Samsung DCS-408 Specifications

Publication Information
Samsung Electronics reserves the right without prior notice to revise information in this
publication for any reason.
Samsung Electronics also reserves the right without prior notices to make changes in
design or components of equipment as engineering and manufacturing may warrant.
Copyright 2000
Samsung Electronics Co. Ltd.
All rights reserved. No part of this manual may be reproduced in any form or any means graphic, electronic or mechanical, including recording, taping, photocopying or information
retrieval systems - without express written permission of the publisher of this material.
February, 2000
Table of Contents
Chapter 1 System Overview.................................................................... 1-1~1-4
Introduction ...................................................................................................................... 1-1
Size and configuration ..................................................................................................... 1-2
408 Base KSU
............................................................................................................... 1-2
Technology .................................................................................................................... 1-2
Programming .................................................................................................................... 1-3
Chapter 2 Hardware Descriptions............................................................ 2-1~2-6
DCS-408 Basic key service unit ....................................................................................... 2-1
408 Base key service unit ............................................................................................ 2-1
System Capacity .............................................................................................................. 2-1
System View .................................................................................................................... 2-2
Front View of DCS-408 ................................................................................................ 2-2
DCS-408 System Port(After Removing side cover) ...................................................... 2-2
Bottom View of DCS-408 ............................................................................................. 2-3
System Specification ........................................................................................................ 2-4
Chapter 3 Features ............................................................................... 3-1~3-36
System features ............................................................................................................ 3-1
System features descriptions ........................................................................................... 3-5
Station features ........................................................................................................... 3-23
Station features descriptions ....................................................................................... 3-25
Display features ........................................................................................................... 3-32
Display features descriptions ...................................................................................... 3-33
Chapter 1
System Overview
DCS-408 Digital Communication System is a digital telephone system designed for a small
-sized business. The system employs the very latest Digital Signal Processors (DSP)
DCS-408 is easy to install and maintain, convenient to use and provides a variety of
features. Two types of telephones can be connected to the system: proprietary digital
phones called “Keysets” connect to digital line interface (DLI) ports; standard telephone
sets, generally called “single line telephones,” connect to single line interface (SLI) ports.
In addition, DLI station ports are used to connect peripheral devices such as door phone
interface modules (DPIMs). Miscellaneous circuits are provided to allow such optional
features as music on hold, background music, general-purpose dry contact, and common
1. 'DCS' is the general term used in the text to refer to Samsung digital systems.
Any differences between the systems are indicated under separate headings
'DCS', 'DCS Compact', 'DCS Compact II' ,’DCS-816’, and 'DCS-408'.
2. It is not possible to expand from DCS-408 to other DCS systems.
Chapter 1
System Overview
Size and configuration
408 Base KSU
The DCS-408 system consists of the Basic Key Service Unit (KSU), 4 analog trunk circuits
and 8 station circuits. The KSU is a single cabinet, and in its basic form has 4 trunks ports
and 8 station ports: four (4) analog trunk circuits, four (4) keyset ports and four (4) single
line telephone (SLT) ports. Additionally, the KSU contains two miscellaneous ports for
general-purpose dry contact and external music source.
Two types of telephones can be connected to the system: proprietary digital stations called
“keysets” that connect to Digital Line Interface (DLI) ports and standard telephone sets,
generally called “single line telephones”, that connect to Single Line Interface (SLI) ports.
The system maximum capacity is as follows :
Analog trunk
8 (4 keysets, 4 SLTs)
Music channel
General-Purpose Dry Contact
1 (Internal or External)
SIO port
1 (RS-232C)
The systems operate using stored program control. This program is stored in EPROM
chips. All specific customer data is stored in random access memory (RAM) which is
protected against the loss of AC power to the system by an on-board battery backup system.
DCS-408 uses distributed processing. The primary system processor is a 16-bit Motorola
MC68000 operating at a clock speed of 8 MHz. Secondary processing is done also in the
keysets. The digital keyset uses a Hitachi H8 processor for data communication within the
DCS-408 is self-configuring. This means that when the power is switched ON, the system
reads the types and locations of all installed cards and telephones and assigns default data
to them. This data provides for system operation within seconds after power is switched
ON. All trunks and stations are assigned according to the default numbering plan. This
numbering plan is flexible and may be changed to suit customer requirements. The
installing technician customizes these default data to meet the end user’s requirements.
The systems can be programmed from any LCD display keyset without interrupting
system operation. There are three levels of programming: technician (or system),
customer and station. The technician (system) level has access to all programs and can
allow the customer access to system programs as needed. Technician and customer access
is controlled by different security passcodes and access procedures.
Chapter 1
System Overview
(This page is left blank intentionally.)
Chapter 2
Hardware Descriptions
DCS-408 Basic key service unit System Structure
The DCS-408 Key Service Unit is a single cabinet containing the following :
Base Key Service Unit
y A power supplies.
y Processing, memory and switching :
CPU (68EC000), 1 Mbytes program memory, 256 Kbytes data memory with a backup super
capacitor, real-time clock.
y Four (4) digital keyset interfaces.
y Four (4) single line telephone interfaces with loop-disconnect facilities.
y One (1) External Music source interface for Music-on-Hold and Background Music.
y One (1) General-purpose Dry Contact
y One (1) SIO connection for RS-232C connection.
