37 = 8
S37 = 9
S37 = 10
S37 = 11
S37 = 12
S37 = 13
S37 = 14
S37 = 15
S37 = 16
S37 = 17
S37 = 18
S37 = 19
Version 1.0
auto rate
reserved
1200/75 bit/s (V.23)
300 bit/s
reserved
1200 bit/s
2400 bit/s
4800 bit/s
7200 bit/s
9600 bit/s
12000 bit/s
14400 bit/s
16800 bit/s
19200 bit/s
21600 bit/s
24000 bit/s
26400 bit/s
28800 bit/s
31200 bit/s
33600 bit/s
Lucent Technologies Inc.
33
Host-Based Controller Modem
AT Command Set
AT Commands Reference S-Registers (continued)
S38
Data Addendum
June 15, 1998
K56flex Downstream Rate
To force a particular K56flex downstream rate, use S-register S38. S38=0 disables K56flex, and may allow a
more reliable V.34 connection. S38=1 default allows the modem to select the downstream rate automatically.
Other values of S38 force the downstream rate, with fallback to V.34 if unsuccessful at the configured rate:
S38=0
Disable K56flex
S38=1
Automatic rate selection (default)
S38=2
32 kbit/s
S38=3
34 kbit/s
S38=4
36 kbit/s
S38=5
38 kbit/s
S38=6
40 kbit/s
S38=7
42 kbit/s
S38=8
44 kbit/s
S38=9
46 kbit/s
S38=10
48 kbit/s
S38=11
50 kbit/s
S38=12
52 kbit/s
S38=13
54 kbit/s
S38=14
56 kbit/s
The number of robbed-bit signaling (RBS) frames detected decreases the true DCE rate per the following table:
RBS links Rate hit (kbit/s)
0
0
1
2
2
4
3
4
4
6
5
8
6
8
For example, if S38=10 and there are 3 RBS links, the K56flex downstream rate will be 48-4=44 kbit/s. The
exception to this is for 32 kbit/s and 34 kbit/s, which are the true rates regardless of the number of RBS frames
detected.
One special value of S38, S38 = 251, is used for back-to-back (factory) testing of V.34 rates, with DSP code
running in external memory. Set S38=251 on both originating and answering modems. (This feature is not valid
with ramless solution.)
S42
Auto Rate (default 1, range 01)
This command is used for testing and debugging only.
V.32bis and V.22bis auto rate is disabled. Retrain operation is disabled or enabled in data mode, and fallback is
disabled in data mode. In K56flex mode, S42=0 forces connection at the rate specified by S38 (even if the rate
cannot be sustained), without fallback to V.34.
0 = auto rate disabled, 1 = enabled.
Range:
0—1
Default:
1
34
Lucent Technologies Inc.
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AT Commands Reference S-Registers (continued)
S43
Host-Based Controller Modem
AT Command Set
Auto Mode (default 1, range 01)
This command is used for testing and debugging only.
V.32bis startup auto mode operation disabled.
0 = auto mode disabled, 1 = enabled.
Range:
0—1
Default:
1
S48
LAPM Error Control and Feature Negotiation (default 7)
S48 = 7
Negotiation enabled
S48 = 128
Negotiation disabled; forces immediate fallback options specified in S36
The following chart lists the S36 and S48 configuration settings necessary to negotiate certain types of
connections:
S48 = 7
S48 = 128
S36 = 0, 2
LAPM or hangup
do not use
S36 = 1, 3
LAPM or async
async
S36 = 4, 6
LAPM, MNP, or hangup
MNP or hangup
S36 = 5, 7
LAPM, MNP, or async
MNP or async
S89
Timer to Control Sleep Mode
This command displays the number of seconds of inactivity (no characters sent from the DTE, no RING) in the
off-line command state before the modem places itself into standby mode. A value of zero prevents standby
mode.
Note: If a number between 1 and 4 is entered for this register, it will set the value to 5, and the inactivity before
standby will be 5 seconds. This is done for compatibility with previous products which allowed time-outs
down to 1 s.
Range:
0, 5—65
Default:
10
S90
Read-only Local Phone
This register tells the status of the Local Phone. It is read-only.
0 = on-hook
1 = off-hook
S91
Line Transmit Level
This register is effective only for Japan. It specifies the line transmit level in dBm with an implied minus sign.
Range:
6—15
Default:
15
Units:
1 dB
S108
Network Codec Type
S108=22
µ-Law
S108=33
A-law
S108=7 default, or any other value: Coding as specified by digital modem in V.8bis information. If an old server
does not tell its code type in V.8bis, then the client modem chooses based on its country ID. µ-law regions are
Japan, Taiwan, Korea, Hong Kong, North America, and Latin America. Everywhere else is A-law. (This S –
Register is valid only in K56flex mode.)
Version 1.0
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35
Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT FAX Command Set (Class 1 FAX)
The Lucent Technologies modem supports FAX commands conforming to EIA standard 578. These commands
are given here with short descriptions; complete explanations are given in the standard, available from the
Electronic Industries Association.
Table 5. The AT FAX Command Set Summary
Command
+FCLASS?
+FCLASS = ?
+FCLASS = n
Service class indication
Service class capabilities
Service class selection
+FTS = <n>
Transmission silence
+FRS = <n>
Receive silence
+FTM = <m>
Transmit FAX data with <m> carrier
+FRM = <m>
Receive FAX data with <m> carrier
+FTH = <m>
Transmit HDLC data with <m> carrier
+FRH = <m>
Receive HDLC data with <m> carrier
+FTM = ?
Transmit FAX modulation
+FRM = ?
Receive FAX modulation
+FTH = ?
Transmit HDLC Data modulation
+FRH = ?
Receive HDLC Data modulation
+FMI?
Manufacturer Identification
+FMM?
Product Identification
+FMR?
Version/Revision Information
+FPR = <n>
Set DTE-DCE Fax port rate
+FPR = ?
+FPR?
+FAA = <n>
+FAA = ?
+FAA?
36
Description
Reports all fax port rate that DCE supports
Reports the current fax port rate of DTE-DCE
Set DCE Adaptive answer mode
Display valid adaptive answer values that DCE supports
Display current set value of adaptive answer mode
Version 1.0
Lucent Technologies Inc.
Host-Based Controller Modem
AT Command Set
1998
Data Addendum
June 15,
AT FAX Commands Reference
+FCLASS?
Service Class Indication
This command causes the modem to display the current setting. The modem can operate either as a Class 0
data modem or a class 1 FAX modem.
Typical responses:
+FCLASS?
000 if in data mode; 001 if in FAX class 1, 008 if in voice mode, and 080
if in
VoiceView† mode.
+FCLASS=?
Service Class Capabilities
This command causes the modem to display the classes it supports.
Typical responses:
+FCLASS = ? 0, 1, 8, 80
+FCLASS=n
Service Class Selection
This command sets the modem for class n operation, where n is either a 0 or 1.
Parameters:
0, 1, 8, 80
Default:
0
Command options:
+FCLASS = 0 Select data mode.
+FCLASS = 1 Select Facsimile Class 1.
+FCLASS = 8 Select voice mode.
+FLCASS = 80 Select VoiceView mode.
+FTS=<n>
Transmission Silence
This command causes the modem to stop transmitting data and pause for 10 * n ms. At the end of this period,
the modem then responds OK. You can specify any number from 0 through 255 as the value of n; for example, a
value of 5 specifies a period of 50 ms.
n = 0255 (10 ms intervals)
+FRS=<n>
Receive Silence
This command causes the modem to listen and wait for a 10 * n ms period of silence on the line. At the end of
this period, the modem then responds OK. You can specify any number from 0 through 255 as the value of n; for
example, a value of 5 specifies a period of 50 ms.
n = 0255 (10 ms intervals)
37
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Host-Based Controller Modem
AT Command Set
AT Fax Commands Reference (continued)
+FTM=<m>
Data Addendum
June 15, 1998
Transmit FAX Data with <m> Carrier
This command causes the modem to transmit data at the modulation specified by <m>. The following table
shows the values you can enter for this command and the meaning of those values.
Command Option
+FRM=<m>
Modulation
Speed (bits/s)
+FTM=3
V.21 Channel 2
300
+FTM=24
V.27ter
2400
+FTM=48
V.27ter
4800
+FTM=72
V.29
7200
+FTM=96
V.29
9600
+FTM=73
V.17
7200
+FTM=74
V.17 (short train)
7200
+FTM=97
V.17
9600
+FTM=98
V.17 (short train)
9600
+FTM=121
V.17
12000
+FTM=122
V.17 (short train)
12000
+FTM=145
V.17
14400
+FTM=146
V.17 (short train)
14400
Receive FAX Data with <m> Carrier
This command causes the modem to receive data at the modulation specified by <m>.
Command Option
38
Modulation
Speed (bits/s)
+FRM=3
V.21 Channel 2
300
+FRM=24
V.27ter
2400
+FRM=48
V.27ter
4800
+FRM=72
V.29
7200
+FRM=96
V.29
9600
+FRM=73
V.17
7200
+FRM=74
V.17 (short train)
7200
+FRM=97
V.17
9600
+FRM=98
V.17 (short train)
9600
+FRM=121
V.17
12000
+FRM=122
V.17 (short train)
12000
+FRM=145
V.17
14400
+FRM=146
V.17 (short train)
14400
Lucent Technologies Inc.
Version 1.0
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June 15, 1998
AT Fax Commands Reference (continued)
+FTH=<m>
Host-Based Controller Modem
AT Command Set
Transmit HDLC Data with <m> Carrier
This command causes the modem to transmit data framed in the HDLC protocol at the modulation specified
by <m>.
Command Option
+FRH=<m>
Modulation
Speed (bits/s)
+FTH=3
V.21 Channel 2
300
+FTH=24
V.27ter
2400
+FTH=48
V.27ter
4800
+FTH=72
V.29
7200
+FTH=96
V.29
9600
+FTH=73
V.17
7200
+FTH=74
V.17 (short train)
7200
+FTH=97
V.17
9600
+FTH=98
V.17 (short train)
9600
+FTH=121
V.17
12000
+FTH=122
V.17 (short train)
12000
+FTH=145
V.17
14400
+FTH=146
V.17 (short train)
14400
Receive HDLC Data with <m> Carrier
This command causes the modem to receive data framed in the HDLC protocol at the modulation specified
by <m>.
