User Manual - Configuration Guide (Volume 3)

Chapter 4

Versatile Routing Platform

GK Client Configuration

Chapter 4 GK Client Configuration

4.1 Overview of GK Client

IP telephone uses Internet as the medium to transmit voice information. IP telephone GateWay (GW for short) lies between Public Switched Telephone Network (PSTN) and Internet access sites. It compresses the voice signal on PSTN network and transports it to the opposite end IP telephone gateway via Internet. Meanwhile, it receives the IP packet from Internet and decompresses it to restore to voice signal of PSTN network. The implementation of IP telephone function on router expands the function of the router, which indicates the trend of the gradual expansion from data service to voice service.

As defined in ITU-T recommendation, GateKeeper (GK for short) is a H.323 entity that can provide such functions as address translation, admission control, bandwidth control and management, area management, security check, call control signaling and call management, and sometimes routing control and billing functions, for the H.323 terminal, GW or some Multipoint Control Unit (MCU) of Local Area Network or Wide Area Network. In an area managed by GK, to all the calls, GK not only provides call service control and also serves as the central control point.

According to the composition of the entity that implements complete GK function, it can be classified into Client end and Server end. Taking router as its hardware medium, GK Client entity generally performs the configuration of IP voice gateway function for the router through the command line interface, and interacts with GK Server by RAS signaling, thus enable GK Server to provide services such as address translation, admission control, bandwidth management, and the management of router IP voice gateway. GK Server can be implemented on SUN workstation or routers.

4.2 Configuration of GK Client

4.2.1 Configuration Task List of GK Client

The configuration tasks of GK Client include:

zConfigure one interface as H.323 gateway interface

zActivate or deactivate GK Client function

zConfigure alias of the gateway

zConfigure the GK Server name and address corresponding to the gateway

zConfigure tech-prefix

zConfigure GK interconnection mode

4.2.2Configuring One Interface as H.323 Gateway Interface

The router communicates with GK Server as voice gateway device. It needs to specify the interface that communicates with GK server for the router. The interface specified is H.323 gateway interface. Ethernet port, serial port, etc., can all become H.323 gateway

4-1

Page 247
Image 247
Huawei v200r001 user manual GK Client Configuration, Overview of GK Client, Configuration of GK Client