Technical data

Cause Code Mapping
Dialogic
®
Diva
®
SIPcontrol
TM
Software 1.8 Reference Guide page 59
421 Extension required 79 Service/option not implemented
423 Interval too brief 63 Service or option unavailable
480 Temporarily unavailable 19 No answer from user
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 (address
incomplete)
485 Ambiguous 1 Unallocated number
486 Busy here 17 User busy
488 Not acceptable here 65 Bearer capability not implemented
500 Server internal error 41 Temporary failure
501 Not implemented 79 Service/option not implemented
502 Bad gateway 38 Network out of order
503 Service unavailable 63 Service or option unavailable
504 Server time-out 41 Temporary failure
505 Version not supported 79 Service/option not implemented
513 Message too large 63 Service or option unavailable
600 Busy everywhere 17 User busy
603 Decline 21 Call rejected
604 Does not exist anywhere 1 Unallocated number
606 Not acceptable 65 Bearer capability not implemented
Any code other than listed above: 31 Normal, unspecified
SIP response
code from the
SIP peer
Description ISDN cause code Description