Huawei AR1200 Series Manuale utente

Huawei AR1200 Series Enterprise Routers

V200R001C00

Configuration Guide - Voice

Issue 03

Date 2011-09-30

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,

and recommendations in this document are provided "AS IS" without warranties, guarantees or representations

of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

About This Document

Intended Audience

This document provides the basic concepts, configuration procedures, and configuration

examples in different application scenarios of the voice feature supported by the AR1200 device.

This document describes how to configure the voice feature.

This document is intended for:

lData configuration engineers

lCommissioning engineers

lNetwork monitoring engineers

lSystem maintenance engineers

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol Description

DANGER

Indicates a hazard with a high level of risk, which if not

avoided, will result in death or serious injury.

WARNING

Indicates a hazard with a medium or low level of risk, which

if not avoided, could result in minor or moderate injury.

CAUTION

Indicates a potentially hazardous situation, which if not

avoided, could result in equipment damage, data loss,

performance degradation, or unexpected results.

TIP

Indicates a tip that may help you solve a problem or save

time.

NOTE

Provides additional information to emphasize or supplement

important points of the main text.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice About This Document

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

Command Conventions

The command conventions that may be found in this document are defined as follows.

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... } Optional items are grouped in braces and separated by vertical

bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated by vertical

bars. One item is selected or no item is selected.

{ x | y | ... }*Optional items are grouped in braces and separated by vertical

bars. A minimum of one item or a maximum of all items can be

selected.

[ x | y | ... ]*Optional items are grouped in brackets and separated by vertical

bars. Several items or no item can be selected.

&<1-n> The parameter before the & sign can be repeated 1 to n times.

# A line starting with the # sign is comments.

Change History

Changes between document issues are cumulative. Therefore, the latest document version

contains all updates made to previous versions.

Changes in Issue 03 (2011-09-30)

Based on issue 02 (2011-06-25), the document is updated as follows:

The following information is modified:

lThe configuration guide optimizes the SIP AG configuration.

Changes in Issue 02 (2011-06-25)

Based on issue 01 (2011-03-30), the document is updated as follows:

The following information is modified:

lExample for Configuring a SIP AG

l(Optional) Configuring the Three-Party Service for a SIPAG User

The following information is deleted:

lThe configuration guide of PBX is deleted.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice About This Document

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

iii

Changes in Issue 01 (2011-03-30)

Initial commercial release.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice About This Document

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

Contents

About This Document.....................................................................................................................ii

1 SIPAG Configuration...................................................................................................................1

1.1 SIP AG Overview...............................................................................................................................................2

1.2 SIP AG Features Supported by the AR1200......................................................................................................2

1.3 Configuring the AR1200 to Work in SIP AG Mode..........................................................................................5

1.4 Configuring a SIP AG Interface.........................................................................................................................7

1.4.1 Establishing the Configuration Task.........................................................................................................7

1.4.2 Configuring Media and Signaling IP Address Pools.................................................................................7

1.4.3 Setting Parameters on the SIP AG Interface.............................................................................................8

1.4.4 Checking the Configuration.....................................................................................................................15

1.5 (Optional) Setting Parameters for Voice Interfaces..........................................................................................18

1.5.1 Setting Parameters for an FXS Interface.................................................................................................18

1.5.2 Setting Parameters for an FXO Interface.................................................................................................20

1.6 (Optional) Setting Voice Parameters on a SIP AG...........................................................................................22

1.6.1 Setting System Parameters......................................................................................................................22

1.6.2 Setting SIP Stack Parameters..................................................................................................................31

1.6.3 Setting DSP Parameters...........................................................................................................................34

1.7 Configuring a SIPAG User...............................................................................................................................46

1.7.1 Establishing the Configuration Task.......................................................................................................46

1.7.2 Setting Parameters for a SIP AG User.....................................................................................................47

1.7.3 Configuring a SIP AG User Group..........................................................................................................49

1.7.4 (Optional) Configuring Functions or Services in a SIP Service Data Profile.........................................51

1.7.5 Checking the Configuration.....................................................................................................................53

1.8 Resetting a SIP AG...........................................................................................................................................54

1.9 Maintaining a SIP AG......................................................................................................................................55

1.9.1 Clearing SIP AG Statistics......................................................................................................................55

1.10 Configuration Examples.................................................................................................................................56

1.10.1 Example for Configuring a SIP AG......................................................................................................56

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice Contents

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

1 SIPAG Configuration

About This Chapter

This chapter describes the concepts and configuration of SIPAG, and provides a configuration

example.

1.1 SIP AG Overview

This section describes the SIP AG in VoIP applications.

1.2 SIP AG Features Supported by the AR1200

This section describes SIP AG features supported by the AR1200.

1.3 Configuring the AR1200 to Work in SIP AG Mode

Before configuring SIP AG service features, configure the AR1200 to work in SIP AG mode.

1.4 Configuring a SIP AG Interface

This section describes how to configure a SIP AG interface.

1.5 (Optional) Setting Parameters for Voice Interfaces

This section describes how to set parameters for FXS interfaces and FXO interfaces.

1.6 (Optional) Setting Voice Parameters on a SIP AG

This section describes how to set voice parameters on a SIP AG.

1.7 Configuring a SIPAG User

This section describes how to configure a SIPAG user.

1.8 Resetting a SIP AG

This section describes how to reset a SIP AG.

