>From Section 13.3.1.4 "The INVITE is Accepted" "Once the response has been constructed, it is passed to the INVITE server transaction. Note, however, that the INVITE server transaction will be destroyed as soon as it receives this final response and passes it to the transport. Therefore, it is necessary to periodically pass the response directly to the transport until the ACK arrives. The 2xx response is passed to the transport with an interval that starts at T1 seconds and doubles for each retransmission until it reaches T2 seconds (T1 and T2 are defined in Section 17). Response retransmissions cease when an ACK request for the response is received. This is independent of whatever transport protocols are used to send the response."
Re: the last sentence. Why is this behavior independent of the transport protocol? It seems like re-submitting the 2xx to the transport is completely meaningless for TCP/TLS transports since the 2xx was guarenteed to arrive when it was initially passed to the transaction state machine. I'd expect this special case to only be necessary for UDP. Comments? Explanations? - Rhys __________________________________ Rhys Ulerich Telecommunications Solutions Software Development Email: [EMAIL PROTECTED] Office: 512-838-1428 IBM Software Group - Austin, TX _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