Command Option
Version 1.0
Modulation
Speed
(bits/s)
+FRH=3
V.21 Channel 2
300
+FRH=24
V.27ter
2400
+FRH=48
V.27ter
4800
+FRH=72
V.29
7200
+FRH=96
V.29
9600
+FRH=73
V.17
7200
+FRH=74
V.17 (short train)
7200
+FRH=97
V.17
9600
+FRH=98
V.17 (short train)
9600
+FRH=121
V.17
12000
+FRH=122
V.17 (short train)
12000
+FRH=145
V.17
14400
+FRH=146
V.17 (short train)
14400
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39
Host-Based Controller Modem
AT Command Set
AT Fax Commands Reference (continued)
+FPR=<n>
Data Addendum
June 15, 1998
Select Fax port rate
This command sets the DTE to DCE fax port rate.
DTE command
DCE action
Description or notes
•FPR • 0
Execute •IPR • 0
Select automatic rate detection
•FPR • 1
Execute •IPR • 2400
Set DTE-DCE to 2400 bit/s
•FPR • 2
Execute •IPR • 4800
Set DTE-DCE rate to 4800 bit/s
•FPR • 4
Execute •IPR • 9600
Set DTE-DCE rate to 9600 bit/s
•FPR • 8
Execute •IPR • 19 200
Set DTE-DCE rate to 19 200 bit/s
•FPR • 10
Execute •IPR • 38 400
Set DTE-DCE rate to 38 400 bit/s
•FPR • 18
Execute •IPR • 57 600
Set DTE-DCE rate to 57 600 bit/s
•FPR • ? (if all values listed above
are supported)
Report (0,1,2,4,8,10,18)
DCE supports 2400, 4800, 9600, 19 200,
38 400
and 57 600 bit/s
•FPR? (if •IPR • 0)
Report 0
DTE-DCE rate is automatically detected
•FPR? (if •IFC • 2400)
Report 1
DTE-DCE rate is 2400 bit/s
•FPR? (if •IFC • 4800)
Report 2
DTE-DCE rate is 4800 bit/s
•FPR? (if •IFC • 9600)
Report 4
DTE-DCE rate is 9600 bit/s
•FPR? (if •IFC • 19 200)
Report 8
DTE-DCE rate is 19 200 bit/s
•FPR? (if •IFC • 38 400)
Report 10
DTE-DCE rate is 38 400 bit/s
•FPR? (if •IFC • 57 600)
Report 18
DTE-DCE rate is 57 600 bit/s
•FPR? (all other •IPR settings)
Report 255
255 indicates invalid setting
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Version 1.0
Data Addendum
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AT Fax Commands Reference (continued)
+FAA
Host-Based Controller Modem
AT Command Set
Adaptive answer
A Service Class 1 Facsimile DCE may have the ability to answer as a data modem DCE or as a Facsimile DCE. It
also may be able to adaptively change from Class 1 facsimile mode (•FCLASS•1.0) to data modem operation
(•FCLASS•0) in response to the incoming call. The •FAA parameter controls this feature.
–
–
–
–
Write syntax:
Valid values:
Default value:
Mandatory value:
•FAA•<value>
0, 1
0
0
•FAA•0
The DCE shall answer only as a Class 1 facsimile device. No automatic switching of service class
shall occur based on the calling device type.
•FAA•1
The DCE can answer and automatically determine whether to answer as a facsimile DCE or as a
data modem. If a data modem is detected, the DCE shall operate as described in 8.3.2.4.
NOTE – The •FAA parameter controls automatic switching only from Class 1 to Class 0, for call answering only. It
does not affect call origination, switching to Class 1 from other classes, or switching to classes other than Class 0.
Manufacturer Identification (+FMI)
Read Syntax:
AT+FMI
Result:
Lucent Data/Fax
Lucent Data/Fax/Voice/VoiceView (depending on product)
Product Identification (+FMM)
Read Syntax:
Result:
AT+FMM
Data/Fax
Data/Fax/Voice/VoiceView (depending on product)
Version / Revision Information (+FMR)
Read Syntax:
AT+FMR
Result:
Lucent driver version number (e.g. 1.5.05)
Version 1.0
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Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT Voice Command Set
The AT Voice Command set follows a modified IS-101 architecture. The commands are sent through the comm
port, but the data path is sent either through the comm port or through a DMA channel using the wave driver.
Tables 1 and 2 show a summary of the AT Voice Command Set.
Summary of the AT Voice Command Set
Table 6. The AT Voice Command Set
Voice Commands
Command
AT+FCLASS=8
AT+VIP
AT+VCID
AT+VDR
AT+VGT
AT+VIT
AT+VNH
AT+VTD
AT+VLS
AT+VSD
AT+VRA
AT+VRN
AT+VTS
AT+VTR
AT+VTX
AT+VRX
AT+VSM
AT+VEM
AT+VGR
AT+VPR
Description
Enter voice mode
Initialize voice parameters
Caller ID
Distinctive ring
Speaker volume control
DTE/DCE inactivity timer
Automatic hang-up control
Set beep tone duration timer
Analog source/destination selection and DTMF/tone reporting
Set silence detection timer
Set ringback goes away timer
Set ringback never came timer
DTMF/tone generation
Start full duplex voice transmission and reception process
Enter voice transmit state (see examples)
Enter voice receive state (see examples)
Voice compression method
Event reporting and masking
Receive gain selection
Select DTE/DCE interface rate
Table 7. The AT Voice Command Set Not Defined In IS-101 Specification
Command
ATS32
ATS33
42
Description
Synthetic ring volume
Synthesized ring frequency
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Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT Voice Commands Reference
AT+FCLASS=8
Enter Voice Mode
The command AT+FCLASS=8 puts the modem in voice mode. Speakerphone and TAD modes are subsumed
under the more general heading of voice mode, and use a particular subset of voice mode commands to
implement their respective features and functions.
The modem controller will maintain the overall state of the system so as to know when voice commands are
issued in the context of using the speakerphone versus TAD or other voice contexts.
AT+FCLASS?
Returns the current DCE mode
AT+FCLASS=?
Queries the DCE for the range of modes supported DCE returns: 0, 1, 8, 80 (data, FAX,
voice, VoiceView)
AT+VIP
Initialize Voice Parameters
The command AT+VIP causes the modem to initialize all the voice parameters to their default values. The
command has no effect on the +FCLASS setting.
AT+VCID=<pmode>
Caller ID
With this command caller identification is enabled/disabled.
• Disable caller ID:
<pmode>=0
• Enable, formatted caller report: <pmode>=1
• Enable, unformatted caller report: <pmode>=2
AT+VCID?
Returns the current caller ID pmode
AT+VCID=?
Queries the DCE for the range of supported caller ID report formats DCE returns: 0, 1, 2
AT+VDR=<enable>,<report>
Distinctive Ringing & Cadence Report
This command will enable the distinctive ringing feature. This will allow a report of DROF/DRON to follow an
exact ring cadence coming over the phone line.
AT+VDR?
Returns the current values of <enable> and <report
AT+VDR=?
returns: (0, 1),
Queries the DCE for the range of supported distinctive ring configurations DCE
(0255)
AT+VGT=<level>
Speaker Volume Control
This command will enable the speaker volume control.
✟
<level> is 0255
✟
<level>=128: Nominal volume level for sending to speaker
✟
<level>=<value greater than 128>: Increase volume above nominal level
✟
<level>=<value less than 128>: Decrease volume below nominal level
AT+VGT?
Returns current value
AT+VGT=?
Returns range of supported values
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Host-Based Controller Modem
AT Command Set
AT Voice Commands Reference (continued)
AT+VGR=<gain>
Data Addendum
June 15, 1998
Receive Gain Selection
This command will enable the receive microphone gain control.
✟
<gain> is 0255: the only useful range is 121—134
✟
<gain>=128: nominal level for receive gain from microphone
✟
<gain>=<value greater than 128>: increase gain above nominal level
✟
<gain>=<value less than 128>: decrease gain below nominal level
TAD mode—This command may be used in TAD local recording to control the recording level from the
microphone.
Speakerphone mode—This command may be used to control the gain to the remote caller.
AT+VGR?
Returns current value of receive gain
AT+VGR=?
Returns range of supported gain values
AT+VEM=<mask>
Event Reporting and Masking
The DTE can use this command to disable an event report regardless of the DCE state, or of the analog signal
source or destination configuration. Mask is Bits 0—33 (i.e., FFFFFFFFC). See the IS-101 specification for
defined bit values.
AT+VEM?
Returns the current values of the mask
AT+VEM=?
Queries the DCE for the range of supported service level events
AT+VIT = <Timer>
DTE/DCE Inactivity Timer
This command sets the DCE’s value for the DTE/DCE inactivity timer. The units are in one seconds.
AT+VIT?
Returns the current value of the timer
AT+VIT=?
AT+VNH = <Hook>
Queries the DCE for the range of supported values
Automatic Hang-up Control
This command causes the DCE to enable or disable automatic hangups in the data and facsimile modes. See
the IS-101 specification for the detailed description of this command and its interaction with the +FCLASS and
ATH commands.
✟
<hook> = 0 The DCE retains automatic hangups (which is the way in the other non-voice modes).
✟
<hook> = 2 The DCE disables automatic hangups in the other non-voice modes. The DTE only performs a
logical hangup (returns the “OK” result code).
AT+VNH?
Returns the current value
AT+VNH=?
Returns the supported values
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AT Voice Commands Reference (continued)
Host-Based Controller Modem
AT Command Set
AT Commands: Speakerphone Operation
AT+VLS=<label>
Analog Source/Destination Selection
This is a general purpose analog source/destination command that attaches various analog devices to the system
in voice mode.
Speakerphone on: AT+VLS=7.
Attach internal speaker and internal microphone, DCE off-hook.
✟ Speakerphone off: AT+VLS=0.
Detach analog devices, DCE on-hook.
✟ Microphone Control/Phone Muting:
✟
AT+VLS=5 disables/detaches microphone analog source (leaving speaker only) when speakerphone is in
operation (phone mute feature).
AT+VLS=7 restores/attaches microphone along with speaker (normal speakerphone operation).
AT+VLS?
Reports the current analog source/destination configuration, along with a listing of all event codes
reported from the modem to the DTE under that configuration.
AT+VLS=?
Queries the DCE for the range of supported configurations and the list of unsolicited event codes
that the modem will report to the DTE under each configuration. For speakerphone, the
configurations supported are 0, 5, and 7as explained above.
AT Commands: Telephone Answering Device
AT+VTD=<dur>
Beep Tone Duration Timer
This command sets the default duration for DTMF/tone generation in 0.01 s increments.
For DTMF digits, beep tone duration is the interdigit time. For tone generation, this number is the actual tone
duration.
AT+VTS=<string>
DTMF and Tone Generation in Voice Mode
This command will cause the modem to produce a sequence of DTMF tones (or other tones, such as dial tone,
busy, silence, etc.) as specified in the string parameter. Specifications for the format of tone strings are detailed
in IS-101.
■
AT+VTS? reports the current <string> parameter.
