Fixed Mapping Of Sip Response To Isdn Release Reason; Table 9-2: Mapping Of Sip Response To Isdn Release Reason - AudioCodes Mediant 2000 User Manual

ISDN
Release
Reason
82 Identified channel does not exist
Suspended call exists, but this call
83
identity does not
84 Call identity in use
85 No call suspended
Call having the requested call identity
86
has been cleared
87 User not member of CUG
88 Incompatible destination
91 Invalid transit network selection
95 Invalid message
Mandatory information element is
96
missing
Message type non-existent or not
97
implemented
Message not compatible with call state
98 or 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
* Messages and responses were created because the 'ISUP to SIP Mapping' draft doesn't
specify their cause code mapping.
9.2.3

Fixed Mapping of SIP Response to ISDN Release Reason

The following table describes the mapping of SIP response to ISDN release reason.

Table 9-2: Mapping of SIP Response to ISDN Release Reason

SIP
Response
400 Bad request
*
401 Unauthorized
402 Payment required
SIP User's Manual
Description
Description
SIP
Response
502*
503*
503*
503*
408*
503
503
502*
503
409*
480*
409*
480*
501*
503*
408
500
500
ISDN Release
Reason
31 Normal, unspecified
21 Call rejected
21 Call rejected
396
Mediant 2000
Description
Bad gateway
Service unavailable
Service unavailable
Service unavailable
Request timeout
Service unavailable
Service unavailable
Bad gateway
Service unavailable
Conflict
Temporarily not available
Conflict
Not found
Not implemented
Service unavailable
Request timeout
Server internal error
Server internal error
Description
Document #: LTRT-68808