Avaya 1603SW User Guide
Issue 1 June 2010
11
Chapter 2: Administration Overview and
Requirements
1600 Series IP Telephones
The 1603SW-I IP Deskphones currently support the H.323 signaling protocol and the SIP
signaling protocol.
signaling protocol.
The H.323 standard provides for real time audio, video, and data communications transmission
over a packet network. An H.323 telephone protocol stack comprises several protocols:
over a packet network. An H.323 telephone protocol stack comprises several protocols:
●
H.225 for registration, admission, status (RAS), and call signaling,
●
H.245 for control signaling,
●
Real Time Transfer Protocol (RTP), and
●
Real Time Control Protocol (RTCP)
SIP was developed by the IETF. Like H.323, SIP provides for real time audio, video, and data
communications transmission over a packet network. SIP uses various messages, or methods,
to provide:
communications transmission over a packet network. SIP uses various messages, or methods,
to provide:
●
Registration (REGISTER),
●
Call signaling (INVITE, BYE)
●
Control signaling (SUBSCRIBE, NOTIFY)
The 1603SW-I SIP Deskphones use built-in Avaya SIP Certificates for trust management.
The 1603SW-I SIP Deskphones do not support Media Encryption (SRTP).
The 1603SW-I IP Deskphones are loaded with either H.323 or SIP software as part of initial
16xxupgrade.txt file administration and initialization during installation. Post-installation,
software upgrades automatically download using the proper signaling protocol.
16xxupgrade.txt file administration and initialization during installation. Post-installation,
software upgrades automatically download using the proper signaling protocol.