Setting The Voip Parameters; Voice Service Introduction; Networking - Huawei HG655d User Manual

6 Setting the VoIP Parameters

6.1 Voice Service Introduction

The HG655d 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.
The HG655d enables voice service interworking between the Internet and the Public
Switched Telephone Network (PSTN).

6.2 Networking

Figure 6-1 shows the network model of voice services.
Figure 6-1 Network model of voice services
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