Zyxel-communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNL Instrukcja Użytkownika Pobierz pdf (Strona 167)

100

101

P-2602HWNLI User’s Guide

Chapter 11 Voice 167

11.2.3.1 SIP User Agent

A SIP user agent can make and receive VoIP telephone calls. This means that SIP can be used

for peer-to-peer communications even though it is a client-server protocol. In the following

figure, either A or B can act as a SIP user agent client to initiate a call. A and B can also both

act as a SIP user agent to receive the call.

Figure 89 SIP User Agent

11.2.3.2 SIP Proxy Server

A SIP proxy server receives requests from clients and forwards them to another server.

In the following example, you want to use client device A to call someone who is using client

device C.

1 The client device (A in the figure) sends a call invitation to the SIP proxy server (B).

2 The SIP proxy server forwards the call invitation to C.

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 441 442

Komentarze do niniejszej Instrukcji

Brak uwag

Zyxel-communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNL Instrukcja Użytkownika Strona 167

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Sprzęt komputerowy Zyxel-communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNL