This page gives a short overview about the SIP response codes for errors. A detailed description of the SIP response code can be found in "RFC 3261 - SIP: Session Initiation Protocol".
SIP Response Codes, Class 4: Request error
Code | Description |
---|---|
400 | Bad Request |
401 | Unauthorized |
402 | Payment Required |
403 | Forbidden |
404 | Not Found |
405 | Method Not Allowed |
406 | Not Acceptable |
407 | Proxy Authentication Required |
408 | Request Timeout |
410 | Gone |
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 |
SIP response codes, class 5: server-error
Code | Description |
---|---|
500 | Server Internal Error |
501 | Not Implemented |
502 | Bad Gateway |
503 | Service Unavailable |
504 | Server Time-out |
505 | Version Not Supported |
513 | Message Too Large |
SIP response codes, class 6: globale-error
Code | Description |
---|---|
600 | Busy Everywhere |
603 | Decline |
604 | Does Not Exist Anywhere |
606 | Not Acceptable |
Version 7.4.1.5939