<div>Hi Bogdan,</div>
<div> </div>
<div>Yes, The caller device resend the INVITE with credentials. It caused the callee rining.</div>
<div> </div>
<div>Regards,</div>
<div>Steven<br><br></div>
<div class="gmail_quote">On Mon, Nov 30, 2009 at 6:15 PM, Bogdan-Andrei Iancu <span dir="ltr"><<a href="mailto:bogdan@voice-system.ro">bogdan@voice-system.ro</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Hi Steven,<br><br>Is the caller device doing retransmission for the INVITE (which has the<br>credentials) ?<br>
<br>Regards,<br>Bogdan<br>
<div>
<div></div>
<div class="h5"><br>doolin wu wrote:<br>><br>><br>> I'm facing a CANCEL problem now. The problem can be described as<br>> "UAC canceled the INVITE but UAS still state ringing status"<br>
> The UAS is a desk phone connected to VoIP network by a VoIP<br>> gatway, the SIP server is OpenSIPS 1.5.<br>><br>> Based on the SIP singaling at UAC side, there scenarios to cause<br>> the problem:<br>
> *1. Cancel before 407 Proxy Authentication Required*<br>> INVITE -><br>> 100 -><br>> CANCEL-><br>> 200 for CANCEL ( from proxy server)<-<br>> 407 for INVITE <-<br>
> ACK -><br>> INVITE (with authorization) -><br>> 180 <-<br>><br>> In this case, the INVITE with authorization caused the UAS rining.<br>> My question is shall UAC send INVITE after receive 407 if the<br>
> first INVITE is canceling?<br>> ...<br>> *2. Cancel after 407 Proxy Authentication Required.*<br>> INVITE -><br>> 100 -><br>> 407 <-<br>> CANCEL-><br>> 400 for CANCEL <-<br>
> ACK -><br>> INVITE (with authorization) -><br>> 180 <-<br>> The reason caused UAS rining is same with case 1.<br>> How to handle this scenario?<br>> The cancel was treated as bad request due to the INVITE has<br>
> generate final response 407.<br>> Shall UAC send CANCEL again when receive 180?<br>> --<br>> Best Regards,<br>> Steven Wu<br>><br>><br>><br>><br>> --<br>> Steven Wu<br>
> Teleca Mobile Solution<br></div></div>> ------------------------------------------------------------------------<br>><br>> _______________________________________________<br>> Devel mailing list<br>> <a href="mailto:Devel@lists.opensips.org">Devel@lists.opensips.org</a><br>
> <a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/devel" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/devel</a><br>><br><br><br>--<br>Bogdan-Andrei Iancu<br><a href="http://www.voice-system.ro/" target="_blank">www.voice-system.ro</a><br>
<br><br>_______________________________________________<br>Devel mailing list<br><a href="mailto:Devel@lists.opensips.org">Devel@lists.opensips.org</a><br><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/devel" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/devel</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Steven Wu<br>Teleca Mobile Solution<br>