CHAPTER26 Manipulation
Mediant 1000 Gateway & E-SBC | User's Manual
SIP
Response
Description
ISDN Release
Reason
Description
413 Request entity too long 127 Interworking
414 Request URI too long 127 Interworking
415 Unsupported media type 79 Service/option not
implemented
417 Unknown Resource
Priority
127 Interworking
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
489 Bad Event 31 Normal, unspecified
491 Request Pending 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
606* Not acceptable 38 Network out of order
* Messages and responses were created because the ‘ISUP to SIP Mapping’ draft does not specify
their cause code mapping.
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