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<title>Re: [cisco-voip] Parked and Hold Calls Dropped at 50 Seconds</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Lack of ‘no mgcp timer receive-rtcp’
was the problem. A combination of the IP connectivity (i.e. call on hold) and,
in this case, using multicast moh_live locally on the gateway so there was no unicast
stream arriving from an external source for the specific B channel.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jon<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Pritchard, Jon <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, June 28, 2006
5:12 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Kevin Thorngren<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">cisco-voip@puck.nether.net</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [cisco-voip] Parked
and Hold Calls Dropped at 50 Seconds</span></font><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>GW inbound and outbound. We've now
tried routing calls from another gateway over the WAN and those calls work
fine. We are looking for discrepencies in the mgcp config.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jon</span></font><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Kevin
Thorngren [mailto:kthorngr@cisco.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wed 6/28/2006 6:28 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Pritchard, Jon<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">cisco-voip@puck.nether.net</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] Parked
and Hold Calls Dropped at 50 Seconds</span></font><o:p></o:p></p>
</div>
<div>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>Does this
happen with IP Phone to IP Phone calls or with calls through<br>
a GW or both?<br>
<br>
If you are experiencing the problem with an MGCP GW try the command "no<br>
mgcp timer receive-rtcp". If this doesn't help please describe more<br>
about the call flow and the devices involved when the failures happen.<br>
<br>
Kevin<br>
On Jun 28, 2006, at 6:55 PM, Pritchard, Jon wrote:<br>
<br>
> Does anyone know what parked calls and calls on hold being dropped at<br>
> exactly 50 seconds is a telltale sign of?<br>
><br>
> In a cluster with 7 sites there is one site which is experience this<br>
> problem. All the other sites work fine. No service parameters
are<br>
> even close to 50 seconds (or 5000 milliseconds). Both internal and<br>
> external calls are affected. SQL replication appears to be
fine. <br>
> Rebooting CallManagers does not change behavior. Never seen anything<br>
> like this in 5 years. Any insight would be appreciated.<br>
><br>
> <st1:PersonName w:st="on">Jon Pritchard</st1:PersonName><br>
><br>
><br>
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> _______________________________________________<br>
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