SIP Status Codes

SIP Status Codes

This is a list of the known SIP status codes

100 - Trying
180 - Ringing
181 - Call Being Forwarded
182 - Call Queued

183 - Session Progress

200 - OK

202 - Accepted

300 - Multiple Choices
301 - Moved Permanently
302 - Moved Temporarily
305 - Use Proxy

380 - Alternative Service

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
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

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

600 - Busy Everywhere
603 - Declined
604 - Does Not Exist Anywhere
606 - Not Acceptable