25-isdn bra, pra user enablement guide

Internal Use Only▲

ISDN BRA and PRA User Enablement Guide

Drafted by: Peng Mingbi

Reviewed by: Wang Gaoyuan

Fixed Network PSTN Customer Service Dept., ZTE

Corporation

ZTE Corporation Copyright Reserved, No Spreading Abroad unless Permitted. of 21


Revision Records

Docum

ent S/N

Version

No.

Drafted

by/Modified

by

Reviewe

d by

Drafting/

Revision Date

Reason for

RevisionRevised Content

None V1.0 Peng MingbiWang

Gaoyuan2008-01-01

Topic

Document

Revision



ContentsCHAPTER 1 ISDN USER OVERVIEW...................................................................................................1

1.1 ISDN DESCRIPTION..........................................................................................................................1

1.2 ISDN BRA USER APPLICATION SPECIFICATION...............................................................................2

1.3 ISDN PRA USER APPLICATION SPECIFICATION...............................................................................4

CHAPTER 2 CONFIGURATION OF SS1B IN BRA USER MODE...............................................5

2.1 NEW GATEWAY ZONE......................................................................................................................5

2.2 ADDING DATA AREA CORRESPONDING TO ZONE...........................................................................6

2.3 ADDING PROCESSING BOARD...........................................................................................................7

2.4 ADDING NODE..................................................................................................................................8

2.5 CONFIGURING DEFAULT PROPERTY MODULE...................................................................................9

2.6 USER DATA CONFIGURATION, CONFIGURING LOCAL OFFICE USER DATA FIRST...........................10

2.7 USER DATA CONFIGURATION, USER CONFIGURATION\ISDN USER CONFIGURATION...................11

2.8 TIDNAME DATA CONFIGURATION...................................................................................................11

2.9 SCTP CONNECTION CONFIGURATION...........................................................................................13

CHAPTER 3 CONFIGURATION OF SS1B IN PRA USER MODE...............................................15

3.1 ADDING USER..............................................................................................................................15

3.2 ISDN USER CONFIGURATION.......................................................................................................15

3.3 ADDING TID RESOURCE CONFIGURATION...................................................................................17

3.4 Other Notes..................................................................................................................................18



Chapter 一 ISDN User Overview

Summary

This chapter focuses on the two rate interfaces of ISDN provided for users: BRA and

PRA.BRA (Basic Rate Access) consists of 2 B channels (64Kbps) and 1 D channel

(16kbps).PRA (Primary Rate Access) consists of 30 B channels (64Kbps) and 1 D channel

(64kbps).This text will describe the technical principal of the 2 user modes of ISDN. Please

refer to chapter 2 and chapter 3 for the data configuration of SS1B and here will not

mention it again.

一 .1 ISDN Description

ISDN is the abbreviation of “Integrated Service Digital Network” which is the digital data service

based on circuit switching, and it is used to provide enhanced voice and data service. In ISDN, the signal

transferred and processed is all digital signal, and the end-to-end digital connection is provided. Not

only the voice transmission service, which is same as that in current telephone network, is provided, but

also the integrated communication services: image, data and fax, etc are provided. The interfaces of

narrowband ISDN are divided into basic rate interface (BRI) 2B+D and primary rate interface (PRI)

30B+D.D channel is used to protect synchronization of user and ISDN switch, and to bear signaling for

establishing and releasing calls.

ISDN is mainly used in the following 4 parts:

Provide Internet service for family user. A standard ISDN BRI channel can reach the rate of

128 (64 x 2) Kbps.

Used as the terminal circuit of large-scale dialing access server. Connecting multiple dialing

users to an access server via ISDN circuit is a standard method.

Used for dialing backup. ISDN BRI and PRI circuits can all provide backup data channels for

route.

Used for voice and digital call services, including different ISDN supplementary services.

In version ZXSS10 SS1 V2.0.1.01, SS and gateway (M100 and MSAG) have provided the function

of accessing traditional ISDN 2B+D users, multiple functions of 2B+D users can be realized: basic call

function (the basic service types specified by all ITU-T Q.931, including voice, 3.1KHz and 64K digital

no limit), dial-up network access function, display type services (CLIP, CLIR, COLP and COLR), non

display type services (CFU, CFB and CFNR).The functions are completely up to Chinese National

Standard ― related content of YDN 034.3 and YDN 034.4, and the standard ITU-T Q.931 is also

referred.



