HUAWEI HG256
User Guide
The HG256 supports voice services based on the Session Initiation Protocol (SIP).
The SIP is an application layer protocol used to create, modify, or end multimedia
sessions.
5.1 Networking
Figure 5-1 Network model of voice services
Proxy
Server
Equipment
Proxy Server
Registrar Server
BRAS
BRAS
HG256
Telephone
Description
A server that forwards requests or responses in place of the client
A server that receives registration re
Broadband Remote Access Server
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5
Configuration of VoIP
IP
Computer
5 Configuration of VoIP
Registrar
Server
quests
5-1