1.9 Maintaining a SIP AG

This section describes how to maintain a SIP AG.

1.10 Configuration Examples

This section provides a SIPAG configuration example.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice 1 SIPAG Configuration

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

1.1 SIP AG Overview

This section describes the SIP AG in VoIP applications.

VoIP

On the Public Switched Telephone (PSTN), telephone lines are occupied exclusively. The fees

for toll calls are high.

To reduce data and voice fees and meet service requirements, voice over IP (VoIP) is used.

VoIP transmits voice services over the IP network. In VoIP, a voice gateway encapsulates voice

signals into frames and transmits them as IP packets. Currently, IP phone gateways implement

communication between the PSTN network and IP network. As PC-to-phone, phone-to-PC, and

phone-to-phone technologies have developed, the voice quality is improved greatly. VoIP can

meet commercial requirements.

Voice Gateway

The IP network is a packet switched network. The transmission costs on the IP network are lower

than those on the PSTN; therefore, VoIP will take place traditional voice phones gradually.

Replacing all phone networks with VoIP will take high costs. The step-by-step migration

solution is recommended.

In most enterprise voice solutions, phone networks of branches are reserved and the IP network

is used between branches.

In the step-by-step migration solution, a voice gateway is required to connect the two types of

networks. A router is often used as the voice gateway.

SIP

The Session Initiation Protocol (SIP) is a text-based signaling protocol. SIP messages are

classified into request and response messages. SIP can be used for creating, modifying, and

terminating two-party or multiparty sessions. SIP can be used for multimedia conferences,

remote education, and Internet calls.

SIPAG

A SIP access gateway (SIP AG) is a voice gateway that exchanges SIP signals with other devices

on the PSTN/ISDN and IP network. It can implement VoIP functions.

1.2 SIP AG Features Supported by the AR1200

This section describes SIP AG features supported by the AR1200.

Using a SIP AG as a Voice Gateway

As shown in Figure 1-1, a SIP AG functions as an IP voice gateway to implement

communication between the IP network and the PSTN or ISDN. The usage scenarios are as

follows:

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice 1 SIPAG Configuration

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

lA user connects to the SIP AG through the PSTN. The SIP AG converts analog signals into

digital signals and compresses and packetizes the digital signals so that the voice packets

can be transmitted on the IP network.

lVoice packets are transmitted to the SIP AG through the IP network. The IP voice gateway

of the called party converts the voice packets into analog voice signals and transmits them

to the terminal of the called party through the PSTN.

Figure 1-1 SIP AG as a voice gateway

SIPAG Eth1/0/0

IMS

POTS Modem FAX

SIP AG call flow

The SIP AG call flow is as follows:

1. A user picks up the phone and the SIP AG detects offhook signals.

2. The DSP module of the SIP AG generates a dial tone.

3. The user hears the dial tone played by the session application of the SIP AG and starts to

dial up.

4. The session application of the SIP AG collects the number dialed by the user.

5. The session application of the SIP AG matches the number with preconfigured called

number profiles.

6. When the voice gateway of the calling party successfully matches the number with a

preconfigured called number profile, the number is mapped to the voice gateway of the

called party.

7. The SIP AG initiates a call over the IMS and establishes a logical channel for each call.

Then the channel is used to send and receive voice data.

8. The IMS searches for the destination phone and initiates a call.

9. After the called party picks up the phone, a call is set up. After the calling party or called

party hangs up the phone, the call is ended.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice 1 SIPAG Configuration

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

Voice Services Supported by the SIP AG

The SIP AG supports the basic voice service and developed services such as the three-party

service and call waiting service. Among these services, some voice services need to be

configured on the SIP AG.

Service Type Introduction Configure

d on the

SIP AG or

Not

Basic voice service The basic voice service is the basic call connection

function, including intra-office calls, local calls,

national toll calls, international toll calls, and transit

calls.

Yes

Three-party service The third-party service allows a calling party or called

party in a conversation to call a third party without

ending the current conversation. Then the calling party

or original called party can implement a three-party

conversation or talk to the other two parties.

Yes

Call waiting

service

When user A is talking with user B over the phone and

at this moment user C is calling user A, user A hears a

call waiting tone, indicating that there is a call waiting

for user A.

Yes

MWI service The message waiting indicator (MWI) service allows a

user to read unread messages or leave messages. When

the called user is busy, the MWI is on, indicating that

there are leave messages.

Yes

Malicious call

identification

(MCID) service

The user that registers the MCID service with the carrier

can query the phone number of the attacker that initiates

malicious calls after performing relevant operations.

Yes

Call transfer

service

The call transfer service allows the called party to

transfer an incoming call to a third party by pressing the

hookflash so that the calling party establishes a

connection with a new called party.

Yes

Call conference

service

The call conference service allows more than three

parties to communicate together.

Yes

Calling line

identification

presentation

(CLIP) service

The CLIP service displays the calling number in onhook

state or offhook state (for call waiting). The displayed

information includes the phone number, name, date, and

time.

Calling line

identification

restriction (CLIR)

service

The CLIR service displays the phone number of a

calling party on the terminal of a called party.

Distinctive ringing

service

The distinctive ringing service plays different ring tones

for incoming calls.

Huawei AR1200 Series Enterprise Routers

Configuration Guide - Voice 1 SIPAG Configuration

Issue 03 (2011-09-30) Huawei Proprietary and Confidential

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