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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Do the two firewalls use the same ISP? If the two ISPs have
packet loss then nothing will help. Latency doesn’t effect TCP Skinny
keepalives so much as packet loss. I think you have to have 3 missed SCCP
keepalives for un-register. <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>CarlosOrtiz@bayviewfinancial.com<br>
<b>Sent:</b> Thursday, June 07, 2007 1:33 PM<br>
<b>To:</b> Linsemier, Matthew<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Calls intermittently complete<o:p></o:p></span></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Sorry it took
so long to send this reply. This LAN to LAN VPN tunnel is between two ASA
firewalls using AES 128. The firewall admin is checking to see if any QOS
can be done with the ASA at the edge to help. Does anyone have any
suggestions that may help with passing voice traffic over a VPN? One user
who is using IP Communicator sees hos phone unregister from time to time.
I can only guess this is being caused by latency. </span> <br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Carlos</span> <br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>"Linsemier,
Matthew" <MLinsemier@apcapital.com></span></b><span
style='font-size:7.5pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>06/04/2007
11:59 AM</span> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><CarlosOrtiz@bayviewfinancial.com></span>
<o:p></o:p></p>
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<p class=MsoNormal align=right style='text-align:right'><span
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<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>RE:
[cisco-voip] Calls intermittently complete</span><o:p></o:p></p>
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<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>What
equipment are you using for your LAN-to-LAN VPN and are you doing any QoS (LFI,
marking, etc.) at the edge?</span> <br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span>
<br>
<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>CarlosOrtiz@bayviewfinancial.com<b><br>
Sent:</b> Friday, June 01, 2007 12:03 PM<b><br>
To:</b> cisco-voip@puck.nether.net<b><br>
Subject:</b> [cisco-voip] Calls intermittently complete</span> <br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
We have an office in the UK that is connected via LAN to LAN VPN. They
have about 5 hard Cisco IP phones and a few users using IP communicator that
are using our Call Mge here in the US for site to site calls. They have
complained that calls do not complete sometimes. I did some testing with
a guy using IP comminicator and he would see my call coming in but was unable
to pick it up. I was watching with the Call Mgr admin and noticed that
his IP comminicator phone changed status from registered to not registered when
he attempted to answer the call. I simultaneously was pinging his phone
and never saw a lost packet. A couple of trys later and the call completed,
we had a conversation but he saw the message "CM, Features Failed". </span><br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Anyone have any insight here?</span> <br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Thanks,</span> <br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Carlos</span> <o:p></o:p></p>
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