El Miércoles, 3 de Febrero de 2010, Pranab Bohra escribió: > Hi Inaki, > > In addition to what Brett mentioned, the 1xx response includes "100 > Trying" as well. > 100 is a hop-by-hop response and not end-to-end. So, even if the > client transaction has entered "Proceeding" state after receiving 100 > from proxy, it doesn't mean that the UAS has received the request. > Hence the retransmission.
Thanks but this explanation doesn't make sense IMHO, let me explain: The same you say should then be applied for INVITE transactions as tue UAC cannot know if the UAS has received it. However UAC must stop retransmissions after receiving a 1XX response from the *proxy*. A retransmission just makes sense as hop by hop, so if the UAC has received a 1XX response coming from the proxy, why should the UAC retransmit the request? -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
