When in either the "Calling" or "Proceeding" states, reception of a
response with status code from 300-699 MUST cause the client
transaction to transition to "Completed". The client transaction
MUST pass the received response up to the TU, and the client
transaction MUST generate an ACK request, even if the transport is
reliable (guidelines for constructing the ACK from the response are
given in Section 17.1.1.3) and then pass the ACK to the transport
layer for transmission. The ACK MUST be sent to the same address,
port, and transport to which the original request was sent.
IMPORTANT: HUGHES SOFTWARE SYSTEMS LTD. (HSS) IS NOW FLEXTRONICS SOFTWARE
SYSTEMS LTD. (FSS)
OmPrakashTripathi
70630
<[EMAIL PROTECTED] To
i.com> [email protected],
Sent by: [email protected]
sip-implementors- cc
[EMAIL PROTECTED]
ia.edu Subject
[Sip-implementors] Doubt regarding
the Cancelling of a Request...
04/22/05 11:15 AM
Hi,
When any Request has been Terminated by sending CANCEL Msg a 487 Msg is
generated in response to that. My doubt is, whether an ACK should be send
after the 487 is received or not.
Thanks,
Om..
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