Sip Responses; 1Xx Response - Information Responses; 2Xx Response - Successful Responses; Table C-5: 1Xx Sip Responses - AudioCodes Mediant 1000 User Manual

C.5

SIP Responses

The following SIP responses are supported by the gateway:

1xx Response - Information Responses

2xx Response - Successful Responses

3xx Response - Redirection Responses
4xx Response - Client Failure Responses
5xx Response - Server Failure Responses
6xx Response - Global Responses
C.5.1 1xx Response – Information Responses
1xx Response Supported
100 Trying Yes
180 Ringing Yes
181 Call is Yes
being
forwarded
182 Queued Yes
183 Session Yes
Progress
C.5.2 2xx Response – Successful Responses
2xx Response
200 OK
202 Accepted
SIP User's Manual

Table C-5: 1xx SIP Responses

Comments
The SIP gateway generates this response upon receiving of
Proceeding message from ISDN or immediately after placing a call for
CAS signaling.
The SIP gateway generates this response for an incoming INVITE
message. On receiving this response, the gateway waits for a 200 OK
response.
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.
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.
The SIP gateway generates this response if Early Media feature is
enabled and if the gateway plays a Ringback tone to IP

Table C-6: 2xx SIP Responses

Supported
Yes
Yes
408
Comments
Document #: LTRT-83301
Mediant 1000