EADS 6500 PBXs supporting CCS Interface in System 9d

TD 92407GB
Function Description
Ascom IP-DECT System
2007-12-10/ Ver. D
Function description
Ascom IP-DECT System
TD 92407GB
Contents
1 Introduction............................................................................................................. 1
1.1 Abbreviations and Glossary ................................................................................ 1
2 Technical Solution ................................................................................................... 2
2.1 System Size ........................................................................................................ 2
2.2 LDAP Server ....................................................................................................... 3
2.3 Supported Protocols ........................................................................................... 3
2.4 Power the Base Stations ..................................................................................... 3
3 DECT Handset .......................................................................................................... 4
3.1 Voice Functions .................................................................................................. 4
3.1.1 Roaming and Handover ............................................................................. 4
3.2 Messaging Functions .......................................................................................... 4
3.2.1 Customized Groups ................................................................................... 5
3.2.2 Messages with Manual Acknowledge Request ........................................... 5
3.2.3 Messages with Delivery Receipt Request ..................................................... 5
3.2.4 SMS (Short Message Service) ...................................................................... 6
3.2.5 Interactive Messaging ................................................................................ 6
3.2.6 Broadcast Messaging ................................................................................. 6
3.2.7 Absence Handling ...................................................................................... 6
3.2.8 Data from Handset .................................................................................... 6
3.2.9 DECT Phonebook Service ........................................................................... 6
3.3 Alarm ................................................................................................................ 7
3.3.1 Alarm with data ......................................................................................... 7
3.3.2 Alarm with Base Station Location ............................................................... 7
3.3.3 DECT Location ........................................................................................... 7
3.4 Priorities in the IMS ............................................................................................ 8
3.5 Capacity ............................................................................................................ 8
3.6 Channel Distribution .......................................................................................... 9
3.6.1 BS3x0 Connected to the IPBL ..................................................................... 9
3.6.2 IPBS ........................................................................................................... 9
4 Configuration notes for Ascom VoIP Gateway ................................................... 11
4.1 Configure LDAP ............................................................................................... 11
4.2 Set PBX Password in the VoIP Gateway ............................................................ 11
4.3 Add System Object in the VoIP Gateway .......................................................... 12
4.4 Enter system name in the IPBS/IPBL .................................................................. 12
4.5 Handset Features ............................................................................................. 13
5 Related Documents ............................................................................................... 14
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Function description
Ascom IP-DECT System
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TD 92407GB
Introduction
The Ascom Voice over Internet Protocol (VoIP) system provides wireless IP-telefony and
messaging to enterprise LANs. The VoIP system can also interact with Unite and other
systems. This document gives a brief description of the functions supported in the Ascom
IP-DECT System.
For maximum performance in the system, see the recommendations in Considerations for
Ascom IP-DECT System Planning, TD 92422GB.
For information about Ascom VoIP Gateway, see Installation and Operation Manual, VoIP
Gateway, TD 92326GB.
1.1
Abbreviations and Glossary
DECT
Digital Enhanced Cordless Telecommunications:
global standard for cordless telephony.
ESS
Enhanced System Services:
Unite module that supports advanced message routing and centralised
fault handling and logging.
IMS
Integrated Message Server:
Unite module that enables messaging to and from the connected
cordless telephone system.
IP
Internet Protocol:
global standard that defines how to send data from one computer to
another over the Internet
IPBS
IP-DECT Base Station
IPBL
IP-DECT Gateway
LAN
Local Area Network:
a group of computers and associated devices that share a common
communication line.
LDAP
Lightweight Directory Access Protocol
PBX
Private Branch Exchange:
telephone system within an enterprise that switches calls between local
lines and allows all users to share a certain number of external lines
PoE
Power over Ethernet
QoS
Quality of Service
PSTN
Public Switched Telephone Network:
the world’s collection of interconnected voice-oriented public telephone
networks
RFP
Radio Fixed Part. DECT base-station part of the DECT Infrastructure.
SIP
Session Initiation Protocol
VoIP
Voice over Internet Protocol:
the technology used to transmit voice conversations over the internet
protocol.
Unite
Generic term for messaging system that unites different systems, for
example System 900, System 9d, and teleCARE M.