System Capacity
Analog trunk
4 lines
8 circuits (4 circuits for digital keyset and 4 circuits for analog
Music-on-hold/ Background
music channel
1 (internal or external)
General-purpose Dry Contact
SIO port
The station circuits have a fixed configuration consisting of 4 circuits for digital
keyphones and 4 circuits for analog telephones , and the circuit configuration may
not be modified.
Chapter 2
Hardware descriptions
System View
Front View of DCS-408 System
Front cover
Side cover
DCS-408 System Port (After Removing Side Cover)
CO1.2/BRI1 port (Trunk Port:1-2)
CO3.4/BRI2 port (Trunk Port:3-4)
Memory backup switch
SLI ports (Single line interface ports:25-28)
SIO port (For RS-232C)
DLI ports (Digital line interface ports:21-24)
MISC port (General-purpose Dry Contact /
External music source interface)
Battery port
Bottom View of DCS-408 System
Groove for ground connection cable requirements
SIO port (for RS-232C)
Groove used for hanging the system on a wall
Power connector
Power switch
Chapter 2
Hardware descriptions
Power Specifications
AC Input
220 VAC, 60Hz
Maximum Power
44 Watts
Environment Specifications
Operating Temperature
Relative Humidity
Keeping Temperature
Line Specifications
2-line cable, maximum 400M(1300Ft) (AWG #24)
Analog Telephone
2-line cable, maximum 1KM(3000Ft) (AWG #24)
2-line cable, maximum 300M(1000Ft) (AWG #24)
2-line cable, maximum 100M(330Ft) (AWG #24)
Printer and KSU
RS-232C cable, 15M(50 Ft)
External music source input characteristics
Impedance of 600 ohm, maximum 350 mV
Chapter 2
Hardware descriptions
(This page is left blank intentionally.)
Chapter 3
System features
y Account Code Entry
y All Call Voice Page
y Attention Tone
y Authorization Codes
y Automatic Hold
y Background Music
y Branch Groups
y Call Forwarding
All Calls
No Answer
Busy/No Answer
Follow Me
y Call Waiting/Camp On
y Chain Dialing
y Class of Service
y Common Bell Control
y Conference
Add On(5 Parties)
y Data Security
y Direct in Lines
y Direct Inward System Access(DISA)
y Direct Trunk Selection
y Directory Names
y DISA Security
y Distinctive Ringing
y Door Lock Release(Programmable)
y Call Hold (Exclusive)
y Executive Barge-In(Override)
With Warning Tone
Without Warning Tone
y Call Hold (System)
y Executive/Secretary Pooling
y Call Park and Page
y External Music Interfaces
y Call Pickup
y Flash Key Operation
y Flexible Numbering
y Hot Line
Chapter 3
y In Group/Out of Group
Incoming Call Distribution
Incoming/Outgoing Service
y Individual Line Control
y Least Cost Routing
y Live System Programming
y Meet Me Page and Answer
y Memory Protection
y Message Waiting Indications
y Microphone On/Off Per Station
y Music On Hold-Flexible
y Night Service
y Operator Group
y Orbit Parking
y Overflow
Station Group
y Paging
y Prime Line Selection
y Private Lines
y Programmable Line Privacy
y Programmable Timers
y Recalls
y Single Line Connections
y Speed Dial Numbers
y Speed Dial By Directory
y Station Hunt Groups
y System Alarms
y System Directory
y Station Message Detail Recording
(SMDR) (Call Logging)
y Toll Restriction (Call Barring)
y Toll Restriction (Call Barring) Override
y Tone or Pulse Dialing
y Transfer
y Trunk Groups
y Universal Answer
y Walking Class of Service (WCOS)
System feature descriptions
Account Code Entry
Station users may enter an account code (maximum 12 digits) before hanging up from a call.
This account code will appear in the last column of the SMDR printout for that call record.
Keyset users may enter this code using an account (ACCT) key without interrupting a
conversation. Single line telephone users must temporarily interrupt the call by hookflashing and dialing the feature access code. Account codes can be up to 12 digits long.
y Forced
When forced, account codes are always verified from a system list of 100 entries. Account
codes are always printed on the SMDR report. They can contain digits 0~9.
y Voluntary
Users may select to enter an account code for any call. Digits can include 0~9, star (*) and #.
All Call Voice Page
Users can page all the internal paging at the same time by dialing the All Page code.
Keysets may be restricted from making or receiving pages in system programming.
Attention Tone
To get your attention, a brief tone precedes all page announcements or intercom voice calls.
There are separate programmable duration timers for page and voice announces tones.
Authorization Codes
Authorization codes are used to give permission to make a call. These four digit
authorization codes can be either forced or voluntary. When used, authorization codes will
automatically change the dialing station’s class of service to the level assigned to the
authorization code. Authorization codes may or may not be programmed to print on SMDR.
y Forced
When a station is programmed for forced authorization the user must always enter this code
before dialing is allowed. The dialed authorization code is verified from a system list of 10
y Voluntary
Any station user can always enter an authorization code before they begin dialing. The dialed
authorization code is verified from a system list of 10 entries.
Chapter 3
Automatic Hold
While a keyset user is engaged in an outside (C.O.) call, pressing another trunk key, route
key or CALL key automatically places the call on hold when this feature is enabled.
Pressing TRSF, CONF, PAGE or a DSS key always automatically places a C.O. call on hold.
Intercom calls can be automatically held only by pressing TRSF or CONF. Each keyset user
can enable or disable Automatic Hold.
Background Music
Keyset users may choose to hear music through their keyset speakers. Each user may
adjust this level by the use of a volume control program at the selected keyset.
