402 3Com® VCX V7111 VoIP Gateway User Guide3xx Response – Redirection ResponsesTable 110 3xx SIP Responses3xx Response Supported Comments300 Multiple Choice Yes The gateway responds with an ACK and resends the request tofirst in the contact list, new address.301 MovedPermanentlyYes The gateway responds with an ACK and resends the request tonew address.302 MovedTemporarilyYes The SIP gateway generates this response when call forward isused, to redirect the call to another destination. If such responseis received, the calling gateway initiates an INVITE message tothe new destination.305 Use Proxy Yes The gateway responds with an ACK and resends the request tonew address.380 AlternateServiceYes "4xx Response – Client Failure ResponsesTable 111 4xx SIP Responses4xx Response Supported Comments400 Bad Request Yes The gateway does not generate this response. On reception ofthis message, before a 200 OK has been received, the gatewayresponds with an ACK and disconnects the call.401 Unauthorized Yes Authentication support for Basic and Digest. On receiving thismessage the GW issues a new request according to the schemereceived on this response402 PaymentRequiredYes The gateway does not generate this response. On reception ofthis message, before a 200 OK has been received, the gatewayresponds with an ACK and disconnects the call.403 Forbidden Yes The gateway does not generate this response. On reception ofthis message, before a 200 OK has been received, the gatewayresponds with an ACK and disconnects the call.404 Not Found Yes The SIP gateway generates this response if it is unable to locatethe callee. On receiving this response, the gateway notifies theUser with a Reorder Tone.405 Method NotAllowedYes The gateway does not generate this response. On reception ofthis message, before a 200OK has been received, the gatewayresponds with an ACK and disconnects the call.406 Not Acceptable Yes The gateway does not generate this response. On reception ofthis message, before a 200OK has been received, the gatewayresponds with an ACK and disconnects the call.