May be the Proxy is doing strict routing and UAC is not taking care of it. While sending ACK UAC should see, from route set, whether proxy does strict routing or lose routing. VIvek
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ranga Sent: Thursday, August 12, 2004 8:20 AM To: Brett Tate; 'Shekar, Nagesh Soma (Shekar)** CTR **'; [EMAIL PROTECTED] Subject: RE: [Sip-implementors] Question about ACK for 200 OK --- Brett Tate <[EMAIL PROTECTED]> wrote: > > I did try to include the Contact Header > > information, but the phone still sends > > an Ack to proxy, without sending it to > > the address indicated in the > > Contact Header of 200 OK. > > If the proxy added a Record-Route entry, > that would be where the phone would send > the ACK. The proxy should then route > the ACK to the next entry in the ACK's > Route header. > [Ranga] If proxy added a Record-Route entry, the route set anyway contains proxy address and also the contact header that was sent in 200 OK. This should route ACK request to the intended contact eventually. ACK first reaches proxy and then to the contact address. Please correct me if I am wrong. > One additional note, some devices always > or configurably send subsequent requests > within a dialog to their outbound proxies > without requiring the proxy to add a > record-route entry. If I recall correctly, > this is not per standard. However it is > potentially better than not sending the ACK > if device is configured to only communicate > directly with its outbound proxy. > > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or [EMAIL PROTECTED] immediately and destroy all copies of this message and any attachments. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