■
AT+VTS=? reports the range of frequencies supported for tone generation, as well as tone duration.
Example: (2003300), (2003300), (0500).
AT+VTR
Start voice transmission and reception process
This command will cause DCE to start full duplex voice mode. In this mode, the DTE selects the analog source
and sink through the +VLS command; the selections can be microphone and speaker or GSTN. The DCE is not
required to perform any Acoustic Echo Cancellation nor any Line Echo Cancellation.
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45
Host-Based Controller Modem
AT Command Set
AT Voice Commands Reference (continued)
AT+VLS=?
Data Addendum
June 15, 1998
Analog Source/Destination Selection and DTMF/Tone Reporting
Requests for the modem's DTMF/Tone reporting capabilities are made using this command. For each system
configuration in voice mode (i.e., speakerphone and answering machine), the modem reports the capabilities that
are enabled for the configuration.
Also, for each configuration, the modem indicates tone-reporting capabilities for each of the three different voice
states: voice transmit data, voice receive data, and voice command state (voice idle).
TAD supports each of the following IS-101 analog source/destination configurations:
Label #
Description
0
DCE on-hook, local phone connected to Telco.
1
DCE off-hook, DCE connected to Telco.
2
DCE off-hook, local phone connected to DCE.
3
DCE off-hook, local phone connected to Telco, DCE to local phone.
4
Speaker connected to DCE, DCE on-hook (playback messages)
5
Speaker connected to DCE, DCE off-hook (call screening)
6
Microphone connected to DCE, DCE on-hook (record greeting)
7
Microphone and speaker connected, DCE off-hook (speakerphone)
AT+VSD=<sds, sdi>
Silence Detection (QUIET and SILENCE)
This command sets both the silence detection sensitivity (<sds>) and silence detection interval (<sdi>).
■
Larger values of <sds> indicate that the modem is to treat noisier line conditions as silence.
<sds> = 128 ; Nominal level of sensitivity; −40 dBm (default) .
<sds> > 128 ; More aggressive ; <sds>=129 is −39 dBm.
<sds> < 128 ; Less aggressive; <sds>=127 is −41 dBm.
■
The <sdi> specifies the amount of time the modem shall wait before reporting silence to the DTE. It is used for
determining :
Presumed hang-up (SILENCE), after which the modem sends <DLE>-s to DTE.
Default is 5 seconds.
AT+VSM=<cml>,<vsr>
Compression Method and Sampling Rate Specifications
This command enables the compression method and sampling specifications where cml = compression method
label and vsr = voice sampling rate.
AT+VSM?
Returns the numeric and string labels of the compression method currently in use, and the
sampling rate currently in use.
AT+VSM=?
Reports the voice compression methods supported by the DCE, and the voice sampling rates at
which they are supported: The default is 129,8000 (16-bit linear, 8.0 kHz )
46
✟
128, 8-bit linear, (7200, 8000, 11025)
✟
129, 16-bit linear, (7200, 8000, 11025)
✟
130, 8-bit A-law, (8000)
✟
131, 8-bit µ-law, (8000)
✟
132, IMA ADPCM, (8000)
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AT Voice Commands Reference (continued)
AT+VRA=<interval>
Host-Based Controller Modem
AT Command Set
Ringback Goes Away Timer
The modem uses the ringback goes away timer when originating a call.
This command sets this timer to the amount of time the modem shall wait between ringbacks before assuming
that the remote station has gone off-hook.
AT+VRA?
AT+VRA=?
Returns the current value.
Returns the range of supported values.
AT+VRN=<interval>
Ringback Never Appeared Timer
The modem uses the ringback never appeared timer when originating a call.
The AT+VRN command sets this timer to the amount of time that the modem shall spend looking for an initial
ringback. If ringback is not detected within this interval, the modem shall assume that the remote station has
gone off-hook.
AT+VRN?
AT+VRN=?
Returns the current value.
Returns the supported values.
AT+VPR=<rate>
Select DTE/DCE Interface Rate
The AT+VPR command returns an OK for any rate but has no action.
Events Reported to the DTE :
The modem will return OK when going off-hook in voice mode (+FCLASS=8). After answering in voice mode, the
modem may send any of the following <DLE> shielded event codes to the DTE, as appropriate:
<DLE> Shielded Codes Sent from DCE to DTE
Code Character
Description
09, AD, #, *
a
b
c
d
e
h
H
R
s
<ETX>
@
DTMF tones
Answer tone
Busy tone
Fax calling tone
Dial tone
Data calling tone
Local phone on-hook
Local phone off-hook
Ring
Silence timer has expired
End of voice data transmission
CAS tone detected
<DLE> Codes Sent to DCE:
For simple actions in voice mode, the modem may send any of the following <DLE> shielded event codes
(in ASCII) to the DTE, as appropriate:
<DLE> Shielded Codes Sent from DTE to DCE
Code Character
Description
u
d
<ETX>
!
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Bump up the volume by 1 dB
Bump down the volume by 1 dB
End of voice data transmission
End receive data state
47
Host-Based Controller Modem
AT Command Set
AT Voice Commands Reference (continued)
Data Addendum
June 15, 1998
AT Voice Command Set Not Defined In IS-101 Specifications
S32
Synthetic Ring Volume
This command will provide a synthetic ring volume in dB with an implied minus sign. The default = 10.
S33
Synthetic Ring Frequency
This command will provide a synthetic ring frequency. The valid values are 05, with 0 = disabled and 15 =
five varying ring frequencies. The default = 0.
AT+VTS=!
This does a flash hook.
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AT Voice Commands Reference (continued)
Host-Based Controller Modem
AT Command Set
Voice Modem Command Examples
The application issues AT commands to request actions by the modem, and the modem responds with standard
TIA-602 result codes to tell the application that the requested action has been completed.
Notes for Speakerphone Examples
1. If the user decides to pick up his local (parallel) phone while in the middle of a speakerphone call, the DCE will
sense the transition and send the application a <DLE>-H sequence. The applicationwhich should always be
screening for DLE-shielded codes in the background when the modem is in the voice modecan then respond
to the <DLE>-H (for example, by resetting speakerphone buttons or doing whatever else needs to be done with
the speakerphone interface).
2. DLE-shielded codes that the modem will send to the application while in speakerphone mode are:
Command
Description
DLE - c
FAX calling tone detect.
DLE - e
Data calling tone detect.
DLE - h
Local phone went on-hook (hung up).
DLE - H
Local phone went off-hook (picked up).
3. When the user is in the middle of a speakerphone call, call waiting (hold operation) can be initiated when the
user hears the call-waiting signal through the speaker. Call waiting entails the following communication
between the application and the modem.
Command
Description
ATD!
Put the current call on hold, and answer the new incoming call.
OK
DCE responds. Original call is on hold, and the speakerphone user is connected
to the second call.
To terminate the second call and return to the first, the application should again send the modem the
ATD! command.
ATD!
Terminate the second call and return to the original call.
OK
DCE responds. Second call is terminated and the user is again connected to the
original call.
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AT Command Set
AT Voice Commands Reference (continued)
Data Addendum
June 15, 1998
Example # 1: Initiating a speakerphone call (with phone muting during conversation)
The speakerphone application is loaded. The modem is initially idle, in data mode. The user then decides to pick
up the phone to place a speakerphone call. Picking up the phone should initiate the following chain of events.
Command
Description
AT+FCLASS=8
The modem enters voice mode.
OK
DCE responds. Now in voice mode.
AT+VGT=128
Set speaker volume to normal level.
OK
DCE responds. Volume level is set.
AT+VLS=7
Attach internal speaker and microphone, DCE off-hook.
OK
DCE responds. Now in speakerphone mode. Phone off hook, dial tone audible,
speaker and microphone ready to use.
ATD5551234
Provide dial string for DCE to place the call.
OK
DCE responds. Number is dialed.
Call is placed through phone network. Caller can hear ringback or busy signal from the phone being called. If the
person at the other end picks up the phone, caller and callee converse. If the speakerphone user decides to
mute his speakerphone, the application sends the following to mute the speakerphone.
Command
Description
AT+VLS=5
Enter Mute Mode. Mic is disconnected from the line, leaving the speaker only.
OK
DCE responds. The mic is no longer connected to the line, and the
speakerphone is mute.
After a while, the speakerphone user decides to turn the mic back on (mute off). This is done when the
application issues the following command.
Command
Description
AT+VLS=7
No Mute. Microphone is reattached to system along with speaker.
OK
DCE responds. Speakerphone with both mic and speaker is operational.
Conversation ends, and user hangs up.
Command
Description
ATH
Application tells the modem to terminate the call with standard AT command.
OK
DCE responds.
Speakerphone is now on-hook. The speaker and mic have been detached from the system, and the modem
is now in data mode (+FCLASS=0).
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AT Voice Commands Reference (continued)
Host-Based Controller Modem
AT Command Set
Example # 2: Initiating a stored number speakerphone call
The speakerphone application is loaded. The modem is initially idle, in data mode. The user then decides to
place a speakerphone call either by entering the number without going off-hook first or selecting a number
previously stored in the application. When the user tells the application to dial, the following events occur:
Command
Description
ATD5551234;
Provide a dial string appended with a semicolon (;) for the DCE to place the call
and go to command mode.
OK
The DCE responds, and the number is dialed.
The call is placed through the phone network in data mode. The modem stays in command mode, and the
application should wait for the OK before sending next command.
Command
Description
AT+FCLASS=8
OK
AT+VGT=128
OK
AT+VLS=7
Put the modem into voice mode.
DCE responds: The modem is now in voice mode.
Set the speaker volume to normal level.
DCE responds: The volume level is set.
Start the speakerphone by attaching the internal speaker and mic to the line;
DCE off-hook.
OK
DCE responds: Speakerphone mode is active. The phone is off hook; dial tone is
audible, and the speaker and mic are ready to use.
The caller can hear ringback or busy signal from the phone being called. If the person at the other end picks up,
the caller and callee converse.
The conversation ends, and the speakerphone user hangs up.
Command
Description
ATH
The application tells the modem to terminate the call with a standard
AT command.
OK
DCE responds: The speakerphone is now on-hook. The speaker and
microphone have been detached from the system, and the modem is now in
data mode (+FCLASS = 0).
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AT Command Set
AT Voice Commands Reference (continued)
Data Addendum
June 15, 1998
Example # 3: Answering a speakerphone call
The speakerphone application is loaded. The modem is initially idle, in data mode. In this mode, the modem is
always screening for incoming calls.
Command
Description
RING
DCE reports ringing from remote station. The user decides to pick-up the
phone, which should initiate the following:
AT+FCLASS=8
Modem enters voice mode.
OK
DCE responds. Now in voice mode.