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Function description
Ascom IP-DECT System
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Technical Solution
The Ascom IP-DECT system is built by Ascom developed hardware and software as well as
third-party products. The following components are developed by Ascom and provides
voice, messaging and alarm functions in an Ascom IP-DECT system:
•
•
•
•
•
•
DECT cordless handset
IP-DECT Base Stations (IPBS)
IP-DECT Gateway (IPBL)
Ascom VoIP Gateway (IP-PBX)
Integrated Message Server (IMS)
Unite
PSTN (Public Switched Telephone Network)
IP-PBX
RFP
RFP
RFP
IPBL
LAN
Unite Suite
IMS
IPBL
RFP
RFP
Unite
platform
IPBS
001
IPBS
1.
Figure
Figure 1. Overview of the IP-DECT system.
For more information about system components, see System Description, Ascom IP-DECT
System, TD 92375GB.
Messages and alarms can be sent between the IP-DECT system and other Ascom
messaging systems via the IMS. Communication with traditional telephony systems is
enabled through the IP-PBX.
2.1
System Size
The IP-DECT system has support for 100 IPBL, 1000 IPBSs and 2000 handsets. All handsets
have the same telephony access regardless of which base station it is connected to.
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LDAP Server
The LDAP protocol is used in the IP-DECT system to let all IPBL/IPBSs in the system to have
access to a joint user database.
The joint user database contains information about the users registered in the system. It
also contains the system configuration.
2.3
Supported Protocols
The Ascom IP-DECT system supports H.323 and SIP. The following supplementary services
are supported by H.323/H.450 and SIP protocol.
H.323/H.450
SIP
x
Supplementary Services
x
x
Call Transfer
x
x
Call Diversion
x
x
Do Not Disturb
x
x
Call Hold
x
x
Call Waiting
x
x
Message Waiting Indication
x
x
Calling Party Name Presentation
x
2.4
Description
Completion of Calls to Busy Subscriber
Power the Base Stations
If the IPBSs are using PoE, the classifications must be considered. The PoE power source
(for example the ethernet switch) will allocate power according to the PoE classification
and not according to the real power usage.
The IPBL power supply will allocate power to both the IPBL and the connected RFPs.
As an alternative, the base stations can use a local AC-adapter for individual power supply.
For more information, see Installation and Operation Manual, IP-DECT Base Station & IPDECT Gateway, TD 92372GB.
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DECT Handset
3.1
Voice Functions
The IP-DECT system uses Voice over Internet Protocol (VoIP) as the technology for
transmission of voice. The voice packets are divided and compressed by the IPBS/IPBL
before they are sent over the network.
The transmission of voice packets between the IPBS/IPBL and the VoIP Gateway/
Gatekeeper/SIP proxy is handled by the LAN.
The gatekeeper manages the so called H.323 zone which is a logical collection of all the
H.323 endpoints within the IP-DECT system. The SIP Proxy manages the so called SIP zone
which is a logical collection of all the SIP endpoints withing the IP-DECT system.
They both provide address translation (routing) between internal and external numbering
plans and also provides admission control, specifying which device can call which number.
Figure 2.
IMS
master
IPBS
IP Backbone / LAN
IP-PBX
IPBS
IPBS
DECT handset
002
Voice
Signal
Figure 2. Voice/signal transmission
External Call to/from the DECT Handset
1
The DECT handset associates with the closest base station (the base station with
the best signal quality and strength).
2
The base station establishes a signalling connection to the master.
3
A call setup request is sent to the IP-PBX.
4
The IP-PBX finds the receiving part and sets up the call.
5
The voice packets are sent directly between the base station and the IP-PBX.
3.1.1
Roaming and Handover
The IP-DECT system supports roaming between all base stations in the system. It also
supports handover if there is overlapping speech coverage between base stations.
Roaming and handover is supported by all Ascom DECT Handsets.
3.2
Messaging Functions
A message to a cordless handset can be generated either from the message tool in the
IMS, contact inputs directly on the IMS, or SMS between the handsets. The message can
be initiated by, for example closing (or opening) a contact.
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Cordless handsets supporting messaging functions are required. Messaging functions in
cordless handset are described in respective User Manual
Figure 3.
IMS
master
IPBS
IP Backbone / LAN
IP-PBX
IPBS
DECT handset
003
IPBS
Figure 3. Message transmission
Send Message to/from the DECT Handset
1
The DECT handset associates with the closest base station.
2
The base station establishes a connection to the master.
3
The DECT handset sends the message to the IMS via the Master.
4
The IMS forwards the message.
