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GL-9
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Glossary
S
SCCP
Skinny Call Control Protocol. A VoIP protocol utilized by a CallManager
server.
SDP
Session Definition Protocol. An IETF protocol for the definition of multimedia
services. SDP messages can be part of SIP, MGCP, and SCCP and messages.
SIP
Session Initiation Protocol. Protocol developed by the IETF MMUSIC Working
Group as an alternative to H.323. SIP features are compliant with IETF
RFC 2543, published in March 1999. SIP equips platforms to signal the setup of
voice and multimedia calls over IP networks.
SIP endpoint
A terminal or gateway that acts as a source or sink of SIP voice data. An
endpoint can call or be called, and it generates or terminates the information
stream.
SLIC
Subscriber Line Interface Circuit. An integrated circuit providing central
office-like telephone interface functionality.
SNA
Systems Network Architecture. Large, complex, feature-rich network
architecture developed in the 1970s by IBM. Similar in some respects to the OSI
reference model but with a number of differences. SNA essentially is composed
of seven layers.
SOHO
Small office, home office. Networking solutions and access technologies for
offices that are not directly connected to large corporate networks.
T
TCP
Transmission Control Protocol. Connection-oriented transport layer protocol
that provides reliable full-duplex data transmission. TCP is part of the TCP/IP
protocol stack.