Branch Groups
Each station can assign its branch group. There are 4 branch groups in DCS-408. When
incoming or intercom call is ringing on station, any other stations that included the same
branch group can answer by lifting the handset or pressing the speaker or ANS/RLS key.
Call Forwarding
This feature allows the user to redirect (forward) incoming calls. The calls can be
redirected to the attendant, a hunt group or another station user. If the destination station
is in Do Not Disturb (DND) mode, the calling party will receive DND/NO MORE tone.
Calls cannot be forwarded to a door phone.
y All Calls
This type of forwarding is not affected by the condition of the station. All calls are
immediately redirected to the designated destination. If desired, the destination station may
redirect the call back to the forwarded station by using the transfer feature. The forwarded
station user can continue to originate calls as usual. If no key is programmed as Forward All,
the TRSF key lights steady when a forwarded all condition is set.
y Busy
This feature forwards all calls only when the station set is busy. The station user can
originate calls as usual.
y No Answer
This feature forwards calls that are not answered within a preprogrammed time. The user
can originate calls as usual and receive calls if present. The timer is programmable on a perstation basis to allow for differences in individual work habits.
y Busy/No Answer
This feature allows the station user to use both types of forwarding simultaneously, provided
the destinations have already been entered in the usual manner.
y Follow Me
This feature allows the station user to forward all calls from another station to the user’s
station or change the forward destination to the user’s current location.
y External
This feature forwards C.O. calls to an external number via a central office trunk if allowed by
class of service. These C.O. calls forward only after the programmable external call forward
delay timer expires.
Call Hold (Exclusive)
Outside calls can be placed on exclusive hold at any keyset by pressing the HOLD key
twice during a call. Calls placed on exclusive hold can only be retrieved at the keyset that
placed the call on hold. Intercom calls are always placed on exclusive hold.
Call Hold (System)
Outside calls can be placed on system hold at any station. Users may dial the access code
or press the HOLD key. Calls on system hold may be retrieved at any station.
Call Park and Page
Each C.O. line has its own park zone. This simple method eliminates confusion and ensures
that a park zone is always available. Pressing the PAGE key parks the call automatically.
There are no extra keys to press and there is no lost time looking for a free zone.
Chapter 3
Call Pickup
y Directed
With directed call pickup, users can answer calls ringing at any station by dialing a code plus
that station’s extension number/incoming trunk number or by pressing the feature key and
then dialing the extension number/incoming trunk number. You can pick up not only
incoming and intercom call, but also hold recalling call if allowed.
y Groups (4)
In addition, calls can be picked up from a station group in a similar manner. The group pickup
feature allows users to answer any call ringing within any pickup group. There are 4 pickup
groups available. A station cannot be in more than one pickup group. To use this feature,
station users either dial the access code or press the assigned feature key followed by the
pickup group number. You can pick up not only incoming and intercom call, but also hold
recalling call if allowed.
Call Waiting/Camp-On
Busy stations are notified that a call is waiting (camped-on) when they receive a tone. The
tone will be repeated at a programmable interval. Keysets receive an off-hook ring signal
through the speaker and single line stations receive a tone in the handset. The station user
can set the volume of the camp-on tone. Camped-on calls will follow forward No Answer if
a Forward No Answer destination has been set.
Chain Dialing
Station users may manually dial additional digits following a speed dial call or chain
together as many speed dial numbers as are required.
Class of Service
The system allows a maximum of 4 station classes of service. Each class of service can be
customized in memory to allow or deny access to features and to define a station’s dialing
class. Each station can be assigned different classes of service for day and night operation.
Common Bell Control
DCS-408 provides a dry contact to control a customer-provided common bell or common
audible device. This contact must be programmed as a member of a station group and may
provide steady or interrupted closure.
The system allows five simultaneous conferences.
y Add-On (5 PARTIES)
Any combination of up to five parties (stations or outside lines) can be joined together in an
add-on conference. Parties may be eliminated or added after a conference has been
y Unsupervised
A station user may set up a conference with two or more outside lines and then exit the
conference leaving the outside lines connected in an unsupervised (trunk to trunk)
Data Security
Single line extensions used with modems and facsimile machines can be programmed so
that they will not receive any system-generated tones that would disrupt data
transmissions. In addition, these devices will receive DCS-408 C.O. ringing pattern instead
of intercom ring pattern. Devices connected to an SLI port will receive a disconnect signal
upon termination.
Direct In Lines
Outside lines may be programmed to bypass the operator(s) and ring directly at any station
or group of stations.
Direct Inward System Access (DISA)
Users can call in on specific DISA lines at any time, input a security code and receive
system dial tone. Users can now place internal calls or, if permitted, calls using C.O. lines.
The caller must have a tone dial phone and must know his/her DISA security code. DISA
lines can be used as both-way lines or incoming only and may be active in day mode, night
mode or both. The C.O. lines used for DISA must have disconnected supervision.
Direct Trunk Selection
Each station can be allowed access to or denied access from a trunk or trunk group by
access code.
Chapter 3
Directory Names
Each station, station group and C.O. line may be assigned a directory name (maximum 11
characters). In addition, each personal speed dial number, system speed dial number may
be assigned a name (maximum 11 characters). These names are displayed during calls with
these ports and, in the case of station and speed dial names, can be used to originate calls.
See the Dial by Name feature (in Station Features).