3.2.1
Customized Groups
IMS has an integrated Group Handler enabling the creation of 30 groups with up to 15
users in each group, and 1 group with up to 50 users. By adding an ESS to the system
larger and more groups with enhanced functions are enabled.
3.2.2
Messages with Manual Acknowledge Request
Messages with a manual acknowledge request must be acknowledged by the user of the
cordless handset. A message with a manual acknowledge request can be sent from the
Alarm Module, a Serial Interface connected to external equipment. It can also be sent
from the IMS (BAM), NetPage, or a customized application via the OAS, in the Unite
System.
If the module or external equipment sending the message does not receive the manual
acknowledge, it can send the message to other cordless handsets or take other actions.
3.2.3
Messages with Delivery Receipt Request
When a message with a delivery receipt request is sent to a handset, the handset
automatically sends an acknowledge when the message is received. Messages with a
delivery receipt request can be sent from an Alarm Module, a Serial Interface connected to
external equipment. It can also be sent from the IMS (BAM), NetPage, or a customized
application via the OAS, in the Unite System.
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Function description
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TD 92407GB
SMS (Short Message Service)
SMS can be sent between handsets within the system, and it is also possible to send an
SMS to a pre-defined destination address. For more information see the User Manual for
respective Cordless Handset.
3.2.5
Interactive Messaging
Interactive messaging makes it possible for a client application to have a two-way
communication in plain language with a user of a cordless handset.
For more information see Function Description, Interactive Messaging (IM), TD 92168GB.
3.2.6
Broadcast Messaging
With Broadcast messaging it is possible to deliver one message to all users in the system
simultaneously. When a message is sent as a broadcast all handsets in the coverage area
can receive the message. The system does not get a delivery receipt from the handsets,
but the message is sent three times to increase the reliability of the transmission.
An ESS with basic licence and cordless handsets 9d24 Messenger or Protector versions are
required.
3.2.7
Absence Handling
Three different types of absence are supported by the system; Automatic-, Manual- and
Late absence. When absent, messages can be diverted to another cordless handset.
Automatic Absence is an option that can be set in the cordless handset. Information is
then sent to the IMS when the cordless handset is placed in or removed from the charger.
Manual Absence is a function programmable in the handset as a “Hot Key”. Absent on/
off can be selected and sent to the IMS.
Late Absence is a function that is used when the cordless handset can not be reached, for
example when it is out of coverage
For more information see Function Description, Number Planning and Message Routing in
Unite, TD 92554GB and Function Description, Absence Indication, TD 92101GB.
3.2.8
Data from Handset
It is possible to send user data from the cordless handset as “Data Send”. This data is
defined by the user and is transmitted by pressing a hot key on the handset. The data is
sent to the Unite System for distribution to interface modules, for example the Alarm
Module, the Output Module, the AMS, or via the OAS to a customized application.
User data can for example be used for opening/closing a door by activating an output
connected to a relay on the Output Module, or activate the Alarm Module to send a preprogrammed text message to other cordless handsets.
For more information see, Function Description, Applications based on Sending Data from
handset, TD 92095GB.
3.2.9
DECT Phonebook Service
DECT Phonebook Service is delivered together with the IMS. The function enables access
to a centralized telephone number directory from the cordless handset. The telephone
directory may be located in the site database or in any MSSQL-compliant database.
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DECT Phonebook Service has the same function as the IMS Phonebook. The difference is
that the DECT Phonebook service has support for a database that contains more entries.
IMS Phonebook and DECT Phonebook service can be used at the same time as long as
they have separate addresses.
3.3
Alarm
Alarm messaging includes all types of alarm from handsets, location etc. Cordless
handsets equipped with alarm functions can send different types of alarm messages to the
Unite System. The data can be sent to interface modules, for example an Alarm Module or
Output Module. The Alarm Module is used to generate group messages to other cordless
handsets while the Output Module activates outputs connected to signal lamps or sirens.
Alarm messages can also be sent to an Alarm Manager Server (AMS) for further actions.
The AMS can for example activate an output connected to a signal lamp or siren, or
present the alarm on a PC with equipped with the AMC software (an Alarm Management
Client). The PC can besides the identity, alarm type and time also display the location
graphically.
For more information see the document: Function Description, Alarm from Handsets,
TD 92099GB.
3.3.1
Alarm with data
Additional data for, example a location code, can be sent along with an alarm. The data
and type of alarm can be presented on an Alarm Management Client, but it can also be
indicated by an Alarm- or Output Module.
