User's Manual

Method Supported? Comments
support of UPDATE messages is not a configurable
feature.
SIP responses
The following SIP responses are also supported:
• 1xx Response—Information Responses
• 2xx Responses—Successful Responses
• 3xx Response—Request Failure Responses
• 4xx Response—Server Failure Responses
• 6xx Response—Global Responses
1xx Response—Information Responses
1xx Response Send Receive Comments
100 Trying Yes Yes
The IP Deskphone can generate
this response for an incoming
INVITE if it has taken too long to
generate a 180 response. Upon
receiving this response, the
IP Deskphone waits for a 180
Ringing, 183 Session Progress, or
200 OK responses.
180 Ringing Yes Yes
The IP Deskphone begins local
ringing through the active
transducer.
181 Call is being
forwarded
No Yes See 183.
182 Queued No Yes See 183.
183 Session
progress
No Yes
The IP Deskphone accepts a 183
response with SDP to allow for
early-media negotiation.
SIP messages supported by the IP Deskphone
312 SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012
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