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ISDN Release
Reason
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 been
86
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
Mediant 2000 SIP User's Manual
Description
228
SIP
Description
Response
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
Document #: LTRT-72504
Mediant 2000 SIP
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