Fixed Mapping of SIP Response to ISDN Release Reason
The following table shows the mapping of SIP response to ISDN release reason.
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 |
|
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 doesn't specify their cause code mapping.