Hi! When is ACK hop-by-hop or forwarded? In draft "draft-ietf-sipping-basic-call-flows-01", example 3.2 (an successful call) the ACK on the 200 OK is forwarded by the proxies. In example 3.8 and 3.9 (unsuccessful call, no answer and busy) the ACK is forwarded hop-by-hop. Is there some simple rule for how to forward ACK?
If the ACK request is hop-by-hop, how do a statless proxy know when to forward it or not? Looking at the previous mentioned examples, I can see nothing in the ACK sent from A to Proxy 1 that says to the proxy "don't forward this". How is this solved? Regards, Andreas ____________________________________ Andreas Bystr�m Computer Engineer e-horizon Streaming Technologies Stadshusplatsen 2, 4th floor Box 172 SE 14922 Nyn�shamn mail : [EMAIL PROTECTED] web : www.e-horizon.se phone : +46 8 524 201 80 mobile: +46 708 85 23 35 ____________________________________ _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
