User`s manual

SIP User's Manual C. SIP Compliance Tables
Version 5.0 349 October 2006
C.5.4 4xx Response – Client Failure Responses
Table C-8: 4xx SIP Responses (continues on pages 349 to 350)
4xx Response Supported Comments
400 Bad Request Yes
The gateway does not generate this response. On reception of
this message, before a 200 OK has been received, the gateway
responds with an ACK and disconnects the call.
401 Unauthorized Yes
Authentication support for Basic and Digest. On receiving this
message the GW issues a new request according to the scheme
received on this response
402
Payment
Required
Yes
The gateway does not generate this response. On reception of
this message, before a 200 OK has been received, the gateway
responds with an ACK and disconnects the call.
403 Forbidden Yes
The gateway does not generate this response. On reception of
this message, before a 200 OK has been received, the gateway
responds with an ACK and disconnects the call.
404 Not Found Yes
The SIP
gateway generates this response if it is unable to
locate the callee. On receiving this response, the gateway
notifies the User with a Reorder Tone.
405
Method Not
Allowed
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.
406 Not Acceptable 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.
407
Proxy
Authentication
Required
Yes
Authentication support for Basic and Digest. On receiving this
message the GW issues a new request according to the scheme
received on this response.
408 Request Timeout Yes
The gateway generates this response if the no-answer timer
expires. On reception of this message, before a 200OK has
been received, the gateway responds with an ACK and
disconnects the call.
409 Conflict 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.
410 Gone 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.
411 Length Required 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.
413
Request Entity
Too Large
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.
414
Request-URL
Too Long
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.
415
Unsupported
Media
Yes
If the
gateway receives a 415 Unsupported Media response, it
notifies the User with a Reorder Tone.
The gateway generates this response in case of SDP mismatch.