User's Manual

Figure 1: Avaya 1165E IP Deskphone with SIP Software
SIP overview
Session Initiation Protocol (SIP) is a signaling protocol used for establishing multimedia
sessions in an Internet Protocol (IP) network.
SIP is a text-based protocol similar to Hyper Text Transfer Protocol (HTTP) and Simple Mail
Transfer Protocol (SMTP). With the introduction of SIP to IP Deskphones, telephony integrates
easily with other Internet services. SIP allows the convergence of voice and multimedia.
Overview
26 SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012
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