5Xx Response - Server Failure Responses; 6Xx Response - Global Responses - 3Com VCX v7111 User Manual

4xx Response
485 Ambiguous
486 Busy Here
487 Request
Canceled
488 Not Acceptable
5xx Response – Server Failure Responses
5xx SIP Responses
Table 112
5xx Response
500 Internal Server Error
501 Not Implemented
502 Bad gateway
503 Service Unavailable
504 Gateway Timeout
505 Version Not Supported
6xx Response – Global Responses
6xx SIP Responses
Table 113
6xx Response
600 Busy Everywhere
603 Decline
604 Does Not Exist Anywhere
606 Not Acceptable
404
Supported Comments
Yes The gateway does not generate this response. On reception of
this message, before a 200OK has been received, the gateway
responds with an ACK and disconnects the call.
Yes The SIP gateway generates this response if the called party is off
hook and the call cannot be presented as a call waiting call. On
receiving this response, the gateway notifies the User and
generates a busy tone.
Yes This response indicates that the initial request is terminated with
a BYE or CANCEL request.
Yes The gateway does not generate this response. On reception of
this message, before a 200OK has been received, the gateway
responds with an ACK and disconnects the call.
Comments
On reception of any of these Responses, the GW
releases the call, sending appropriate release cause
to PSTN side.
The GW generates 5xx response according to PSTN
release cause coming from PSTN.
Comments
On reception of any of these Responses, the GW
releases the call, sending appropriate release cause
to PSTN side.
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3Com VCX V7111 VoIP Gateway User Guide