HUAWEI HG256
User Guide
5 Configuration of VoIP
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
5-1
5 Configuration of VoIP
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
HG256
Telephone
BRAS
Computer
IP
Proxy
Server
Registrar
Server
Equipment Description
Proxy Server A server that forwards requests or responses in place of the client
Registrar Server quests A server that receives registration re
BRAS Broadband Remote Access Server
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