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"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."

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<br><div class=3D"gmail_quote">2009/3/30 Lincoln King-Cliby <span dir=3D"lt=
r">&lt;<a href=3D"mailto:lincoln at controlworks.com">lincoln at controlworks.com=
</a>&gt;</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 w=
hen
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></f=
ont></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 se=
rver
with no intervening VPN it has a few quirks but seems to work decently enou=
gh.</span></font></p></div></div></blockquote><div>How are incoming calls w=
orking ?<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&#39;t_allow_to_receive_a_call_when_it_doesn=
">&quot;Why Siphon doesn&#39;t allow to receive a call when it doesn&#39;t =
run</a></h3><p><a name=3D"Why_Siphon_doesn&#39;t_allow_to_receive_a_call_wh=
en_it_doesn">Apple
doesn&#39;t accept (for the moment) an application runs in the background.
So, when Siphon doesn&#39;t run, the SIP server of your provider doesn&#39;=
t
know your iPhone.&quot; </a></p><br> </div></div>

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