AudioCodes Mediant 1000 User Manual page 447

SIP User's Manual
Table H-1: Mapping of ISDN Release Reason to SIP Response (continues on pages 446 to
ISDN Release
Reason
50 Facility not subscribed
55
Incoming calls barred within CUG
57
Bearer capability not authorized
58
Bearer capability not presently available
63 Service/option not available
65
Bearer capability not implemented
66
Channel type not implemented
69
Requested facility not implemented
Only restricted digital information bearer
70
capability is available
79
Service or option not implemented
81
Invalid call reference value
82
Identified channel does not exist
Suspended call exists, but this call identity
83
does not
84 Call identity in use
85
No call suspended
Call having the requested call identity has
86
been cleared
87
User not member of CUG
88
Incompatible destination
91
Invalid transit network selection
95
Invalid message
96
Mandatory information element is missing
97
Message type non-existent or not implemented
Message not compatible with call state or
98
message type non-existent or not implemented
Information element non-existent or not
99
implemented
100
Invalid information elements contents
101
Message not compatible with call state
102
Recovery of timer expiry
111
Protocol error
127
Interworking unspecified
Version 5.0
447)
Description
447
H. Release Reason Mapping
SIP
Description
Response
503* Service unavailable
403
Forbidden
403
Forbidden
503
Service unavailable
503* Service unavailable
501
Not implemented
480*
Temporarily unavailable
503*
Service unavailable
503*
Service unavailable
501
Not implemented
502*
Bad gateway
502*
Bad gateway
503*
Service unavailable
503* Service unavailable
503*
Service unavailable
408*
Request timeout
503
Service unavailable
503
Service unavailable
502*
Bad gateway
503
Service unavailable
409*
Conflict
480*
Temporarily not available
409*
Conflict
480*
Not found
501*
Not implemented
503*
Service unavailable
408
Request timeout
500
Server internal error
500
Server internal error
December 2006