一 .2 ISDN BRA User Application Specification

When the current SS provides BRA access service, the following devices and protocols are

included:

1. Softswitch Device

During the call supporting 2B+D, do not add additional hardware modules at SS side, only add or

modify software modules.

IUA adaptation module: it locates on SS and it is in charge of the communication between

LAPD module on gateway and DSS1 layer 3 on SS.

SCTP module: it transfers IUA protocol data reliably between gateway and SS.

Call control module: it is on SS and is in charge of BRA basic call flow control and

supplementary service call flow control.

H248 adapter module: it is in charge of interaction with SS, and it is used to transfer media

control commands to call control module in BRA access call procedure.

Database module: it describes 2B+D users and circuit logically, and describes services of

2B+D users, also it describes data of IUA protocol.

OMM: it provides 2B+D user configuration interface and 2B+D call O&M interface on SS.

Fig. 1.2-1 Software Module Working Principle

2. Gateway



Gateway (M100) is in SS system, all the terminal devices in traditional signaling network are

connected to the gateway, and the corresponding access devices are needed on the related gateways. In

order to support BRA access mode, the follows are needed on gateway:

2B+D digital subscriber line circuit (DSLC)

RTP resource board (DMV)

Voice resource board (ASIG)

Center process unit (MP)

Network Board (TNET)

Communication Board (COMM)

The software modules include:

IUA adaptation module: it locates on gateway and it is in charge of the communication

between LAPD module on gateway and DSS1 layer 3 on SS.

SCTP module: it transfers IUA protocol data reliably between gateway and SS.

LAPD module: it locates on 2B+D subscriber board on gateway, and it is responsible for

establishing a reliable signaling channel between gateway and ISDN terminal.

Media control module: it is in charge of detailed connections on gateway in BRA calls, and it

controls the functions of playback and media conversion.

H248 adapter module: it is in charge of interaction with SS, and it is used to transfer media

control commands to media control module in BRA access call procedure.

Drive module: it is the drive for 2B+D board and for other resource boards.

Database module: it describes 2B+D subscriber board physically and logically, and it

describes the data of IUA protocol.

OMM: it provides 2B+D user configuration interface and 2B+D call O&M interface on

gateway.

3. ISDN Terminal

ISDN terminal contains the functions of DSS1 signaling system from layer 1 to layer 3. Because

the application ranges are different, and the applications on the layers are different. Terminal is variable:

the interfaces of different terminals are same, such as ISDN telephone and PC telephone. Every BRA

port can be connected with multiple different ISDN terminals. The numbers and sub-addresses can be

configured on terminal to distinguish different terminals under one port. The 2 B channels can be used

separately, and they can also be bound together to be one channel of 128K (it is not provided

temporarily) when making different voice or data calls. The user’s dialup mode includes enbloc and

overlap. The number information is transferred via signaling channel.



一 .3 ISDN PRA User Application Specification

1. The following figure shows the application in SS:

Fig. 1.3-2 SS Application

2. Requirements of ISDN PRA User Mode

The user mode is configured in order to realize the PBX playback. Generally speaking, PBX will

play tones itself, but some PBX need switches to play tones, then if it is configured in trunk mode, the

dial tone and ring back tone, etc will not be played, but the call can be made normally. If it is configured

in user mode, then SS will indicate PBX to play basic tones for users.



Chapter 二 Configuration of SS1b in BRA

User Mode

Summary

The basic steps for data configuration are as follows. Take gateway equipment of M100 as

an example (configure MSAG as AG is alright).

二 .1 New Gateway Zone

Fig. 2.1-3 New Gateway Zone



二 .2 Adding Data Area Corresponding to Zone

Fig. 2.2-4 Adding Data Areas Corresponding to Zones

DSS1 data area must be added and used for Q.931.