DISA Security
Telephone fraud and long-distance theft continue to increase; therefore, we have
introduced a DISA security system. If an incorrect DISA passcode is entered repeatedly (as
is the case with “hackers”), the DISA system can be automatically disabled temporarily.
Both the number of incorrect passcode attempts and the time that DISA is disabled are
programmable. In addition, all failed attempts to access DISA will print on SMDR (if
provided) with a “DE” DISA error flag.
Distinctive Ringing
Users will know the type of call received by the type of ring heard. Outside calls have a
single ring repeated while internal calls have a double ring repeated.
Door Lock Release (Programmable)
After answering a call from the door phone, users can dial a code to activate a contact
closure. This can be used to operate a customer-provided electric door lock release
mechanism. The contact closure timer is programmable from 100 to 2500 ms.
Door Phones
The door phone interface module (DPIM) provides for connection of a door phone to a DLI
port. Pressing the key on the door phone produces a distinctive ring (three short rings
repeated) at the assigned station or station group. If not answered within a programmable
time, the system will release the door phone and stop the ringing. Stations may call the
door phone directly and monitor the surrounding areas.
Door Phone Night Ring
The ring destination of door phone calls may be different at night than during the day. For
example, large factories may want these calls directed to a security desk after hours.
Executive Barge-In (Override)
The feature allows specially programmed stations with a barge-in key to override the
automatic privacy of another station. Programming allows barge-in with or without a
warning tone. Stations may also be programmed as “secure” so that they cannot be bargedin on.
y With Warning Tone
When the barge-in with tone option is set the barging-in keyset has its microphone on and
the barged-in on station receives an override display.
A double burst of warning tone sounds and repeats for every 10 seconds. This feature does
not work from single line sets.
y Without Warning Tone
When the barge-in without tone option is set, the barging-in keyset has its microphone
muted and the barged-in on station does not receive an override display. This feature does
not work from single line sets.
Executive/Secretary Pooling
Each keyset may be defined as a BOSS or a SECRETARY in system programming. Each
BOSS can have up to two SECRETARIES and each SECRETARY can have up to two
BOSSES. These arrangements are known as executive/secretary pools. There can be
multiple pools in a system. When a BOSS is in DND, all calls to the BOSS ring the first
SECRETARY assigned to that BOSS; if that SECRETARY is busy, the call hunt to the next
available SECRETARY assigned to that BOSS. If the SECRETARY must communicate with
the BOSS while he/she is in DND, pressing the corresponding BOSS key on the
SECRETARY’s keyset results in an Auto Answer intercom call being made to the BOSS
(provided the BOSS should be free). A station can only be the BOSS of one SECRETARY
pool. In addition, a station cannot be in more than one pool.
External Music Interfaces
DCS-408 provides an interface for connecting a customer-provided external music source.
This source can be used for background music, station music on hold or trunk music on
Chapter 3
Flash Key Operation
While a user is on an outside line, pressing the FLASH key will flash the central office or
PBX. This is used for custom calling features in conjunction with CENTREX/PBX
operation. System programming allows individual flash times for PBX lines. When PBX
flash is not required, selling the timers for two seconds releases the existing call and
returns dial tone to make a new call.
Flexible Numbering
System programming allows stations to have two-, three- or four-digit extension numbers
beginning with the digit 2. Default extension numbers begin with 21. Station hunt group
access codes can be two or three digits beginning with the digit 5. These can be changed
but will affect other feature access codes. All user guides are written using the default
numbering plan.
Flexible Ringing
Each C.O. line can be programmed to ring at any station or station group. Each line can be
assigned a day ring destination and a night ring destination.
Hot Line
Stations can be programmed to call a pre-defined station or station group whenever that
station goes off-hook. A hot line delay timer of 1~250 seconds can be programmed to allow
sufficient time to make a different call.
In Group/Out of Group
Individuals assigned to a station hunt group may temporarily remove their telephones from
the group by pressing the In/Out of Group key provided that there should be someone still
in the group. Stations out of a group will not receive calls to that group but will continue to
receive calls to their individual extension numbers. When desired, the user may put
him/herself back into the group by pressing the key again. Users who do not have this key
may dial the access code and the group desired. A station user is allowed to be in several
groups it a key and the extender of that group are assigned for each group on the user’s
Incoming Call Distribution
Incoming calls can be assigned to ring a distributed station hunt group. This allows all
members of the group to share the call load.
Incoming/Outgoing Service
Outside lines are available for incoming or outgoing service. Programming allows any
outside line to be used for incoming calls only, outgoing calls only or both-way service.
Individual Line Control
Each station in the system can be individually programmed to allow or deny dialing out as
well as allow or deny answering for each outside line.
Least Cost Routing
Least Cost Routing (LCR) is the ability to automatically select the appropriate central office
route for the outside number dialed by any station. LCR can become quite complicated to
understand and program but does allow highly complex dial line decisions. The LCR
package includes the following features ;
y Option to use or not use LCR.
y Programmable LCR access code.
y Digit analysis table: 200 entries each with 10 digits.
y Routing by time of day and day of week.
y Routing according to individual station class.
y Modify digits table : 100 entries.
y Flexible trunk group advance timer.
y Option to use or not use trunk group advance warning tones.
y Clear digits when dialing.
Live System Programming
The system can be programmed from any display keyset without interrupting normal
system operation. There are three levels of programming: technician, customer and station.
The technician level has access to all programs and can allow the customer access to
system programs as needed. Technician and customer accesses are controlled by different
security passcodes.
