Table Of Contents What is Session Initiation Protocol?
Components of SIP What is the Cisco SIP IP Phone? Cisco SIP IP
Phone Connections Connecting to the Network Connecting to Power
Using a Headset The Cisco SIP IP Phone with a Catalyst Switch
This chapter contains the following information about the Cisco
SIP IP phone: •What is Session Initiation Protocol? •What is the
Cisco SIP IP Phone? •Cisco SIP IP Phone Connections •The Cisco
SIP IP Phone with a Catalyst Switch What is Session Initiation
Protocol? Session Initiation Protocol (SIP) is the Internet
Engineering Task Force's (IETF's) standard for multimedia
conferencing over IP. SIP is an ASCII-based, application-layer
control protocol (defined in RFC 2543) that can be used to
establish, maintain, and terminate calls between two or more end
points. Like other VoIP protocols, SIP is designed to address
the functions of signaling and session management within a
packet telephony network. Signaling allows call information to
be carried across network boundaries