For more information see the document: Function Description, Alarm from Handsets,
TD 92099GB.
3.3.2
Alarm with Base Station Location
An approximate location of the cordless handset is possible to add to an alarm sent from
the handset. The handset evaluates at alarms the field strength ratio of the individual radio
IPBSs and sends the best-rated base station as a location of where the alarm was
activated. However, positioning based on radio field strength measurements must be
regarded as an indication only.
The type of alarm and the location of the handset can be presented on an Alarm
Management Client (AMC). The AMC client can besides the identity, alarm type and time
also display the location graphically. The alarm can also be indicated by an Alarm- or
Output Module.
For more information see the document: Function Description, Alarm from Handsets,
TD 92099GB.
3.3.3
DECT Location
With DECT Location it is possible to send an alarm with the two latest location codes. This
makes it possible to decide in which part of a building a person is located, and in which
direction he is moving. It does not give an exact location from where an alarm is
transmitted but, depending on how many location devices 9dLDs that are used, a high
precision of the location can be achieved.
For more information see the document: Function Description, DECT Location,
TD 92177GB.
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Function description
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Priorities in the IMS
Messages are distributed first-hand in priority order and secondly, for messages with same
priority, in time order. If distribution of a message fails it returns to the queue but is now
the last in time order. A message can be sent three times.
The different priority levels have reserved places of the max. 10 places for active messages.
Alarm has 2, high priority has 3, and normal priority has 5 reserved places. But, Alarm is
allowed to use all ten places and high priority is allowed to use the five places used for
normal priority.
3.5
Capacity
Alarm Messages from Cordless Handset
Time until received in the Unite system:
~ 2 sec
Incoming Messages to Cordless Handset 9d24 (version 3.0 or later)
The time for a message to be delivered differ dependent on how many characters the
message contain and if it is delivered to a single handset or a group of handsets.
Number of message characters:
No of Cordless Time in seconds until one
Handsets:
handset is paged:
20 characters
1
~3
120 characters
1
~3
240 characters
1
~4
500 characters
1
~7
Number of message characters:
No of Cordless Time in seconds until all
Handsets:
handsets are paged:
20 characters
1
10
30
100
~3
~4
~ 11
~ 32
120 characters
1
10
30
100
~3
~4
~ 13
~ 39
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Function description
Ascom IP-DECT System
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Incoming Messages to Cordless Handsets in a Broadcast Group
No of Cordless Time in seconds until the
Handsets:
group is paged:
Number of message characters
3.6
20 characters
Unlimited
~3
120 characters
Unlimited
~4
240 characters
Unlimited
~7
500 characters
Unlimited
~ 13
Channel Distribution
When a handset is used for speech, message, or alarm it always occupies one channel.
However, when a handset is used for speech it can send or receive a message or an alarm
on the same channel.
3.6.1
BS3x0 Connected to the IPBL
The BS3x0 that is connected to the IPBL has in total twelve channels used for
communication with the user of a handset. One channel is reserved for broadcast
messages. Alarm from handset can occupy eleven channels. Messages to/from handsets
can occupy ten channels but only eight speech calls can be handled simultaneous, see
figure 4.
IPBL
Speech calls
Messages to/from handset
Alarm from handset
Broadcast
Figure 4.
1
2
3
4
5
6
7
8
9
10
11
12
005
LAN
Figure 4. Channel distribution in the BS3x0 connected to the IPBL.
This means that even if a BS3x0 reports that it is busy i.e. fully occupied with speech calls
and/or messaging, there are always channels free for alarm from handset and broadcast
messages.
3.6.2
IPBS
The IPBS has in total twelve channels used for communication with the user of a handset.
One channel is reserved for broadcast messages and two channels are reserved for
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Function description
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synchronization. Alarm from handset can occupy nine channels but only eight speech and/
or messaging can be handled simultaneously, see figure 5.
Speech and Messaging
Alarm from handset
Sync. bearer
Broadcast
Figure 5.
1
2
3
4
5
6
7
8
9
10
11
12
006
LAN
Figure 5. Channel distribution in the IPBS.
This means that even if a IPBS reports that it is busy i.e. fully occupied with speech calls
and/or messaging, there are always channels free for alarm from handset and broadcast
messages.