Meet Me Page and Answer
After a user makes a Meet Me Page, the user may remain off-hook to allow the paged party
to meet the user for a private conversation.
Memory Protection
In the event that power is lost to the system, all customer data contained in memory is
retained for approximately seven days.
Chapter 3
Message Waiting Indications
When calling a station and receiving a busy signal or the no answer condition, the caller can
leave an indication that a message is waiting. The message key will flash red at the
messaged keyset. A single line phone will receive a distinctive message waiting dial tone.
Three message-waiting indications can be left at any station.
Microphone On/Off per Station
The microphone can be disabled at any keyset. When a microphone is disabled, the keyset
cannot use the speakerphone, although on-hook dialing and group listening is still possible.
Music On Hold-Flexible
Each C.O. line may be programmed to receive chimed music source, external sources,
internally-generated tones or no music when it is placed on hold. The system-generated
tone is a beep for every 10 seconds.
Night Service
The system provides separate ringing locations for all trunks in both the day and the night
y Automatic
Automatic night service allows the system to automatically go in and out of night service
according to the system clock. There are separate time options available for each day of the
y Manual
The operator presses the NIGHT key and then dials a passcode to change day mode to night
mode operation.
y Holiday
There are 60 holiday tables. If it is a holiday, DCS-408 operates on night mode.
Operator Group
The station groups can contain 8 stations to answer incoming calls. Calls to this group can
be set for distributed, sequential or unconditional ringing. Operators can use the In/Out of
Group feature to meet flexible operator requirements. Default operator group is 50, but this
can be changed to 51~53.
Orbit Parking
Park Slots enable SLT users to park a call into a number. They can announce the number to
another user and that person can dial the Park Slot number to retrieve the call. This feature
is handy for those people on SLT.
y Operator
When calls ringing an operator group go unanswered, they can overflow to another
destination after a programmed period of time. The operator group has its own timer. The
overflow destination can be a station or station group.
y Station Group
When calls ringing a station group go unanswered, they can overflow to another destination
after a programmed period of time. Each station group has its own timer. The overflow
destination can be a station or station group.
System software allows for the use of two internal paging zones. Stations can page any
individual zone or all internal zones simultaneously. Using system programming, each
station may be allowed or denied the ability to make and/or receive page announcement
to/from any zone or combination of zones.
Prime Line Selection
Any station can be programmed to select a specific line, line group, telephone number.
Private Lines
For private line use, stations can be prevented from dialing and/or answering any line.
Programmable Line Privacy
Each outside line can be programmed to ignore the automatic line privacy. This allows up to
four other parties to join your conversation by simply pressing the line key.
Programmable Timers
There are over 50 programmable system timers to allow each installation to be customized
to best fit the end user’s application.
Chapter 3
Calls put on hold, transferred or camped-on to any station will recall to the originating
station if not answered within a programmable period of time. A recall that goes
unanswered for the duration of the attendant recall timer will recall to the system operator
group. Hold, transfer, camp-on and attendant recalls have individual programmable timers.
Calls recalling to keys with tri-coloured LEDs will flash amber.
Single Line Connections
Single line ports allow for connection of a variety of SLTs plus facsimile machines,
answering machines, computer modems, cordless phones and credit card machines. When
connecting customer-provided equipment to these extensions, compatibility should be
checked before purchasing to ensure correct operation. Central office ring cadence can be
selected for SLT stations. This is helpful when optional devices cannot detect intercom ring
Speed Dial Numbers
The system has a library of 300 speed dial numbers, which may be allocated between the
system list and stations as needed. The system list can have a maximum of 200 numbers
and each station can have up to 50 numbers. Speed dial numbers are assigned in blocks of
10. Each speed dial number may contain up to 24 digits.
Speed Dial by Directory
The systems provide the user with the ability to look up a speed dial number and place the
call. This feature can be used with the soft keys on the display keysets or as a
programmable key.
Station Hunt Groups
System programming allows for up to 4 station hunt groups. One of three rings-sequential
distributed and unconditional-is available for each group. Each group may contain a
maximum of 8 stations. A station may be assigned to more than one group. The default
directory numbers to call these groups are 50-53. Each station group has its own recall
timer for calls transferred to that group.
System Alarms
The alarm destination can be a station or station group.
A DISA alarm warns the customer if the DISA security system has been triggered by too
many incorrect password attempts. The alarm can ring any station or group of stations and
show an appropriate display at the assigned stations.
System Directory
Each station, station group and outside line can have an 1 1-character directory name. This
name appears on keyset displays to provide additional information about lines and stations.
Station Message Detail Recording (SMDR) (Call Logging)
The system provides, via an SIO port, records of calls made, received and transferred.
Connecting a customer-provided printer or call accounting system will allow collection of
these records. Each call record provides the following details: station number, outside line
number, start date, start time, duration of call, digits dialed (maximum 18), an account code
(if entered) and call cost. (NOTE : Call cost is only available if the network supplies
relevant information.) The system may print a header followed by 50 call records per page
or send continuous records with no header for use with a call accounting machine.
The SMDR format contains many options that allow it to be customized for a company’s
individual needs. Options to print include incoming calls, outgoing calls, in and out of group
status, change in DND status and authorization codes.
Toll Restriction (Call Barring)
There are 100 allowed and 100 deny entries of 12 digits each. Each of these entries can
apply to dialing classes B, C, D, E, F and G. Expensive, premium rate and operator-assisted
calls, as well as specific area and office codes, can be allowed or denied on a per-class basis.