AT+VGT=128
Speaker volume set to normal.
OK
DCE responds. Volume level is set.
AT+VLS=7
Call is answered: Attach internal speaker and microphone to the line, DCE
off-hook.
OK
DCE responds. Now in speakerphone mode, connected to the line
(call is answered).
Speakerphone user picks up the phone and hears the caller from the other end. Conversation continues for
awhile. When it ends, the speakerphone user hangs up.
Command
Description
ATH
DTE issues standard command to terminate call.
OK
DCE responds. Speakerphone goes on-hook. Speaker and microphone are
detached from system, and modem returns to data mode (+FCLASS=0).
Note 1: When the local phone goes off-hook in the middle of a speakerphone call, the speakerphone
disconnects, and the DCE returns <DLE>-H to the DTE.
Note 2: When the speakerphone is on, call waiting (hold operation) is initiated by:
Command
Description
ATD!
DTE sends hold command to DCE.
OK
DCE responds.
Example # 4: Receiving an incoming FAX call in speakerphone or TAD mode and switching to FAX mode
In this example, the sequence begins at the point of the user or telephone answering device (TAD) taking the
speakerphone off-hook and detecting a FAX calling tone from the other end.
52
Command
Description
<DLE>-c
DCE detects FAX calling tone from the remote FAX and informs the application
by sending DLE-c sequence.
AT+FCLASS=1
Application switches modem out of voice mode, and into FAX mode.
OK
DCE responds. Now in FAX mode, still off-hook and connected to incoming call.
ATA
Application instructs modem to answer FAX call using standard AT commands.
OK
DCE responds. The call is answered, and modem continues with procedures to
establish connection and receive FAX transmission. The application software
will then take care of disconnecting the call when the FAX is done, and returns to
data mode (+FCLASS=0).
Lucent Technologies Inc.
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AT Voice Commands Reference (continued)
Host-Based Controller Modem
AT Command Set
Example # 5: Receiving an incoming data call in speakerphone or TAD mode and switching to data mode
In this example, the sequence begins at the point of the user or telephone answering device (TAD) taking the
speakerphone off-hook and detecting a data calling tone from the other end.
Command
Description
<DLE>-e
DCE detects data calling tone from the remote modem and informs the
application by sending DLE-e sequence.
AT+FCLASS=0
Application switches modem out of voice mode, and into data mode.
OK
DCE responds. Now in data mode, still off-hook and connected to incoming call.
ATA
Application instructs modem to answer data call using standard AT commands.
CONNECT
DCE responds. The call is answered, and modem continues with procedures to
establish connection.
Example # 6: Switching from speakerphone mode to TAD mode
In this example, the sequence begins at the point of the user in speakerphone mode and at some point in time
wants to put the other end in hold. The application may switch to TAD mode in hold state and play some music
wave file to the line.
Command
Description
AT+VLS=1
Applications switches modem out of speakerphone mode and into TAD mode.
OK
DCE responds. Now in TAD mode.
AT+VTX
DTE selects voice transmit mode.
CONNECT
DCE responds.
<Data>
DTE plays music through modem to remote caller.
<DLE><ETX>
DTE indicates end of voice transmit data.
OK
DCE acknowledges switch back to voice command state.
The Application may switch back to speakerphone mode by following the example to switch from TAD mode to
speakerphone mode.
Example # 7: Call screening & recording a message using TAD - IS101 <dle> shielded method.
The TAD application is loaded. The modem is initially idle, in data mode (+FCLASS=0).
Command
Description
RING
DCE reports ringing from remote station.
AT+FCLASS=8
The modem enters voice mode.
OK
DCE responds.
AT+VGT=128
Set speaker volume to normal.
OK
DCE responds.
AT+VSM=132,8000
DTE selects IMA ADPCM with 8.0 kHz sampling rate.
OK
DCE responds.
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AT Command Set
AT Voice Commands Reference (continued)
Data Addendum
June 15, 1998
AT+VSD=128,0
DTE selects normal silence detection sensitivity, and a silence detection interval
of 0 seconds. Disable silence detection.
OK
DCE responds.
<DLE>-R
DCE detects another ring, and notifies DTE.
AT+VLS=1
The modem answers the call.
OK
DCE is off-hook.
The TAD next plays its greeting message, issues a beep, and records the caller's message.
Command
Description
AT+VTX
DTE selects voice transmit mode.
CONNECT
DCE responds.
<Data>
DTE plays greeting through modem to remote caller.
<DLE><ETX>
DTE indicates end of voice transmit data.
OK
DCE acknowledges switch back to voice command state.
AT+VTS=[933,0,120]
DTE annotates greeting message with a 1.2 second beep.
OK
DCE responds.
AT+VSD=128,50
DTE selects normal silence detection sensitivity and a silence detection interval
of 5 seconds. Enable silence detection.
OK
DEC responds.
AT+VLS=5
The speaker is attached to the system, and the modem is off-hook.
OK
DCE is off-hook.
AT+VRX
DTE selects voice receive mode.
CONNECT
DCE agrees.
<Data>
DCE delivers <DLE> shielded voice message to DTE.
The caller leaves a message, and hangs up. The modem detects silence for a specified period of time, and then
notifies the DTE that the message being recorded has ended.
Command
Description
<DLE>-s
DCE issues presumed end of message after silence detection interval has
elapsed.
<DLE>-!
DTE signals end of voice receive state.
<DLE><ETX>
DCE ends voice transmission to DTR, with this code, and returns back to voice
command state.
ATH
DTE issues standard command to terminate call. Speakerphone goes on-hook,
speaker and microphone are detached from system, and modem returns to data
mode (+FCLASS=0).
OK
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DCE responds.
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Data Addendum
June 15, 1998
AT Voice Commands Reference (continued)
Host-Based Controller Modem
AT Command Set
Example # 8: Call screening & recording a message with TAD—using the wave driver to transmit and
receive voice samples
The TAD application is loaded. The modem is initially idle, in data mode (+FCLASS=0).
Command
Description
RING
DCE reports ringing from remote station.
AT+FCLASS=8
The modem enters voice mode.
OK
DCE responds.
AT+VGT=128
Set speaker volume to normal.
OK
DCE responds.
AT+VSD=128,0
DTE selects normal silence detection sensitivity, and a silence detection interval
of 0 seconds. Disable silence detection.
OK
DCE responds.
AT+VSM=129,8000
DTE selects 16-bit linear voice compression with 8.0 kHz sampling rate.
OK
DCE responds.
<DLE>-R
DCE detects another ring, and notifies DTE.
AT+VLS=1
The modem answers call.
OK
DCE is off-hook
The TAD next plays its greeting message, issues a beep, and records the caller's message.
The Application may transmit voice samples using the wave driver. The application may issue
WAVE_OUT_OPEN and WAVE_OUT_WRITE messages to the wave driver.
At the end of the greeting message the application may issue the WAVE_OUT_STOP message to the wave
driver.
AT+VTS=[933,0,120]
DTE annotates greeting message with a 1.2 second beep.
OK
DCE responds.
The Application may receive voice samples using the wave driver. The application may issue
WAVE_IN_OPEN and WAVE_IN_START messages to the wave driver.
AT+VSD=128,50
of
DTE selects normal silence detection sensitivity and a silence detection interval
5 seconds. Enable silence detection.
OK
DCE responds.
AT+VLS=5
Speaker is attached to system, and modem is off-hook.
OK
DCE is off-hook
The caller leaves a message, and hangs up. The modem detects silence for a specified period of time,
and then notifies the DTE.
<DLE>-s
DCE issues presumed end of message after silence detection interval has
elapsed.
At the end of the message the application may issue the WAVE_IN_STOP message to the wave driver.
ATH
DTE issues standard command to terminate call. DCE goes on-hook,
speaker and microphone are detached from system, and modem returns to
data mode (+FCLASS=0).
OK
Version 1.0
DCE response.
Lucent Technologies Inc.
55
Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT DSVD Commands
In order to use the DSVD without a local phone, a ring 3 application can be used to simulate the local phone. In
the absence of such an application, the voice connection needs to be auto enabled. This is accomplished by the
following DSVD custom AT commands:
Command
Description
AT-SSE-OF
AT-SSE-ON
AT-SSE-AC
Simulates virtual offhook event.
Simulates virtual onhook event.
Enables auto call whereby the voice channel is established as soon as the connection
is made with the DSVD modem. There is a single request for each new call.
**Both sides can be programmed in this mode and the voice channel will be activated
by one of the modems. The voice channel will stay enabled until the line is dropped.
AT-SSE-AA
Enables Auto Answer mode allowing the modem to always accept and answer the
voice channel request.
AT-SSE-AM
Enables Auto Multiple Call mode allowing a new connection every 30 seconds with a
5 second delay between calls.
AT-SSE- A Cancels Auto mode
AT-SSE-&W
Writes system audio parameters into the VoiceEeprom registry.
AT-SSE-&R
Reads the current registry parameters from the VoiceEeprom registry.
AT-SSE-SN
Sets silence detection as default mode
AT-SSE-SF
Disables silence detection for the modem
AT-SSE-FN
Sets full duplex mode (with headset) as default
AT-SSE-FF
Disables full duplex mode (with speakerphone), reverting to half duplex mode as
default
AT-SSE+VGT= Sets speakerphone gain level
=?
Displays range available
?
Displays current setting
AT-SSE+VGR= Sets microphone gain level
=?
Displays range available
?
Displays current setting
Standard AT Commands
AT-SSE=
= 0 Disables DSVD
= 1 Enables DSVD
=? Displays range available
? Displays current setting
ATD
Initiates transition from voice to DSVD
ATH
Hang up modem
AT+VNH=
Used in conjunction with ATH command for hook control:
= 0 the DCE will hang up the line when it does not detect a carrier
= 2 the DCE will remain offhook when it detects no carrier to allow the DTE to switch
the DCE to another mode
AT+VIT=
= x to set the inactivity timer
56
Version 1.0
Lucent Technologies Inc.
Host-Based Controller Modem
AT Command Set
1998
Data Addendum
June 15,
V.25ter AT Commands
The +GMx commands are required by the Microsoft PC98 specifications.
Manufacturer Identification (+GMI?)
Read Syntax:
AT+GMI?
Result:
Lucent Data/Fax
Lucent Data/Fax/Voice/VoiceView (depending on product)
Version / Revision Information (+GMR?)
Read Syntax:
AT+GMR?
Result:
Lucent driver version number (e.g. 1.5.05)
Modem Identification (+GMM?)
Read Syntax:
AT+GMM?
Result:
H.324 video-ready rev. 1.0
The chip set supports the following functionalities of the V.25ter for a H.324 call.
✟ The modified function of the ATD command when issued while the analog voice connection is established. This
command will not cause the DTMF dialing and tone detection associated with the usual ATD # command.
