<div>Robin,</div>
<div> </div>
<div>We also had a similar setup where phones register using a vpn link and we were also seeing unregistrations.This can happen to due to several reasons. Ipphone sends skinny keepalive messages every 30 seconds and waits for ack as these are TCP packets and if it misses three acks it unregisters,I got around this Issue by using qos and giving guaranteed bandwidth to signalling traffic using port TCP 2000-2002.
<br> </div>
<div>Aman<br> </div>
<div><span class="gmail_quote">On 11/15/06, <b class="gmail_sendername">Robin Inderberg</b> <<a href="mailto:robin.inderberg@candidator.se">robin.inderberg@candidator.se</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
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<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi,</span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">We have a site that connects to the CCM through the WAN via a VPN tunnel.</span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The 7940 and 7960 do unregister themselves a couple of times/day. </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The customer says that he need to unplug the powerchord and plug it in again, then it works.</span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">On the display it only says registering with cisco callmanager. </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The phone load I use is P00307020400 and we have CCM 4.2(3).</span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Anyone else who have seen this one? </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">They also got a bunch of 7912 and a few 7920, they don't have the same problem.</span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thank you in advance, </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Courier New" size="2"><span lang="SV" style="FONT-SIZE: 10pt">Med vänliga hälsningar</span></font></p>
<p><font face="Courier New" size="2"><span lang="SV" style="FONT-SIZE: 10pt"> </span></font></p>
<p><font face="Courier New" size="2"><span style="FONT-SIZE: 10pt"><span lang="SV">Robin Inderberg</span></span></font><font face="Courier New" size="2"><span lang="SV" style="FONT-SIZE: 10pt"></span></font></p>
<p><font face="Courier New" size="2"><span style="FONT-SIZE: 10pt"><a title="mailto:robin.kindberg@candidator.se" onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:robin.inderberg@candidator.se" target="_blank">
<span lang="SV">robin.inderberg@candidator.se</span></a></span></font><font face="Courier New" size="2"><span lang="SV" style="FONT-SIZE: 10pt"></span></font></p>
<p><font face="Courier New" color="silver" size="2"><span lang="SV" style="FONT-SIZE: 10pt; COLOR: silver">_____________________________________________</span></font></p>
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<p><font face="Courier New" color="silver" size="2"><span lang="SV" style="FONT-SIZE: 10pt; COLOR: silver">Direkt: 0322-67 10 19 Candidator AB</span></font></p>
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