Class A stations have no dialing restrictions and Class H stations cannot make outside calls.
Any outside line may be programmed to follow station toll restriction or follow the toll
restriction class assigned to it. Each station and trunk can have a day dialing class and a
night dialing class.
Toll Restriction (Call Barring) Override
Program options allow system speed dial numbers to follow or bypass a station’s toll
restriction class. In addition, users may make calls from a toll-restricted station using
either the Walking Class of Service feature or the authorization code feature.
Tone or Pulse Dialing
Outside lines can be programmed for either tone or pulse dialing to meet local telephone
company requirements.
System operation permits station users to transfer calls to other stations in the system.
Transfers can be screened, unscreened or camped-on to a busy station.
Chapter 3
Trunk Groups
Outside lines can be grouped for easy access by dialing a code or pressing a key. There are
2 trunk groups available. Access codes are 9 and 8.
Universal Answer
Station users may dial the Universal Answer code or press the UA key to answer any
outside lines programmed to ring the UA device. The UA device can be a station, group of
stations, common bell or ring over page.
The VPN (Virtual Private Network) feature allows the DCS-408 to operate in a closed
numbering group based on a 5 or 6-digit dialing plan for all members of the closed
numbering group. In this case the local site DCS-408 extensions also operate with a same 5
or 6 digit extension number. The feature uses the LCR tables to identify and route calls
within the closed numbering group and normal external calls. Local site calls are identified
based on a programmable 2- digit self-identification code.
The system, when the feature is set to ON in MMC 210, automatically enters LCR mode
and analyses the digits dialed. If the first two digits are the same as the system Self-ID
code programmed in MMC 724 the system will activate the feature based on the following
digits dialed, e.g. internal call. All other outgoing calls are routed in accordance with LCR
related tables MMC 710, MMC 712 and MMC 713.
Walking Class of Service (WCOS)
This feature allows users to make calls or use features from a station that is restricted. The
users may either use the WCOS feature code or the authorization code feature. Both
methods change the class of service corresponding to the station passcode or authorization
code that is dialed. After the call is completed, this station returns to its programmed class
of service.
Station features
y Appointment Reminder
y Mute Microphone/Handset
y Automatic Hold
y Off-Hook Ringing
y Automatic Privacy
y Off-Hook Voice Announce (OHVA)
y Background Music
y One Time Do Not Disturb
y Busy Station Callback
y One-Touch Dialing keys
y Busy Station Indications (BLF)
y On-Hook Dialing
y Call Forwarding
y Programmable Keys
y Call Pickup
y Programmed Station Messages
y Dial By Name
y Protection From Barge-In
y Direct Station Selection (DSS)
y Pullout Directory Tray Pulse To Tone
Switch Over
y DND Override
y Do Not Disturb (Programmable)
y Door Lock Release
y Exclusive Hold
y Group Listening
y Headset Operation
y Hearing Aid Compatible
y Line Queuing With Callback
y Line Skipping
y Loud Ringing Interface
y Message Waiting Light/Indication
y Redial
Auto Retry
Last Number
Save Number
y Ring Modes
y Ringing Preference
y Speakerphone
y Station Lock
y Tri-Coloured Lights
y Volume Settings
y Wall-Mountable Keysets
Chapter 3
Station feature descriptions
Appointment Reminder
Keysets With an alarm key can be used like an alarm clock. When programmed for a
specific time, the keyset will sound a distinctive ring to remind you of meetings or
appointments. Alarms can be set for “today only” or for “every day” at the same time. Up
to two alarms may be set at each keyset. Display keysets can also show a programmed
message when the alarm rings.
Automatic Hold
Station users can enable or disable automatic hold at their keysets. While a user is engaged
on an outside (C.O.) call, pressing another trunk key, route key or CALL key automatically
puts the call on hold when this feature is enabled. Pressing TRSF, CONFERENCE, PAGE
or a DSS key will always automatically place the call on hold. This type of automatic hold is
not a user-selectable option.
Automatic Privacy
All conversations on outside lines and intercom calls are automatically private. The privacy
feature can be turned off on a per-line basis.
Background Music
When a customer-provided music source is connected, each keyset user may listen to
background music. The HOLD key turns background music on or off and the volume
control keys control the volume. One music source can be externally connected to the
system. Chime music is available by default.
Busy Station Callback
When reaching a busy station, callers may request a callback by pressing one key or dialing
a code. The system rings the caller back when that station becomes idle (a system-wide
maximum of 30 callbacks are allowed at one time, including busy station and busy trunk).
Busy Station Indications (BLF)
DSS/BLF keys may be assigned to any keyset. These keys will be oft when the station is
idle, light red when that station is in use and flash distinctively when that station is in DND
Call Forwarding
Station users can forward internal and outside calls to other destinations immediately
(Forward All), when busy (Forward Busy) or when not answered within programmable
duration (Forward No Answer).
These forward destinations can all be different. Once a destination has been programmed, it
can be turned on and off with a programmable key. Forward All Calls takes priority over
Busy and No Answer conditions.
In addition to the three usual methods of forwarding described above, a fourth option called
Follow Me is available. This option allows station users to set a Forward All condition from
his/her station to another station while at the remote station. To display the Follow Me
condition, the TRSF key lights steady red at the station that is forwarded. The TRSF key
also lights if Forward All is set and no key is programmed for Forward All.
Keyset users can also be given an external call forward key to forward their calls to an
external phone number. Each outside line may be programmed to either follow or ignore
station call forwarding. A per-station option controls whether internal calls forward to voice
mail or not. SLTs must have the system administrator program this feature for them.
