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<p class=MsoNormal><span style='color:#1F497D'>Sounds like a registration
timeout error. Try reducing the sip register timer down from 3600.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>You could debug this by using
IOS Service Diagnostics and setting triggers for SIP registration timeout or
failure, to send you an email.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Daryl Maunder<br>
<b>Sent:</b> Tuesday, October 14, 2008 7:51 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] Tracing SIP vs PSTN outbound<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-AU>I have a customer with a UC520. They have a
SIP trunk setup which is used for inbound and outbound calling, plus two PSTN
lines on the FXO ports, that used for fallback and because they aren’t ready to
get rid of them yet.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU>A few times in the past few weeks, they
have found they can only have a total of two inbound/outbound calls, which
seems like the SIP trunk isn’t working, but when I dial in later on, all seems
to be ok. How should I debug this?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Regards</span><span
lang=EN-AU style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-AU
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Daryl </span></b><span
lang=EN-AU><o:p></o:p></span></p>
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