User`s manual

Mediant 2000 & TP-1610 & TP-260
SIP User's Manual 348 Document #: LTRT-68805
C.5.1 1xx Response – Information Responses
Table C-5: 1xx SIP Responses
1xx Response Supported Comments
100 Trying Yes The SIP gateway generates this response upon receiving of
Proceeding message from ISDN or immediately after placing a call for
CAS signaling.
180 Ringing Yes The SIP gateway generates this response for an incoming INVITE
message. On receiving this response, the gateway waits for a 200 OK
response.
181 Call is
being
forwarded
Yes The SIP gateway does not generate these responses. However, the
gateway does receive them. The gateway processes these responses
the same way that it processes the 100 Trying response.
182 Queued Yes The SIP gateway generates this response in Call Waiting service.
When SIP gateway receives a 182 response, it plays a special waiting
Ringback tone to TEL side.
183 Session
Progress
Yes The SIP gateway generates this response if Early Media feature is
enabled and if the gateway plays a Ringback tone to IP
C.5.2 2xx Response – Successful Responses
Table C-6: 2xx SIP Responses
2xx Response Supported Comments
200 OK Yes
202 Accepted Yes
C.5.3 3xx Response – Redirection Responses
Table C-7: 3xx SIP Responses
3xx Response Supported Comments
300 Multiple Choice Yes
The gateway responds with an ACK and resends the request to
first in the contact list, new address.
301
Moved
Permanently
Yes
The gateway responds with an ACK and resends the request to
new address.
302
Moved
Temporarily
Yes
The SIP gateway generates this response when call forward is
used, to redirect the call to another destination. If such response
is received, the calling gateway initiates an INVITE message to
the new destination.
305 Use Proxy Yes
The gateway responds with an ACK and resends the request to
new address.
380
Alternate
Service
Yes "