Call Pickup
With directed call pickup, a user can answer calls ringing at any station by dialing a code
plus that extension number. The group pickup feature allows the user to answer any call
ringing within a pickup group. Pickup keys may be customized with extenders to allow
pickup from a specific station or pickup group. The DCS-408 has 4 programmable pickup
Dial By Name
Each system and personal speed dial number can have an associated directory name. A
speed dial number can be selected by scrolling alphabetically through the directory name
list. This on-line “directory” allows the user to look up and dial numbers in seconds.
Direct Station Selection (DSS)
Programmable keys can be assigned as DSS keys and associated with extension numbers.
Users press these keys to call or transfer calls to the assigned stations.
DND Override
The Do Not Disturb (DND) feature is used to stop all calls to a station. However, an
extension that has a class of service that allows DND override can override the DND
status of another extension using the DNDOVRD soft key or DND OVERRIDE ID.
Chapter 3
Do Not Disturb (Programmable)
The Do Not Disturb (DND) feature is used to stop all calls to a station. System
programming can allow or deny use of the DND feature for each station. Parties calling a
station in DND will receive reorder tone. A keyset without a DND key can activate DND
via the feature access code. The ANS/ALS key will flash at 112 ipm (rapidly) when DND is
set. There is a programmable option to allow a C.O. line to override DND at its ring
destination if that destination is a single station.
Door Lock Release
Stations programmed to receive calls from a door phone can dial a code to activate a contact
closure for control of a customer-provided electronic door lock.
Exclusive Hold
Pressing the HOLD key twice will hold a call exclusively at a station so no other station
can pick up that call. Intercom calls are automatically placed on exclusive hold.
Group Listening
This feature allows users to turn on the speaker while using the handset. This allows a
group of people to listen to the distant party over the speaker without the microphone
turned on.
Headset Operation
Every keyset can be programmed to allow for the use of a headset. In the headset mode,
the hookswitch is disabled and the ANS/RLS key is used to answer calls. ANS/RLS key
lights steady red when the keyset is in headset mode.
Headset operation can also be achieved using a third-party supplied headset adapter.
Hearing Aid Compatible
All keysets are hearing aid compatible.
Line Queuing with Callback
When the desired outside is busy, the user can press the CALLBACK key or dial the access
code to place his/her station in a queue. The user will be called back when the line is
available (a maximum of 30 callbacks are allowed system-wide at one time including busy
station and busy trunk).
Line Skipping
When the user is talking on an outside line and the automatic hold feature is turned off,
he/she may press an idle line key and skip to that line without causing the previous call to
go on hold.
Loud Ringing Interface
Ring tone can be provided to the external page port connecting to a customer-provided
amplifying device. The output can then be assigned to ring with a specific station to provide
loud ringing capability.
Message Waiting Light/lndication
When a message indication is left at a keyset, the MESSAGE key will slowly flash red.
SLTs will receive a distinctive dial tone to notify them that a message is waiting. Message
waiting indications can be left for any station or group of stations.
Mute Microphone/Handset
Any keyset user can mute the keysets handset transmitter by pressing the MUTE key. In
addition, keyset users can also mute the keyset microphone while the keyset is in
speakerphone mode.
Off-Hook Ringing
When a keyset is in use, the system will provide an off-hook ring signal to indicate that
another call is waiting. The ring signal is a single ring repeated. A system-wide timer
controls the interval. Single line stations will receive a lone burst through the handset
receiver instead of a ring.
Off-Hook Voice Announce (OHVA)
Keysets may receive a voice announcement while on another call. The calling station must
have an OHVA key. When transferring a call to a busy keyset or while listening to busy
signal, the station user can press the OHVA key to make an OHVA call to the busy keyset.
If the called keyset is in the DND mode, it cannot receive OHVA calls.
One Time Do Not Disturb
The Do Not Disturb (One Time) feature is used to stop all calls to a station when the user
is on an outside line and does not want to be disturbed for the duration of the call. Upon
completion of the call, DND is cancelled and the station is returned to normal service. This
feature requires a programmed key.
Chapter 3
One-Touch Dialing Keys
Frequently used speed numbers can be assigned to one-touch dialing keys for fast accurate
On-Hook Dialing
Any keyset user can originate calls without lifting the handset. When the called party
answers, the user may speak into the microphone or lift the handset for more privacy.
Programmable Keys
LCD 24B and STD 24B keysets have 24 programmable keys; LCD 12B and STD 12B
keysets have 12; Enhanced 6B keysets have 6. Each key can be programmed for different
uses to personalize each phone. Examples of keys include individual outside line, individual
station, and group of lines, group of stations and one-touch speed dial keys. Using these
keys eliminates dialing access codes.
The following feature keys have extenders that make them more SPEED DIAL,
extender can be a station, a group or another identifying number.
Programmed Station Messages
Any station may select one of 20 messages to be displayed at a calling party’s keyset. Ten
messages are factory-programmed and the system administrator (16 characters maximum)
can customize the remaining 10.
The calling party must have a display keyset to view these messages.
Protection From Barge-In
Each station can be programmed as secure or not secure. Secure stations cannot be bargedin on. A station that is not secure cannot be barged-in on when talking to a secure station.
Pullout Directory Tray
A pullout directory tray is conveniently located beneath all keysets. It is used to record
station directory names and speed dial numbers.