✟ The following AT commands, sub-parameters and values are supported
Table 8. V.25ter AT Commands
Command
AT+A8E=<v8o>,
<v8a>,<v8cf>
Subparameter
v8o
v8a
v8cf
Values
1 The default value disables the CI option
while in V.8 origination negotiation.
However, the modem, when initiating the
call as a data call, detects ANSam and is
capable of starting in V.34 mode).
6 Enables DCE control of V.8 and CI
option.
Defined for two conditions: as a
parameter to configure
V.8originating and answering
operation while the DCE is onhook. It initiates an action if the
DCE is off-hook. If enabled, V.8
negotiation does not preclude
simultaneous implementation of
other negotiation means like
V.8bis, V.18, V.32bis.
1 The default value disables the CI option
while in V.8 negotiation. However, the
modem, when answering a call, sends the
ANSam and is capable of starting in V.34
mode)
5 Enables DCE control of V.8 and CI
option.
21h Call function for H.324 calls
c1h Call function for DSVD calls
AT+A8E?
Report current values of subparameters
Report supported ranges of values
AT+A8E=?
57
Description
Version 1.0
Lucent Technologies Inc.
Host-Based Controller Modem
AT Command Set
V.25ter AT Commands (continued)
+A8I:<v8cf><CR>
+A8M=<hexadecimal
coded CM or JM octet
string>
+A8A:<type><CR>
58
Coded CM
or JM octet
Refer to V.8 document for coding.
<type>
1 Indicates V.8 ANSam signal
flags
0 Indicated no ANSam signal detected
Lucent Technologies Inc.
Data Addendum
June 15, 1998
<v8o>, <v8a>, and <v8cf>
This indication is used by an
answering DCE, if +A8E,<v8a> !=0,
to indicate detection of a V.8 CI
signal, and report the recovered
Call Function octet(s). Value
<v8cf> is a hexadecimal code octet
that can take values as shown
above in +A8E command.
Directs the DCE to send a V.8 CM
or JM signal using the specified
hexadecimal coded string.
This indication is used by a calling
DCE, if +A8E <v8o> #0, to indicate
detection of an answering signal.
Version 1.0
Host-Based Controller Modem
AT Command Set
1998
Data Addendum
June 15,
V.80 AT Commands
The chip set supports the Synchronous Access Mode and most of the commands specified in V.80 standards.
The commands are either AT commands issued in the command mode, or in-band commands transmitted in the
data stream. These in-band commands are delimited by the hexadecimal characters EM (or numerically, 19h.)
A) Synchronous Access Mode AT commands
Table 9. V.80 AT Commands
Command
+ES=[<orig_rqst>[,,<ans_fbk
>]]
Subparameters
Orig_rqst
Values
Description
6
Initiate
Synchronous Access Mode
when the data state is
entered.
Control the manner of
operation of the V.42 protocol
in the DCE
ans_fbk
8
Initiate
Synchronous Access Mode
when connection is
completed and Data State
is entered.
Read Syntax command to
query the current values of the
+ES sub-parameters. The
DCE shall transmit a string of
information text to the DTE
consisting of
+ES:<orig_rqst>, ,<ans_fbk>.
Test Syntax command to
obtain all defined values of the
+ES sub-parameters. The
DCE shall transmit a string of
information text to the DTE
consisting of
+ES:( list of supported
<orig_rqst> values), ,(list of
supported <ans_fbk> values).
+ES?
+ES=?
59
Version 1.0
Lucent Technologies Inc.
Host-Based Controller Modem
AT Command Set
V.80 AT Commands (continued)
Table 10. V.80 AT Commands (continued)
Command
Subparameters
+ESA=[<trans_idle>[,<framed trans_idle
_idle>[,,,<crc_type>[,<nrzi_en
>]]]]
framed_idle
Data Addendum
June 15, 1998
Values
Description
0
In transparent submode, DCE transmits
marks (ones) on idle.
0
In Framed submode, DCE transmits
HDLC flags on idle.
1
In Framed submode, DCE transmits
marks (ones) on idle.
crc_type
0
Disable CRC
generation and checking
1
In Framed submode, the 16 bit CRC
specified in V.42 is
generated by the DCE in
the transmit direction and
checked by the DCE in the
receive direction.
nrzi_en
0
Disable NZRI
encoding and decoding.
+ESA?
+ESA=?
+ITF= [<off>[, <on>]]
<off>
Determines the threshold,
in octets, above which the
DCE shall generate a flow
off signal.
<on>
Determines the threshold,
in octets, below which the
DCE shall generate a flow
on signal.
The DCE shall transmit a
string of information to the
DTE consisting of : ITF: (list of
supported <off> values>),(list
of supported <on> values.
+ITF=?
60
Read Syntax command to
query the current values of the
+ESA sub-parameters
Test Syntax command to
obtain all supported values of
the +ESA sub-parameters
Transmit Flow Control
Thresholds. This command
allows the DTE to determine
the input buffer size in the
DCE for data on circuit 103
from the DTE, to control the
thresholds used for flow
control of such data.
Lucent Technologies Inc.
Version 1.0
Host-Based Controller Modem
AT Command Set
Data Addendum
June 15, 1998
AT Commands for Homologation Testing and Debugging
This section lists the homologation testing and debugging commands and homologation parameter values for
different countries.
Table 11. The Homologation Testing and Debugging Commands
Name
Description
%Txx Test Commands
Value

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
Write to EEPROM
Read from EEPROM
Modify homologation parameter
Read homologation parameter
Generate DTMF 0 - 9
Generate DTMF *
Generate DTMF #
Generate DTMF A - D
V.25 answer tone (2100Hz)
V.25 data calling tone (1300Hz)
FAX calling tone (1100Hz)
1800Hz guard tone
V.21 channel 1 mark symbol originate
V.21 channel 1 mark symbol answer
V.21 channel 1 space symbol originate
V.21 channel 1 space symbol answer
V.23 originate channel mark symbol
V.23 answer channel mark symbol
V.23 originate channel space symbol
V.23 answer channel space symbol
61
Comments
AT%T<val>.
Data voice relay on
Data voice relay off
Caller-ID relay on
Caller-ID relay off
Audio codec on
Audio codec off
Shunt relay on
Shunt relay off
ac off-hook relay on
ac off-hook relay off
Loop limit on
Loop limit off
Loop VI on
Loop VI off
Ring impedance on
Ring impedance off
—
—
AT%T19, <loc>, <val> (<loc> and <val>
are in hex)
20
AT%T20, <loc> (<loc> is in hex).
21
AT%T21, <param#>, <param_value>
(<param#> and <param_value> are in
hex as defined in the parameters table).
22
AT%T22, <param#> (<param#> is in hex
as defined in the parameters table).
—
2332
33
—
34
—
—
3538
39
—
40
—
41
—
42
—
90
Set S37 = 3, ATB0
91
Set S37 = 3, ATB0
92
Set S37 = 3, ATB0
93
Set S37 = 3, ATB0
90
Set S37 = 2
91
Set S37 = 2
92
Set S37 = 2
93
Set S37 = 2
Version 1.0
Lucent Technologies Inc.
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 11. The Homologation Testing and Debugging Commands (continued)
Name
Description
%Txx V.22 1200 originate signaling
V.22 1200 answer signaling
V.22bis/V.34 2400 originate signaling*
V.22bis/V.34 2400 answer signaling*
V.32/V.34 4800 originate signaling*
V.32/V.34 4800 answer signaling*
V.32/V.34 7200 originate signaling*
V.32/V.34 7200 answer signaling*
V.32bis/V.34 9600 originate signaling*
V.32bis/V.34 9600 answer signaling*
V.32bis/V.34 12000 originate signaling*
V.32bis/V.34 12000 answer signaling*
V.32bis /V.3414400 originate signaling*
V.32bis/V.34 14400 answer signaling*
V.32ter/V.34 16800 originate signaling*
V.32ter/V.34 16800 answer signaling*
V.32ter/V.34 19200 originate signaling*
V.32ter/V.34 19200 answer signaling*
V.21 Channel 2 mark symbol
V.21 Channel 2 space symbol
V.27 2400 signaling
V.27 4800 signaling
V.29 7200 signaling
V.29 9600 signaling
V.17 12000 signaling
V.17 14400 signaling
Off-Hook
V.34 21600 originate signaling
V.34 21600 answer signaling
V.34 24000 originate signaling
V.34 24000 answer signaling
V.34 26400 originate signaling
V.34 26400 answer signaling
V.34 28800 originate signaling
V.34 28800 answer signaling
V.34bis 31200 originate signaling
V.34bis 31200 answer signaling
V.34bis 33600 originate signaling
V.34bis 33600 answer signaling
•
Value
90
91
90
91
90
91
90
91
90
91
90
91
90
91
90
91
90
91
91
93
76
77
78
79
80
81
82
90
91
90
91
90
91
90
91
90
91
90
91
Comments
Set S37 = 5
Set S37 = 5
Set S37 = 6
Set S37 = 6
Set S37 = 7
Set S37 = 7
Set S37 = 8
Set S37 = 8
Set S37 = 9
Set S37 = 9
Set S37 = 10
Set S37 = 10
Set S37 = 11
Set S37 = 11
Set S37 = 12
Set S37 = 12
Set S37 = 13
Set S37 = 13
Set S37 = 3
Set S37 = 3
—
—
—
—
—
—
This puts the modem in off-hook state.
Set S37 = 14
Set S37 = 14
Set S37 = 15
Set S37 = 15
Set S37 = 16
Set S37 = 16
Set S37 = 17
Set S37 = 17
Set S37 = 18
Set S37 = 18
Set S37 = 19
Set S37 = 19
The default is V.34 with register S28 = 1. To disable, set S28 = 0.
The following example shows how to use the V.22bis 2400 originate signaling homologation test command:
S28 = 0
S37 = 6
AT%T90
62
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Configuring for Different Countries
To configure for a specific country, execute the following AT commands:
AT%T19,0,country_code in HEX (refer to Table 2)
Verify with the ATI9 command (which displays the country name) that the right country has been configured.
Table 12. The Country Codes
Country
USA
Australia
Belgium
Denmark
Finland
France
Germany
The Netherlands
Italy
New Zealand
Norway
Spain
Sweden
Switzerland
United Kingdom
Austria
Japan
People’s Republic of China
Korea
Malaysia
Singapore
Taiwan
Thailand
Indonesia
Portugal
Ireland
Hong Kong
Canada
Mexico
India
Vietnam
Philippines
Greece
Hungary
Turkey
South Africa
Version 1.0
Country_Code in HEX
19
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10
11
12
13
14
15
16
17
18
1A
1B
1C
1D
1E
1F
20
21
22
23
24
Lucent Technologies Inc.