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Configuration notes for Ascom VoIP Gateway
The following configurations must be done for an IP-DECT system using the Ascom VoIP
Gateway as a gatekeeper. For all other configuration settings see the installation manuals
for the IPBS/IPBL and the VoIP Gateway.
PSTN
Ascom
VoIP Gateway
RFP
RFP
PBX
IPBL
LAN
IPBL
IMS
RFP
IPBS
004
IPBS
6.
Figure
Figure 6. Ascom IP-DECT system overview
4.1
Configure LDAP
It is recommended to use the VoIP Gateway as an LDAP server.
Create an LDAP user in the VoIP Gateway:
1
Select LDAP.
2
Enter a user name and a password in the User and Password text fields respectively.
3
Select the Write Access check box.
4
Click "OK".
Set all IPBS/IPBLs to be LDAP replicators:
4.2
1
Select LDAP -> Replicator.
2
Enter the VoIP Gateway IP address in the Server text field.
3
Enter the user name and password in the User and Password text fields respectively.
4
Click "OK".
5
Repeat for all IPBS/IPBLs in the system.
Set PBX Password in the VoIP Gateway
Set PBX password in the VoIP Gateway:
1
Select PBX -> Password.
2
Enter and retype a password in the text fields.
3
Click "OK".
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Add System Object in the VoIP Gateway
A system object need to be added in the VoIP Gateway:
4.4
1
Select PBX -> Objects.
2
Select "DECT System" in the drop-down list and click "New".
3
Enter the IP-DECT system name in the Long Name and the Name text fields. Leave
all other fields empty.
4
Click "OK".
Enter system name in the IPBS/IPBL
1
Select DECT -> System.
2
Enter the system name in the System Name text field. This must be the same name
used as Long Name and Name in 4.3 Add System Object in the VoIP Gateway on
page 12.
3
Enter a password in the Password text field. This must be the PBX password
selected in 4.2 Set PBX Password in the VoIP Gateway on page 11.
4
Repeat for all IPBS/IPBLs in the system.
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Function description
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Handset Features
The following features are supported by IP-DECT system using the Ascom VoIP Gateway as
a gatekeeper:
• Calling Line Identification Presentation (CLIP) or Calling Name Identification
Presentation (CNIP)
The number or name of the calling party is shown in the cordless handset display.
• Call Transfer (CT)
The call is handed over to another subscriber.
• Call Forwarding Unconditional (CFU)*
• Call Forwarding on Busy (CFB)*
The call is forwarded to another subscriber, an external number, or voice mail, when
subscriber is busy.
• Call Forwarding No Reply (CFNR)*
The call is forwarded to another subscriber, an external number, or voice mail, after a
delay.
• Do Not Disturb (DND)
The call is forwarded to another subscriber, an external number, or voice mail, when
set.
• Call Waiting (CW)
• Call Completion Busy Subscribers (CCBS)*
On encountering a busy line, it notifies the caller when the line becomes free.
• Message Waiting Indication (MWI)
MWI is used to notify the end user that there is a message waiting in a voice mail
system.
• Enquiry
A call is put on hold while setting up a call to another subscriber.
• Brokering
Switching back and forth between two calls.
• DTMF dialling
• Ring signals
Different signals for internal and external calls. Calls from extensions within the main
PBX will be treated like internal calls.
• Idle display/In call display
*) Normally invoked from the handset but can also be programmed in the Ascom VoIP
Gateway.
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Function description
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Related Documents
System Description, Ascom IP-DECT System
TD 92375GB
Considerations for Ascom IP-DECT System Planning
TD 92422GB
Function Description, Configuration Notes for Cisco Call Manager TD 92424GB
in Ascom IP-DECT System
Installation and Operation Manual, IP-DECT Base Station &
IP-DECT Gateway
TD 92372GB
Installation and Operation Manual, VoIP Gateway
TD 92326GB
Function Description, Interactive Messaging (IM)
TD 92168GB
Function Description, Number Planning and Message Routing in TD 92554GB
Unite
Function Description, Absence Indication
TD 92101GB
Function Description, Applications based on Sending Data from
handset
TD 92095GB
Function Description, Alarm from Handsets
TD 92099GB
Function Description, DECT Location
TD 92177GB
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Function description
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TD 92407GB
Document History
For details in the latest version, see change bars in the document.
Version
Date
A
2006-06-02 First released version.
B
2007-01-15 New structure.
C
2007-04-20 IP-DECT Gateway added.
D
2007-12-10 Channel Distribution added.
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