Pulse To Tone Switch Over
When dialing a number on a dial pulse network, a station user can dial # and the system
will begin to send DTMF.
There are three types of external redial available to all station users. Each type can redial
up to a maximum of 18 digits.
y Auto Retry - When an outside number is dialed and a busy signal is received, the auto retry
feature can be used to reserve the outside line and automatically redial the number for a
programmable number of attempts.
y Last Number - The most recently dialed number on a C.O. line is saved and may be
redialed by pressing the redial key or dialing the LNR access code.
y Save Number - Any number dialed on a C.O. line may be saved for redial at a later time.
Ring Modes
Each keyset user can select one of three distinct ways to receive intercom calls. The phone
can automatically answer on the speakerphone, voice announce through the speaker or
receive ringing. When the ring mode is selected, keyset users can choose one of eight
distinct ring tones. Forced Auto Answer is invoked by the calling station and is controlled
by the calling station’s class of service.
Ringing Preference
Lifting the handset or pressing the ANS/RLS key automatically answers a call ringing at
the keyset. Using this method, users are assured of answering the oldest call first. When
ringing preference is turned off, the user must press the flashing key to answer. Users may
answer ringing lines in any order by pressing the flashing key.
All keysets have a built-in speakerphone. This speakerphone enables calls to be made and
received without the use of the handset.
Station Lock
With a programmable personal station passcode, any keyset can be locked and unlocked or
only outside call. A locked keyset cannot be used to make or receive calls.
Tri-Coloured Lights
LCD 24B and STD 24B keysets have 14 keys equipped for tri-colored red LED indications
(green, red and amber). LCD 12B and STD 12B models have eight of these keys. To avoid
confusion, your calls always light green, other calls show red and recalls light amber.
Chapter 3
Volume Settings
Each keyset may separately adjust the volume of the ringer, speaker, handset receiver,
background music, page announcement and off-hook ring tone.
Wall-Mountable Keysets
Every keyset comes equipped with a reversible base wedge that can be utilized as a wallmount bracket.
Display features
y Account Code Display
y Call Duration Timer
y Call For Group Identification
y Call Processing Information
y Calling Party Name
y Calling Party Number
y Conference Information
y Date And Time Display
y Dialed Number
y Enhanced Station Programming
y Identification of Recalls
y Identification of Transfers
y Message Waiting Caller Number
y Outside Line Identification
y Override Identification
y Programmed Message Display
y Soft Keys
y Stopwatch Timer
Chapter 3
Display feature descriptions
Account Code Display
Account codes are conveniently displayed for easy confirmation. If entered incorrectly,
users may press the ACCT key again and reenter the account code.
Call Duration Timer
The system can automatically time outside calls and show the duration in minutes and
seconds. Station users may manually time calls by pressing the TIMER key.
Call For Group Identification
When a call is made to a station group, the display shows [CALL FOR] and the user’s group
number. These calls can be answered with a different greeting than calls to the user’s
extension number.
Call Processing Information
During everyday call handling, the keyset display will provide information that is helpful
and in some cases invaluable. Displays such as [CALL FROM 23], [TRANSFER TO 22],
[71 : RINGING], [TRANSFER FM 23], [72 : busy], [Camp on to 24], [Recall from 24], [Call
for 51], [message from 24] and [FWD ALL to 24] keep users informed of what is happening
and where they are. In some cases, the user is prompted to take action and in other cases
the user receives directory information.
Calling Party Name
For intercom calls, LCD 24B and LCD 12B keysets show the calling party’s name before
answering. The names must be stored in the system directory list and can be up to 11
characters long.
Calling Party Number
When an intercom call is received, all display stations show the calling party’s extension
number before the call is answered.
Conference Information
When a conference is set up, each extension and outside line number is displayed at the
controlling station when it is added. When a station is added, its display shows [Conf with
XX] - alerting the user that other parties are on the line.
Date And Time Display
In the idle condition, the current date and time are conveniently displayed.
Display keysets can have 12- or 24-hour clock in either ORIENTAL or WESTERN display
format with information shown in uppercase or lowercase letters.
Dialed Number
When an outside call is made, digits are displayed as the user dials them. If the display
indicates an incorrect number was dialed, the user can quickly hang up before billing begins.
Enhanced Station Programming
Personal programming options are easier to select and confirm with the help of the display.
Identification of Recalls
Hold recalls and transfer recalls are identified differently from other ringing calls. Hold
recalls indicate the recalling line or station number and the associated name. Transfer
recalls indicate the recalling line or station and where it is coming from.
Identification of Transfers
The display identifies who transferred a call to the user.
Message Waiting Caller Number
When the message indication is on, pressing the MESSAGE key displays the station
number(s) of the person(s) who have messages for the user. Display keyset users can scroll
up and down to view message indications.
Outside Line Identification
Each line can be identified with an 11-character name. Incoming calls display this name
before the call is answered. This feature is helpful when individual lines must be answered
with different greetings.
Override Identification
If another station barges-in on a user’s conversation, the display alerts the user with a
[Barge from 2x] display if the system is set for barge-in with tone.
Programmed Message Display
Preprogrammed station messages set by other stations are displayed at the calling station’s
Chapter 3
Soft Keys
Below the display are three soft keys and a SCROLL key. These keys allow the user to
access features in his/her class of service without requiring the keyset to have designated
feature keys.
Stopwatch Timer
Display keyset users find this feature very convenient to time meetings, calls and other
functions. Users simply press once to start the timer and press again to stop the timer.