63
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Modifying Homologation Parameters
Once the modem is configured for a country, the homologation parameters shown in Table 3 can be temporarily
altered for that country with the following AT command
AT%T21,par#,param_value
where par# and param_value should be entered in HEX. For example, AT%T21,7,28 sets the call progress
threshold to -40 dB. AT%T22,par# displays the current value of the parameter in HEX. The par# parameter
descriptions are shown in Table 3. The country specific default values (param_value) are shown in Table 4.
Note: If a parameter is changed with the AT%T21 command, the ATZ and AT&F commands do not reset the
homologation parameters to the default values (i.e., the changes made are not reset until the power is turned off).
64
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Homologation Parameters
Table 13. The Homologation Parameters
Par #
Parameter Description
Range
Reference
1
Pulse dial make time
0—255
ATD
2
Pulse dial break time
0—255
ATD
3
Pulse dial digit pattern
ATD
4
DTMF high tone level in dB with implied minus sign
1 = normal, 2 = Sweden,
3 = Norway
0—255
5
Min. DTMF dial speed in ms
0—255
S11
6
Max. DTMF dial speed in ms
0—255
S11
7
Call progress detection threshold in dB with implied minus 0—255
sign
Dial tone delay, i.e., waiting time before dial tone
0—255
detection begins in multiples of 10 ms
Dial tone hole time in ms
0—255
8
9
a
ATD
0—255
b
Delay before resetting ring count to 0, in multiples of 100
ms
Min. ring count for auto-answer
0—255
S0
c
Max. ring count for auto-answer
0—255
S0
d
Min. ring signal period =
1000/(0.833 x Max. ring frequency)
Max. ring signal period =
1000/(0.833 x Min. ring frequency)
Min. ring cadence on time, in multiples of 10 ms
0—255
10
Min ring cadence off time, in multiple of 20 ms
0—255
11
Min. busy cadence on time, in multiples of 10 ms
12
Max. busy cadence on time, in multiples of 10 ms
13
Number of busy cycles required to detect busy condition
0—255; If 0, use the standard
busy detection algorithm;
otherwise, use the country
specific values for cadence
0—255; If 0, use the standard
busy detection algorithm;
otherwise, use the country
specific values for cadence
0—255
14
Min. busy cadence off time, in multiples of 10 ms
15
Max. busy cadence off time, in multiples of 10 ms
16
Continuous # unavailable detection flag
0—255; If 0, use the standard
busy detection algorithm;
otherwise, use the country
specific values for cadence
0—255; If 0, use the standard
busy detection algorithm;
otherwise, use the country
specific values for cadence
0 = disabled, 1 = enabled
17
18
Answer tone validation time in multiples of 10 ms
Blacklisting/delayed flag
0—255
0 = disabled, 1 = enabled
e
f
Version 1.0
Lucent Technologies Inc.
0—255
0—255
ATD
65
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 13. The Homologation Parameters (continued)
Par #
Parameter Description
19
Number of failed attempts allowed before
blacklisting
Troubled call delay in minutes
Ineffective call delay in minutes
Erroneous call delay in minutes
Blacklisting duration in multiple of 10 minutes
1a
1b
1c
1d
1e
1f
Over-current sense validation time in
multiples of 10 ms
Calling tone flag
20
Blind dial flag
21
Busy detect disable (with ATX) flag
22
Guard tone type
23
Bell modes permitted flag
24
Off-hook (ATH1) restrictions
25
Shunt relay on time during off-hook in
multiples of 10 ms.
Hook flash time in multiples of 10 ms
26
27
28
29
2a
2b
2c
2d
2e
2f
30
66
Reference
Range
0—255
ATD
0—255
0—255
0—255
0—255;
0 = only delayed and no blacklisting
255 = no limit (i.e., till power turned off)
0—255, 0 = current sense disabled.
ATD
ATD
ATD
ATD
0 = disabled
1 = enabled, and disable with ^ dial
modifier permitted
2 = enabled, and disable with ^ dial
modifier not permitted
0 = not permitted
1 = permitted
2 = permitted with speaker on
0 = not permitted
1 = permitted
0 = not present & adjustable
1 = 550 Hz, 2 = 1800 Hz
0 = not permitted
1 = permitted
0 = no restrictions
1 = restricted by S7 duration
2 = not allowed
0—255
0 = shunt relay disabled
0—255
0 = hook flash not allowed
0—65
0—65
0—65
0—65
0—65
0—65
1—65
ATD , S35
Min. blind dial pause in seconds
Max. blind dial pause in seconds
Min. no answer time-out in seconds
Max. no answer time-out in seconds
Min. dial pause time in seconds
Max. dial pause time in seconds
Min. no carrier disconnect time in multiples of
100 ms
Max. no carrier disconnect time in multiples of 1—255
100 ms
Transmit level in dB with implied minus sign
Dial modifier validation
ATD , ATX
ATD , ATX
S37
ATB
ATH1
ATD
ATD
S6
S6
S7
S7
S8
S8
S10
S10
0—255
0 = if an invalid dial modifier is found, treat the
entire dial string as null (no digits dialed)
1 = ignore invalid dial modifiers
Lucent Technologies Inc.
ATA, ATD
Version 1.0
ATD
—
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 13. The Homologation Parameters (continued)
Par #
31
32
33
Parameter Description
Range
Reference
0—255
0 = halfwave, 1 = fullwave
0—255
—
—
ATD
0—255
255 = not applicable
0—255
ATD
35
TAD receive gain
Half/full wave ring detection
Number of failed attempts allowed in first stage
delayed dialing
Number of all failed attempts ( to any number)
allowed before any further dial attempts are blocked
Erroneous call increment count
36
37
38
39
Dial tone validation time in multiples of 100 ms
Busy tone detection during dial tone detection flag
DTMF high and low tone level difference in dB
Local phone detection in speakerphone
0—255
0 = not required, 1 = required
0—255
0 = enabled; 1 = disabled
ATD
ATD
—
—
3a
3b
Pulse dialing flag
Dial tone/call progress filter index
0 = enabled; 1 = disabled
0 = 340—560 Hz
1 = 310—485 Hz
2 = 363—502 Hz
3 = 276—504 Hz
4 = 415—460 Hz
5 = 310—640 Hz
ATD
—
3c
3d
3e
0—255
0 = permitted, 1 = not permitted
0—255
—
ATD
ATD
42
Dial tone detection threshold in dB
ABCD dialing permitted flag
Comma pause duration limit in seconds. (If there are
multiple commas between digits, the total pause
duration is limited to the duration set by this
parameter).
TAD transmit level in dB
Data/FAX carrier receive threshold in dB. There is a 6
dB offset in DSP. This parameter value should set to:
(required threshold [6 dB] DAA gain)
No dialtone time-out duration while detecting dialtone
with W dial modifier, in seconds
FAX/Data answer tone detection threshold in dB
43
44
45
Dialtone level (absolute value)
FAX receive threshold in dB
Pulse and tone dial in same dial string permitted flag
0—255
0—255
0 = permitted, 1 = not permitted
46
47
48
49
Ringer impedance relay flag
DC loop V/I characteristics relay flag
DC loop limiting relay flag
Real/complex impedance
0 = off, 1 = on
0 = off, 1 = on
0 = off, 1 = on
4a
Mercury register CIOCA MSB value—receive gain
This parameter is relevant only when a Mercury
line codec is used.
34
3f
40
41
Version 1.0
ATD
0—255
0—255
—
—
0—255
ATD
0—255
—
—
—
ATD
0x0X = real, Tx & Rx gains set by mercury
internal components. X = Don’t care
0x10 = real, Tx gain set by mercury
internal components & Rx gain set by
external components.
0x12 = complex, Tx gain set by mercury
internal components & Rx gain set by
external components. Mercury internal
switch used to select complex impedance.
Lucent Technologies Inc.
—
67
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par #
Parameter Description
4b
Mercury register CIOCA LSB value—hybrid,
impedance, etc.
4c
Mercury register CIOCB MSB value—transmit gain
4d
Mercury register CIOCB LSB value—BOM control
4e
TAD Mercury register CIOCB MSB value—transmit
gain in TAD mode
FDSP Mercury register CIOCB MSB value—transmit
gain in speakerphone mode
4f
68
Data Addendum
June 15, 1998
Range
This parameter is relevant only when a Mercury
line codec is used.
This parameter is relevant only when a Mercury
line codec is used.
This parameter is relevant only when a Mercury
line codec is used.
This parameter is relevant only when a Mercury
line codec is used.
This parameter is relevant only when a Mercury
line codec is used.
Lucent Technologies Inc.
Version 1.0
Reference
—
—
—
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Country Specific Homologation Parameters
Country specific values for the homologation parameters are shown in Table 14.
Note: The values listed in Table 14 are typical values and change based on OEM preferences.
Table 14. The Country Specific Homologation Parameters
Par. #
1
2
3
4
5
6
7
8
9
a
b
c
d
e
f
10
11
12
13
14
15
16
17
18
19
1a
1b
1c
1d
1e
1f
20
21
22
23
Version 1.0
NA
36
64
1
6
50
150
43
0
255
60
1
255
18
80
15
30
18
60
4
18
60
0
10
0
5
1
1
1
12
0
1
1
1
0
1
Australia
33
64
1
8
80
150
43
0
100
80
2
6
21
92
15
30
0
0
4
0
0
1
80
1
10
1
1
120
12
0
1
1
1
0
1
Belgium
33
67
1
6
90
90
37
0
30
80
2
5
18
80
15
30
40
60
4
40
60
0
15
1
4
1
1
1
6
0
1
1
1
0
1
Denmark
36
64
1
4
90
90
39
0
50
100
2
4
18
80
15
30
0
0
4
0
0
1
32
1
10
1
1
1
255
0
2
1
1
0
1
Lucent Technologies Inc.
