Dialogic® Vision™ CX Video Gateway Administration Manual
SIP interface
SIP to ISUP cause values
The following table shows the default SIP response to ISUP cause code. This
mapping follows RFC 3398, ISUP to SIP Mapping.
SIP response
ISUP cause value
400 Bad request
41 Temporary failure
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 or 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
410 Gone
22 Number changed (without diagnostic)
413 Request Entity too long
127 Interworking
414 Request-URI too long
127 Interworking
415 Unsupported media type
79 Service/option not implemented
416 Unsupported URI Scheme
127 Interworking
420 Bad extension
127 Interworking
421 Extension Required
127 Interworking
423 Interval Too Brief
127 Interworking
480 Temporarily unavailable
18 No user responding
481 Call/Transaction Does not Exist
41 Temporary Failure
482 Loop Detected
25 Exchange - routing error
483 Too many hops
25 Exchange - routing error
484 Address incomplete
28 Invalid Number Format
485 Ambiguous
1 Unallocated number
486 Busy here
17 User busy
487 Request Terminated
--- (no mapping)
488 Not Acceptable here
--- by Warning header
500 Server internal error
41 Temporary failure
501 Not implemented
79 Not implemented, unspecified
502 Bad gateway
38 Network out of order
503 Service unavailable
41 Temporary failure
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