2
Chapter 1: Introduction
IP Telephony System Overview
SPA IP Phone
IP Telephony System Overview
While your phone has traditional features, it uses the Voice over Internet Protocol (VoIP) for communications with
other phones. Your phone is based upon industry standard VoIP and will work with Session Initiation Protocol
(SIP) compliant VoIP networks. The diagram below provides an example of a VoIP network design with 16 IP
phones.
$36
Q$RODJ VHFLYH'
RU%DEGGQD
HWXR5PHGR0U
PRFHOH7
PRFHOH7
NURZWH1
NURZWH1
1763
1763
Q,QUHWHW
Q,QUHWHW
,R93
,R93
NURZWH1
NURZWH1
,37HOHSKRQ\
6\VWHP