Finland
40
60
1
8
90
90
43
0
28
100
1
4
18
80
15
30
10
66
4
10
65
0
20
1
4
1
1
60
6
0
2
1
1
0
1
France
34
67
1
6
90
90
38
5
40
70
2
3
15
66
24
30
40
63
2
37
63
0
45
1
6
1
1
1
255
0
1
1
1
2
0
Germany
41
60
1
13
90
90
43
0
50
60
1
6
20
63
15
30
9
55
4
20
60
0
20
1
12
1
1
1
6
0
1
1
1
0
1
69
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
24
25
26
27
28
29
2a
2b
2c
2d
2e
2f
30
31
32
33
34
35
36
37
38
39
3a
3b
3c
3d
3e
3f
40
41
42
43
44
45
46
47
48
49
4a
4b
4c
70
NA
0
5
50
2
65
1
255
2
65
1
255
10
0
3
0
1
255
1
25
1
2
0
0
5
43
0
255
10
37
50
43
0
43
0
0
0
0
0x00
0x88
0x80
0x6b
Australia
0
30
50
2
5
30
60
2
5
1
255
9
0
3
0
1
255
1
25
0
2
0
0
1
43
0
30
10
37
50
43
0
43
0
1
1
0
0x12
0x00
0x06
0x6b
Belgium
Denmark
0
0
5
5
12
9
4
4
4
4
30
30
60
60
4
2
8
20
1
1
255
255
9
9
1
1
3
3
0
0
1
1
255
255
1
1
8
25
0
0
2
2
0
0
0
1
4
0
24
38
0
0
30
30
6
10
37
37
50
50
43
43
0
0
43
43
0
0
1
0
0
0
0
0
0x10
0x10
0x00
0x00
0x0c
0x0c
0x6b
0xaa
Lucent Technologies Inc.
Finland
0
5
9
4
4
30
60
4
8
1
255
9
1
3
0
1
255
1
25
0
2
0
0
1
39
0
30
10
37
50
43
0
43
0
0
0
0
0x10
0x00
0x0c
0x6b
France
0
5
27
2
2
30
60
2
2
1
255
9
1
3
0
0
255
1
16
0
2
0
0
1
36
0
30
10
32
10
36
0
43
0
1
0
1
0x10
0x00
0x0c
0x6b
Version 1.0
Germany
0
5
18
4
4
30
60
4
6
1
255
14
1
3
0
2
12
1
19
0
3
0
0
5
43
0
30
12
37
50
43
0
43
1
1
1
0
0x12
0x00
0x06
0x6b
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par. #
4d
4e
4f
Version 1.0
NA
0x1e
0x13
0xcd
Australia
0x17
0x13
0xcd
Belgium
0x1e
0x13
0xcd
Denmark
0x1e
0x13
0xcd
Lucent Technologies Inc.
Finland
0x1e
0x13
0xcd
France
0x1e
0x13
0xcd
Germany
0x17
0x13
0xcd
71
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
72
1
Netherlands
40
Italy
41
New Zeal.
33
Norway
36
Spain
33
Sweden
40
Switzerland
40
2
60
65
67
64
67
60
60
3
1
1
3
1
1
2
1
4
8
6
8
8
6
8
3
5
90
90
90
90
90
90
90
6
90
90
90
90
90
90
90
7
30
50
43
40
43
50
37
8
0
0
0
0
0
0
0
9
30
10
30
50
120
50
30
a
80
80
80
100
80
100
80
b
2
1
3
1
1
2
2
c
4
4
4
4
4
2
9
d
44
18
18
18
18
23
18
e
80
80
80
80
80
60
60
f
15
15
15
15
75
15
15
10
30
30
30
30
30
30
30
11
15
0
0
10
0
20
8
12
65
0
0
66
0
30
80
13
4
2
4
2
4
4
2
14
11
0
0
10
0
20
8
15
65
0
0
65
0
85
80
16
0
0
1
1
0
0
0
17
20
20
80
32
20
12
12
18
1
1
0
1
0
1
1
19
5
4
5
10
4
10
5
1a
1
1
1
1
1
1
1
1b
1
1
1
1
1
1
1
1c
1
1
1
1
1
1
1
1d
6
6
12
3
6
6
6
1e
0
0
0
0
0
0
0
1f
2
1
1
2
2
2
1
20
1
1
1
1
1
1
1
21
1
0
1
1
1
1
1
22
2
2
0
2
2
2
2
23
1
1
1
1
1
1
1
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
24
Netherlands
0
Italy
2
New Zeal.
0
Norway
0
Spain
0
Sweden
0
Switzerland
0
25
27
5
5
5
5
5
5
26
10
9
50
10
10
10
10
27
5
4
4
4
4
4
4
28
5
10
4
4
4
4
4
29
30
30
30
30
30
30
30
2a
60
60
60
60
60
60
60
2b
2
2
4
4
5
4
4
2c
2
65
8
8
5
8
8
2d
1
1
1
1
1
1
1
2e
255
255
255
255
255
255
255
2f
9
9
9
9
9
9
9
30
1
1
0
1
1
1
1
31
3
3
3
3
3
3
3
32
0
0
0
0
0
0
0
33
1
1
1
1
1
0
1
34
15
255
255
255
255
10
24
35
1
1
1
1
1
1
6
36
15
15
25
7
12
4
10
37
0
0
0
0
0
0
1
38
2
2
2
2
2
3
2
39
0
0
0
0
0
1
0
3a
0
0
0
1
0
1
0
3b
5
4
1
0
5
3
0
3c
27
40
43
39
41
36
39
3d
0
0
0
0
0
0
0
3e
30
30
30
30
30
30
30
3f
10
10
10
10
10
14
7
40
37
36
37
37
37
37
37
41
50
50
50
50
11
50
50
42
46
43
43
43
43
43
43
43
9
0
0
0
0
0
0
44
43
43
43
43
43
43
43
45
1
0
0
0
0
0
0
46
0
1
1
0
1
1
1
47
0
0
1
0
0
1
1
48
0
0
0
0
0
0
0
49
0x10
0x10
0x10
0x10
0x10
0x10
0x12
Version 1.0
Lucent Technologies Inc.
73
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par. #
74
Data Addendum
June 15, 1998
4a
Netherlands
0x00
Italy
0x00
New Zeal.
0x00
Norway
0x00
Spain
0x00
Sweden
0x00
Switzerland
0x00
4b
0x0c
0x0c
0x0c
0x0c
0x0c
0x0c
0x06
4c
0x6b
0x6b
0x6b
0x6b
0x6b
0x6b
0x6b
4d
0x1e
0x1e
0x16
0x1e
0x1e
0x16
0x17
4e
0x13
0x13
0x13
0x13
0x13
0x13
0x13
4f
0xcd
0xcd
0xcd
0xcd
0xcd
0xcd
0xcd
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
1
UK
34
Austria
40
Japan
34
China
36
Korea
32
Malaysia
34
Singapore
32
2
68
60
66
64
64
66
64
3
1
1
1
1
1
1
1
4
6
6
7
6
6
7
7
5
90
90
50
50
50
70
70
6
90
90
150
150
150
150
150
7
43
45
43
43
43
43
43
8
0
0
0
0
0
0
0
9
50
100
250
50
50
30
30
a
60
80
80
60
60
80
80
b
1
1
1
1
1
1
1
c
4
4
15
15
15
15
15
d
18
18
18
18
18
18
18
e
80
80
80
80
80
80
80
f
15
15
15
15
15
15
15
10
30
30
30
30
30
30
30
11
0
0
0
0
0
0
0
12
0
0
0
0
0
0
0
13
4
2
4
4
4
4
4
14
0
0
0
0
0
0
0
15
0
0
0
0
0
0
0
16
1
0
0
0
0
1
1
17
80
20
50
80
80
80
80
18
1
0
1
0
0
1
1
19
5
6
5
5
5
10
10
1a
1
1
1
1
1
1
1
1b
1
1
1
1
1
1
1
1c
1
1
1
1
1
1
1
1d
12
12
0
12
12
0
0
1e
0
0
0
0
0
0
0
1f
1
2
1
1
1
0
0
20
1
1
1
1
1
1
1
21
1
1
1
1
1
1
1
22
2
0
0
0
0
0
0
23
1
1
1
1
1
1
1
24
0
0
0
0
0
0
0
25
0
5
5
5
5
5
5
Version 1.0
Lucent Technologies Inc.
75
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
76
26
UK
7
Austria
9
Japan
50
China
50
Korea
50
Malaysia
9
Singapore
9
27
4
4
4
2
4
3
3
28
4
4
255
65
65
20
20
29
30
30
35
35
35
5
5
2a
60
60
59
65
48
35
35
2b
4
4
2
2
2
2
2
2c
8
6
65
65
65
65
65
2d
1
1
1
1
1
1
1
2e
255
255
255
255
255
255
255
2f
9
9
14
10
11
11
11
30
0
1
0
0
0
0
0
31
3
3
3
3
3
3
3
32
0
0
0
0
0
0
0
33
1
1
0
1
1
0
0
34
255
6
255
255
255
255
255
35
1
1
1
1
1
1
1
36
25
8
25
25
25
25
25
37
0
0
0
0
0
0
0
38
3
2
2
2
2
2
2
39
0
0
0
0
0
0
0
3a
0
0
0
0
0
0
0
3b
3
6
1
1
1
1
1
3c
43
45
43
43
43
43
43
3d
0
0
0
0
0
0
0
3e
30
30
30
30
30
30
30
3f
10
10
13
10
10
10
10
40
37
37
37
37
37
37
37
41
50
50
50
50
48
35
35
42
43
43
43
43
43
43
43
43
0
0
0
0
0
0
0
44
43
43
43
43
43
43
43
45
0
0
0
0
0
0
0
46
1
1
1
1
1
1
1
47
1
0
0
0
0
0
0
48
0
0
0
0
0
0
0
49
0x12
0x10
0x00
0x10
0x10
0x10
0x10
4a
0x00
0x00
0x88
0x00
0x00
0x00
0x00
4b
0x06
0x0c
0x80
0x0c
0x0c
0x0c
0x0c
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par. #
4c
UK
0x6b
Austria
0x6b
Japan
0x6b
China
0x6b
Korea
0x6b
Malaysia
0x6b
Singapore
0x6b
4d
0x17
0x1e
0x1e
0x1e
0x1e
0x1e
0x1e
4e
0x13
0x13
0x13
0x13
0x13
0x13
0x13
4f
0xcd
0xcd
0xcd
0xcd
0xcd
0xcd
0xcd
Version 1.0
Lucent Technologies Inc.
