<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br><div>Check your QoS Policy counters and make sure there are no dropped packets on the control class/traffic. I had one situation a long time ago, where they had same setup (a bunch of shared lines) and the bandwidth was fine but the queue-depth needed to be increased to 128 packets instead of the default (64 packets) on the particular policy. </div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From: Matt Slaga (US) <Matt.Slaga@us.didata.com><br>To: Aman Chugh <aman.chugh@gmail.com>; cisco-voip@puck.nether.net<br>Sent: Friday, April 20, 2007 7:48:48 AM<br>Subject: Re: [cisco-voip] Remote Site phones rebooting<br><br>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Check the saturation during an incoming call. Generally
speaking, you should use up about 1-2kbps per phone for control. Roughly
16kbps. Add in your ipsec header and vpn tunnel header information and you are
probably up to 48kbps or more. When you use a shared line for all devices, you
have SCCP traffic being pushed at the same time to all phones which may be
oversaturating your QoS policy for SCCP.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Do you get this same behavior if you set a single extension,
call and let CFNA initiate?</span></p>
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<p class="MsoNormal"><a rel="nofollow" name="_MailEndCompose"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></a></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Aman Chugh<br>
<b>Sent:</b> Friday, April 20, 2007 7:00 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] Remote Site phones rebooting</span></p>
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<p class="MsoNormal">All,</p>
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<p class="MsoNormal">I have a remote site configured with 8-10 ipphones, the
remote site uses a IPSEC vpn tunnel to register with centeral site.We have
a shared lines configured on all the remote site phones, the issue is whenever
we have calls ringing on these shared lines and no one answers these , the
phone reboots and reregisters, its happening frequently with all phones , I
have checked bandwitdh utilization on my link which is below 50% , I have
dedicated b/w in my qos configuration for call manager sccp traffic.
Has any one seen this or come across this before . CM is 4.1.3</p>
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<p class="MsoNormal">TIA</p>
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<p class="MsoNormal">Aman</p>
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