SIP User's Manual
396
Document #: LTRT-68808
Mediant
2000
ISDN
Release
Reason
Description
SIP
Response
Description
82
Identified channel does not exist
502*
Bad gateway
83
Suspended call exists, but this call
identity does not
503* Service
unavailable
84
Call identity in use
503*
Service unavailable
85
No call suspended
503*
Service unavailable
86
Call having the requested call identity
has been cleared
408* Request
timeout
87
User not member of CUG
503
Service unavailable
88 Incompatible
destination
503
Service
unavailable
91
Invalid transit network selection
502*
Bad gateway
95
Invalid message
503
Service unavailable
96
Mandatory information element is
missing
409* Conflict
97
Message type non-existent or not
implemented
480*
Temporarily not available
98
Message not compatible with call state
or message type non-existent or not
implemented
409* Conflict
99
Information element non-existent or not
implemented
480* Not
found
100
Invalid information elements contents
501*
Not implemented
101
Message not compatible with call state
503*
Service unavailable
102
Recovery of timer expiry
408
Request timeout
111
Protocol error
500
Server internal error
127
Interworking unspecified
500
Server internal error
*
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
Description
ISDN Release
Reason
Description
400
*
Bad request
31
Normal, unspecified
401 Unauthorized
21 Call
rejected
402
Payment required
21
Call rejected
Содержание Mediant 2000
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