77
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
78
1
Taiwan
36
Thailand
40
Indonesia
36
Ireland
34
Portugal
33
Hong Kong
36
2
64
60
64
67
67
64
3
1
1
1
1
1
1
4
6
6
6
6
6
6
5
50
50
50
90
90
50
6
150
150
150
90
90
150
7
43
35
43
43
43
43
8
0
0
0
0
0
0
9
50
30
50
50
250
50
a
60
80
60
60
60
60
b
1
1
1
1
1
1
c
15
15
15
4
4
15
d
18
18
18
18
18
18
e
80
80
80
80
86
80
f
15
15
15
15
24
15
10
30
30
30
30
30
30
11
0
0
0
0
0
0
12
0
0
0
0
0
0
13
4
4
4
4
4
4
14
0
0
0
0
0
0
15
0
0
0
0
0
0
16
0
0
0
1
0
0
17
80
5
80
9
30
80
18
0
0
0
1
0
0
19
5
5
5
4
5
5
1a
1
1
1
1
1
1
1b
1
1
1
1
1
1
1c
1
1
1
1
1
1
1d
12
12
12
6
6
12
1e
0
0
0
0
0
0
1f
1
0
1
1
1
1
20
1
1
1
1
1
1
21
1
1
1
1
1
1
22
0
0
0
2
0
0
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
23
Taiwan
1
Thailand
1
Indonesia
1
Ireland
1
Portugal
1
Hong Kong
1
24
0
0
0
0
0
0
25
5
5
5
0
5
5
26
50
9
50
7
20
50
27
3
2
2
4
4
2
28
65
10
65
4
4
65
29
35
35
35
10
30
35
2a
65
65
65
39
60
65
2b
2
2
2
4
2
2
2c
65
10
65
8
5
65
2d
1
1
1
1
1
1
2e
255
255
255
255
255
255
2f
10
10
10
9
9
10
30
0
0
0
0
1
0
31
3
3
3
3
3
3
32
0
0
0
0
0
0
33
1
1
1
1
0
1
34
255
255
255
255
255
255
35
1
1
1
1
1
1
36
25
25
25
25
25
25
37
0
0
0
0
0
0
38
2
2
2
3
2
2
39
0
0
0
0
0
0
3a
0
0
0
0
0
0
3b
1
1
1
2
3
1
3c
43
35
43
43
35
43
3d
0
0
0
0
1
0
3e
30
30
30
30
30
30
3f
10
10
10
10
10
10
40
37
37
37
33
37
37
41
50
50
50
39
50
50
42
43
43
43
43
43
43
43
0
0
0
0
0
0
44
43
43
43
43
43
43
45
0
0
0
0
0
0
46
1
1
1
1
1
1
47
0
0
0
1
0
0
48
0
0
0
0
0
0
Version 1.0
Lucent Technologies Inc.
79
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par. #
80
Data Addendum
June 15, 1998
49
Taiwan
0x10
Thailand
0x10
Indonesia
0x10
Ireland
0x12
Portugal
0x10
Hong Kong
0x10
4a
0x00
0x00
0x00
0x00
0x00
0x00
4b
0x0c
0x0c
0x0c
0x06
0x0c
0x0c
4c
0x6b
0x6b
0x6b
0x6b
0x6b
0x6b
4d
4e
0x1e
0x1e
0x1e
0x17
0x1e
0x1e
0x13
0x13
0x13
0x13
0x13
0x13
4f
0xcd
0xcd
0xcd
0xcd
0xcd
0xcd
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
Canada
Mexico
India
Vietnam
Philippines
1
36
36
36
36
36
2
64
64
64
64
64
3
1
1
1
1
1
4
6
6
6
6
6
5
50
50
50
50
50
6
150
150
150
150
150
7
43
43
43
43
43
8
0
0
0
0
0
9
255
50
50
50
50
a
60
60
60
60
60
b
1
1
1
1
1
c
255
15
15
15
15
d
18
18
18
18
18
e
80
80
80
80
80
f
15
15
15
15
15
10
30
30
30
30
30
11
18
0
0
0
0
12
60
0
0
0
0
13
4
4
4
4
4
14
18
0
0
0
0
15
60
0
0
0
0
16
0
0
0
0
0
17
10
80
80
80
80
18
0
0
0
0
0
19
5
5
5
5
5
1a
1
1
1
1
1
1b
1
1
1
1
1
1c
1
1
1
1
1
1d
12
12
12
12
12
1e
0
0
0
0
0
1f
1
1
1
1
1
20
1
1
1
1
1
21
1
1
1
1
1
22
0
0
0
0
0
Version 1.0
Lucent Technologies Inc.
81
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Table 15. The Country Specific Homologation Parameters (continued)
Par. #
82
23
Canada
1
Mexico
1
India
1
Vietnam
1
Philippines
1
24
0
0
0
0
0
25
5
5
5
5
5
26
50
50
50
50
50
27
2
2
2
2
2
28
65
65
65
65
65
29
1
35
35
35
35
2a
255
65
65
65
65
2b
2
2
2
2
2
2c
65
65
65
65
65
2d
1
1
1
1
1
2e
255
255
255
255
255
2f
10
10
10
10
10
30
0
0
0
0
0
31
3
3
3
3
3
32
0
0
0
0
0
33
1
1
1
1
1
34
255
255
255
255
255
35
1
1
1
1
1
36
25
25
25
25
25
37
1
0
0
0
0
38
2
2
2
2
2
39
0
0
0
0
0
3a
0
0
0
0
0
3b
5
1
1
1
1
3c
43
43
43
43
43
3d
0
0
0
0
0
3e
255
30
30
30
30
3f
10
10
10
10
10
40
37
37
37
37
37
41
50
50
50
50
50
42
43
43
43
43
43
43
0
0
0
0
0
44
43
43
43
43
43
45
0
0
0
0
0
46
0
1
1
1
1
47
0
0
0
0
0
48
0
0
0
0
0
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Par. #
49
Canada
0
Mexico
0x10
India
0x10
Vietnam
0x10
Philippines
0x10
4a
0x88
0x00
0x00
0x00
0x00
4b
0x80
0x0c
0x0c
0x0c
0x0c
4c
0x6b
0x6b
0x6b
0x6b
0x6b
4d
4e
0x1e
0x1e
0x1e
0x1e
0x1e
0x13
0x13
0x13
0x13
0x13
4f
0xcd
0xcd
0xcd
0xcd
0xcd
Version 1.0
Lucent Technologies Inc.
83
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Country Specific S Register Defaults
Note: The values listed in Table 15 are typical values and change based on OEM preferences.
Table 156. Country Specific Defaults for S Registers
S Reg.
Australia
Belgium
Denmark
Finland
France
Germany
s0
000
000
000
000
000
000
s6
004
004
004
004
002
004
s7
050
050
050
050
140
050
s8
002
004
002
004
002
004
s10
020
020
020
002
002
020
s11
095
090*
090*
090*
090*
090*
s30
000
000
000
000
000
000
s35
001
001
001*
001*
001
001
* Changing this value with the ATS command is not permitted.
Table 16. Country Specific Defaults for S Registers (continued)
S Reg.
Netherlands
Italy
New Zeal.
Norway
Spain
Sweden
s0
000
000
000
000
000
000
s6
005
004
004
004
004
004
s7
050
050
050
050
050
050
s8
002
002
004
004
005
004
s10
020
020
015
009
020
020
s11
090*
090*
090
090*
090*
090*
s30
000
000
000
000
000
000
s35
001*
001
001
001*
001*
001*
* Changing this value with the ATS command is not permitted.
Table 16. Country Specific Defaults for S Registers (continued)
S Reg.
Switzerland
UK
Austria
Japan
China
Korea
s0
000
000
000
000
000
000
s6
004
004
004
004
002
004
s7
050
050
050
050
050
045
s8
004
004
004
002
002
002
s10
020
020
020
020
020
020
s11
090*
090
090*
095
095
095
s30
000
000
000
000
000
000
s35
001
001
001*
000
001
001
* Changing this value with the ATS command is not permitted.
84
Lucent Technologies Inc.
Version 1.0
Data Addendum
Host-Based Controller Modem
June 15, 1998
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Table 16. Country Specific Defaults for S Registers (continued)
S Reg.
Malaysia
Singapore
Taiwan
Thailand
Indonesia
Portugal
s0
000
000
000
000
000
000
s6
003
003
003
002
002
004
s7
035
035
050
050
050
050
s8
002
002
002
002
002
002
s10
020
020
020
020
020
002
s11
095
095
095
095
095
090*
s30
000
000
000
000
000
004
s35
000
000
001
000
001
001
* Changing this value with the ATS command is not permitted.
Table 16. Country Specific Defaults for S Registers (continued)
S Reg.
NA
Ireland
Hong Kong
Mexico
India
Vietnam
Philippines
s0
000
000
000
000
000
000
000
s6
002
004
002
002
002
002
002
s7
050
039
050
050
050
050
050
s8
002
004
002
002
002
002
002
s10
020
020
020
020
020
020
020
s11
095
090
095
095
095
095
095
s30
000
000
000
000
000
000
000
s35
000
001
001
000
000
000
000
Version 1.0
Lucent Technologies Inc.
85
Host-Based Controller Modem
AT Command Set
AT Commands for Homologation Testing and Debugging (continued)
Data Addendum
June 15, 1998
Changing the DTMF Dial Speed Default Value
To change the DTMF dial speed default value, follow these steps:
1. Set par# 5 (Min DTMF dial speed) and par# 6 (Max DTMF dial speed) to the required DTMF dial speed with
the AT%T21 command.
2. Issue an ATZ command.
3. Issue an ATS11? command to display the new value. The following example shows how to set the current
default value from 80 to 85:
ATS11?
080
OK
AT%T21,5,55
OK
AT%T21,6,55
OK
ATZ
OK
ATS11?
085
OK
If you do not want to change both par#5 and par#6, set par#5 to the new default DTMF duration if you are
increasing the default value from the current value; otherwise, set par#6 to the new default DTMF duration.
The following two example show how to set one parameter:
1. This example shows how to set the current default value of S11 from 80 to 85:
ATS11?
080
OK
AT%T21,5,55
OK
ATZ
OK
ATS11?
085
OK
2. This example shows how to set the current default value of S11 from 85 to 80:
ATS11?
085
OK
AT%T21,6,50
OK
ATZ
OK
ATS11?
080
OK
86
Lucent Technologies Inc.
Version 1.0
For additional information, contact your Microelectronics Group Account Manager or the following:
INTERNET: http://www.lucent.com/micro
U.S.A.:
Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106), e-mail [email protected]
ASIA PACIFIC:
Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
Tel. (65) 778 8833, FAX (65) 777 7495
JAPAN:
Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku,Tokyo 141, Japan,
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
For data requests in Europe:
MICROELECTRONICS GROUP DATALINE: Tel. (44) 1734 324 299, FAX (44) 1734 328 148
For technical inquiries in Europe:
CENTRAL EUROPE: (49) 89 95086 0 (Munich), NORTHERN EUROPE: (44) 1344 865 900 (Bracknell UK),
FRANCE: (33) 1 47 67 47 67 (Paris), SOUTHERN EUROPE: (39) 2 6601 1800 (Milan) or (34) 1 807 1700 (Madrid)
For Technical inquires in Taiwan:
Microelectronics, Lucent Technologies Taiwan Modem Design Center (886) 2-547-7016
ucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No
ghts under any patent accompany the sale of any such product(s) or information.
Copyright  1998 Lucent Technologies Inc.
All Rights Reserved
Printed in U.S.A.
June 1998
XX-XXXDMOD
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