SIP Responses

 

 

SIP Responses:

1xx Informational Responses
2xx Successful Responses
3xx Redirection Responses
4xx Request Failure responses
5xx Server Failure Responses
6xx Global Failure responses

 

1xx Informational Responses
.               e.g.        100 Trying
.                               180 Ringing
.                               181 Call is being forwarded
.                               182 Queued
.                               183 Session Progress
2xx Successful Responses
.               e.g.        200 OK
3xx Redirection Responses
.               e.g.        300 Use Proxy
.                               301 Moved Perminantly
.                               302 Moved Temporarily
.                               305 Use Proxy
.                               380 Alternaticve Service
4xx Request Failure responses
.               e.g.        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 timed out
.                               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 not available
.                               481 Call leg/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
5xx Server Failure Responses
.               e.g.       500 Internal Server Error
.                               501 Not Implemented
.                               502 Bad Gateway
.                               503 Service unavailable
.                               504 Server timeout
.                               505 SIP Version not Supported
.                               513 Message too large
6xx Global Failure responses
.               e.g.        600 Busy Everywhere
.                               603 Decline
.                               604 Does not exist anywhere
.                               606 Not Acceptable

Source:
Mc-Graw-Hill: Carier Grade Voice Over IP by Daniel Collins
Pg 174-175

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