User's Manual 304 Document #: LTRT-68822
Mediant 2000
Mapping of SIP Response to ISDN Release Reason
SIP
Response
Description
ISDN Release
Reason
Description
400* Bad request 31 Normal, unspecified
401 Unauthorized 21 Call rejected
402 Payment required 21 Call rejected
403 Forbidden 21 Call rejected
404 Not found 1 Unallocated number
405 Method not allowed 63 Service/option unavailable
406 Not acceptable 79 Service/option not implemented
407
Proxy authentication
required
21 Call rejected
408 Request timeout 102 Recovery on timer expiry
409 Conflict 41 Temporary failure
410 Gone 22 Number changed w/o diagnostic
411 Length required 127 Interworking
413 Request entity too long 127 Interworking
414 Request URI too long 127 Interworking
415 Unsupported media type 79 Service/option not implemented
420 Bad extension 127 Interworking
480 Temporarily unavailable 18 No user responding
481*
Call leg/transaction doesn’t
exist
127 Interworking
482* Loop detected 127 Interworking
483 Too many hops 127 Interworking
484 Address incomplete 28 Invalid number format
485 Ambiguous 1 Unallocated number
486 Busy here 17 User busy
488 Not acceptable here 31 Normal, unspecified
500 Server internal error 41 Temporary failure
501 Not implemented 38 Network out of order
502 Bad gateway 38 Network out of order
503 Service unavailable 41 Temporary failure
504 Server timeout 102 Recovery on timer expiry
505* Version not supported 127 Interworking
600 Busy everywhere 17 User busy
603 Decline 21 Call rejected
604 Does not exist anywhere 1 Unallocated number
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