ZyXEL Communications P-2602 Manuel D’Utilisation

Page de 427
P-2602H(W)(L)-DxA Series User’s Guide
154
Chapter 11 Voice
11.2.3.3  SIP Redirect Server
A SIP redirect server accepts SIP requests, translates the destination address to an IP address 
and sends the translated IP address back to the device that sent the request. Then the client 
device that originally sent the request can send requests to the IP address that it received back 
from the redirect server. Redirect servers do not initiate SIP requests. 
In the following example, you want to use client device A to call someone who is using client 
device C. 
Client device A sends a call invitation for C to the SIP redirect server (B).
The SIP redirect server sends the invitation back to A with C’s IP address (or domain 
name).
Client device A then sends the call invitation to client device C.
Figure 86   SIP Redirect Server
11.2.3.4  SIP Register Server
A SIP register server maintains a database of SIP identity-to-IP address (or domain name) 
mapping. The register server checks your user name and password when you register. 
11.3  SIP Settings Screen 
Use this screen to maintain basic information about each SIP account. You can also enable and 
disable each SIP account. To access this screen, click VoIP > SIP > SIP Settings.