3Com VCX V7122 User Manual page 235

ISDN Release
Description
Reason
Mandatory information element is
96
missing
Message type non-existent or not
97
implemented
Message not compatible with call
98 state or message type non-
existent or not implemented
Information element non-existent
99
or not implemented
Invalid information elements
100
contents
Message not compatible with call
101
state
102 Recovery of timer expiry
111 Protocol error
127 Interworking unspecified
Table 49 Mapping of SIP Response to ISDN Release Reason
SIP
Description
Response
400* Bad request
401 Unauthorized
402 Payment required
403 Forbidden
404 Not found
405 Method not allowed
406 Not acceptable
Proxy authentication
407
required
408 Request timeout
409 Conflict
410 Gone
411 Length required
413 Request entity too long
3Com VCX V7122 SIP VoIP Gateway User Manual
SIP
Response
409*
480*
409*
480*
501*
503*
408
500
500
ISDN Release
Description
Reason
31 Normal, unspecified
21 Call rejected
21 Call rejected
21 Call rejected
1 Unallocated number
63 Service/option unavailable
79 Service/option not implemented
21 Call rejected
102 Recovery on timer expiry
41 Temporary failure
22 Number changed w/o diagnostic
127 Interworking
127 Interworking
Description
Conflict
Temporarily not available
Conflict
Not found
Not implemented
Service unavailable
Request timeout
Server internal error
Server internal error
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