Yealink SIP-T2 SERIES Administrator's Manual page 997

4xx Response
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication
Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
413 Request Entity Too Large
414 Request-URI Too Long
415 Unsupported Media Type
416 Unsupported URI Scheme
420 Bad Extension
421 Extension Required
423 Interval Too Brief
480 Temporarily Unavailable
481 Call/Transaction Does Not
Exist
482 Loop Detected
483 Too Many Hops
484 Address Incomplete
485 Ambiguous
486 Busy Here
487 Request Terminated
488 Not Acceptable Here
491 Request Pending
493 Undecipherable
Supported
Yes
Yes
No
Yes
Yes
No
No
No
No
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
No
No
Appendix
Notes
975