Sip Responses - Yealink SIP-T48G Administrator's Manual

Method
RSeq
Session-Expires
Subscription-State
Supported
To
User-Agent
Via
The following SIP responses are supported:
In the following table, a "Yes" in the Supported column means the header is sent and
Note
properly parsed. The phone may not actually generate the response.
1xx Response—Information Responses
1xx Response
100 Trying
180 Ringing
181 Call Is Being Forwarded
183 Session Progress
2xx Response—Successful Responses
2xx Response
200 OK
202 Accepted
3xx Response—Redirection Responses
3xx Response
300 Multiple Choices
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Supported
Yes
Yes
Yes
Yes
Supported
Yes
Yes
Supported
Yes
Appendix
Notes
Notes
Notes
In REFER transfer.
Notes
263