"Why Siphon doesn't allow to receive a call when it doesn't run Apple doesn't accept (for the moment) an application runs in the background. So, when Siphon doesn't run, the SIP server of your provider doesn't know your iPhone." --0015174c3c60a73ef5046656ca27 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable <br><div class=3D"gmail_quote">2009/3/30 Lincoln King-Cliby <span dir=3D"ltr"><<a href=3D"mailto:lincoln at controlworks.com">lincoln at controlworks.com</a>></span><br><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div link=3D"blue" vlink=3D"purple" lang=3D"EN-US"> <div> <p><font color=3D"navy" face=3D"Arial" size=3D"2"><span style=3D"font-size: 10pt; font-family: Arial; color: navy;">There are a couple SIP clients in the App store; the first one I tried (WeePhone) supports STUN but breaks horribly when you try to connect to an Asterisk server across a VPN connection, which is critical in our case since we aren=92t exposing our Asterisk deployments to the public Internet (same reason why Fring won=92t work for us). </span></font></p> <p><font color=3D"navy" face=3D"Arial" size=3D"2"><span style=3D"font-size: 10pt; font-family: Arial; color: navy;">=A0</span></font></p> <p><font color=3D"navy" face=3D"Arial" size=3D"2"><span style=3D"font-size: 10pt; font-family: Arial; color: navy;">On the same LAN as the Asterisk server with no intervening VPN it has a few quirks but seems to work decently enough.</span></font></p></div></div></blockquote><div>How are incoming calls working ?<br>From here (<a href=3D"http://code.google.com/p/siphon/wiki/FAQ_en">http://code.google.com/p/siphon/wiki/FAQ_en</a>), I can read :<br> <h3><a name=3D"Why_Siphon_doesn't_allow_to_receive_a_call_when_it_doesn">"Why Siphon doesn't allow to receive a call when it doesn't run</a></h3><p><a name=3D"Why_Siphon_doesn't_allow_to_receive_a_call_when_it_doesn">Apple doesn't accept (for the moment) an application runs in the background. So, when Siphon doesn't run, the SIP server of your provider doesn't know your iPhone." </a></p><br> </div></div> --0015174c3c60a73ef5046656ca27--