二 .3 Adding Processing Board

Fig. 2.3-5 Configuration of Gateway Zone to LSQ



二 .4 Adding Node

Fig. 2.4-6 New Nodes



二 .5 Configuring Default Property Module

Fig. 2.5-7 TID Default Property Configuration

Please note to add 23-BRA.



二 .6 User Data Configuration, Configuring Local Office User Data

First

Fig. 2.6-8 New User Configuration



二 .7 User Data Configuration, User Configuration\ISDN User

Configuration

Fig. 2.7-9 New ISDN User Configuration

For Caller ID Display Mode, select FROM Local SS, and it is lawful user.

For Start D-Channel No., it is negotiated by SS with M100 or MSAG, generally it starts from

100.

Special configuration, the number negotiated by customer and user, and it is used when the

numbers displayed is a lawful user number and does not contain caller ID authentication.

After the data configuration is finished, query the miscellaneous property of the number

from 6160000 to 6160099 in local office user data, and the ISDN flag will be found.

二 .8 Tidname Data Configuration

RTP resource configuration: it should be same as M100 of MSAG.



Fig. 2.8-10 New TIDNAME

User resource configuration: name the resource as you like. The data configuration here is only

provided for services, if only the resources correspond to the numbers.


BRA user resource configuration: it should be same as M100 of MSAG.




Group No.: it corresponds to the D channel No. of user, and the two are same.

No. In Group: it means the serial numbers of 2 B channels in group, and the 2 B channels

correspond to a D channel. The serial number starts from 1.Currently the data is added in

batch, the data only can be added 2 by 2, that is only 1 D channel and 2 B channels of one

user resource can be added at one time.

二 .9 SCTP Connection Configuration



Fig. 2.9-13 New SCTP Configuration

Perform the relevant configuration based on the original SCTP link data.

Remote Connection Equipment Node No.: node of M100 or MSAG.

Local Port: port of SS, same as that of M100 or MSAG.

Remote Port: port of MASG, same as that of M100 or MSAG.

Protocol type: UDP (the following version will support IP, write dead 9899 port in the port

program of UDP).Enable IUA, and the IUA bearing mode should same as that of M100 or

MSAG.



Chapter 三 Configuration of SS1b in PRA

User Mode

Summary

The configurations of gateway zone, data area, node and SCTP, etc are same as those in

BRA user mode, please refer to the configuration in BRA user mode, we only provide the

differences here.

三 .1 Adding User

Add user, the node is TG node, select Primary Group PRA User in Other Prop., as shown in the

following figure:

Fig. 3.1-14 Local Office User Configuration

三 .2 ISDN User Configuration

Add ISDN user in “Data Configuration->User Configuration->ISDN User Configuration”. Fill the

user number added in last step in start/end user number, select NO for BRA user, select a unused number

for D channel No., the D channel No. is similar to the trunk group No., the global D channel No. is set



by the switch in the network segment for all the D channels, and it is not required here. As shown in

figure:

Fig. 3.2-15 New ISDN User Configuration

Then add B channel in channel property, fill the number from 1 to 31 and the number is added

automatically. Please note there isn’t No.16 B channel, because No.16 B channel is used as the D

channel, and it supports signaling, so it is called 30B+D.

Fig. 3.2-16 ISDN User Configuration

Click on [Channel Property] and the following interface pops up:



Fig. 3.2-17 Channel Property

三 .3 Adding TID Resource Configuration

RTP resource is same as that in trunk configuration, and select 17-PRI 30B+D in stead of 1 for MG

resource type. The Group No. is D channel No., and the No. In Group is the Start No. of B channel. The

resource name is same as that of gateway is alright.




So far, the PRA user data configuration on SS1b is finished.

三 .4 Other Notes

The default property and the trunk configurations are same.

If interconnected with 9000, 9000 will register as ROOT, then the wildcard should be

configured, but the current version does not support it (including version 40), the type 17

cannot be added, and it is useless if it is added in the background.

The users under PBX need Caller ID Display function, and the service registered is “Caller Line

ID Provide”.

If there are multiple users, only the first step of adding user is enough, and it is no need to add

ISDN user and add D channel for every user.

If PBX is calling party, the number displayed for the called party is not the number

configured on SS but the number configured on PBX.


25-isdn bra, pra user enablement guide

Documents