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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'>Yes. Issue was not just with the Nortel as
originally thought but was also happening between IP phone to IP Phone. Turned
out to be a bug with the 4500 SUP 6 that all the devices were connected to was
dropping packets. <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'> kapil atrish
[mailto:nice_chatin@yahoo.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, June 23, 2010
4:40 AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'Richard Humphries'; Bill<br>
<b><span style='font-weight:bold'>Cc:</span></b> 'cisco-voip voyp list'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] Silence
with Nortel integration</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'>Curious if you've ruled-out VAD issue already?<br>
<br>
-----Original Message-----<br>
From: <a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><br>
[mailto:<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>]
On Behalf Of Bill<br>
Sent: Monday, May 17, 2010 8:36 AM<br>
To: 'Nick Matthews'<br>
Cc: 'cisco-voip voyp list'<br>
Subject: Re: [cisco-voip] Silence with Nortel integration<br>
<br>
Can anyone else jump on board with this? This is happening more and more but<br>
it is only this single site. I don't think it is layer 3 because they are<br>
all on the same subnet. What logs can I look at and turn on? <br>
<br>
<br>
<br>
-----Original Message-----<br>
From: <a href="http://us.mc550.mail.yahoo.com/mc/compose?to=matthn@gmail.com"
ymailto="mailto:matthn@gmail.com">matthn@gmail.com</a> [mailto:<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=matthn@gmail.com"
ymailto="mailto:matthn@gmail.com">matthn@gmail.com</a>] On Behalf Of Nick
Matthews<br>
Sent: Thursday, May 13, 2010 1:55 PM<br>
To: Bill<br>
Cc: Jason Aarons (US); cisco-voip voyp list<br>
Subject: Re: [cisco-voip] Silence with Nortel integration<br>
<br>
I would check your layer2/layer3. Specific suspicion on anything with<br>
redundancy. Something like a HSRP address flapping mac's, or equal<br>
cost paths that maybe going up or down, NAT, etc. My guess is that a<br>
MAC address is flapping for an address in your topology somewhere.<br>
DSPs normally don't stop and start working mid-call, they generally<br>
choose one or the other.<br>
<br>
-nick<br>
<br>
On Thu, May 13, 2010 at 2:16 PM, Bill <<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=bill@hitechconnection.net"
ymailto="mailto:bill@hitechconnection.net">bill@hitechconnection.net</a>>
wrote:<br>
> Ok so this issue has come up again. It now appears, much to my dismay
that<br>
> it is not only with the Nortel integration. I have had complaints on
other<br>
> calls including IP phone to IP phone. The IP Phones are on the same<br>
network,<br>
> same VLAN and even the same switch. It is a 4510 switch that is fully<br>
> loaded. I only have about 100 IP phones it now the rest are data<br>
> connections. It almost seems like an IP routing issue because the
call<br>
only<br>
> drops one way and it eventually comes back as long as no one hangs up.<br>
><br>
><br>
><br>
> ________________________________<br>
><br>
> From: <a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><br>
> [mailto:<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>]
On Behalf Of Bill<br>
> Sent: Wednesday, April 28, 2010 3:25 PM<br>
> To: 'Jason Aarons (US)'; 'cisco-voip voyp list'<br>
> Subject: Re: [cisco-voip] Silence with Nortel integration<br>
><br>
><br>
><br>
> All other H.323 calls to this gateway work fine. Only when going over
the<br>
> PRI that is connected to the Nortel. As much as I would like to point
the<br>
> finger there I need some very hard evidence to go that route.<br>
><br>
><br>
><br>
> ________________________________<br>
><br>
> From: Jason Aarons (US) [mailto:<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=jason.aarons@us.didata.com"
ymailto="mailto:jason.aarons@us.didata.com">jason.aarons@us.didata.com</a>]<br>
> Sent: Wednesday, April 28, 2010 3:21 PM<br>
> To: Bill; 'cisco-voip voyp list'<br>
> Subject: RE: [cisco-voip] Silence with Nortel integration<br>
><br>
><br>
><br>
> I'd get a sniffer up on 3845s Ethernet port and watch the H225/H245<br>
> packets. Got another H323 endpoint you could test with to narrow
down<br>
it's<br>
> a Nortel issue?<br>
><br>
> ________________________________<br>
><br>
> From: <a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><br>
> [<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=cisco-voip-bounces@puck.nether.net"
ymailto="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>]
On Behalf Of Bill<br>
> [<a
href="http://us.mc550.mail.yahoo.com/mc/compose?to=bill@hitechconnection.net"
ymailto="mailto:bill@hitechconnection.net">bill@hitechconnection.net</a>]<br>
> Sent: Wednesday, April 28, 2010 4:08 PM<br>
> To: 'cisco-voip voyp list'<br>
> Subject: [cisco-voip] Silence with Nortel integration<br>
><br>
> I have a 3845 configured as an h.323 gateway. I have four PRI's
connected<br>
to<br>
> this gateway from the PSTN. I also have a single PRI connected to this<br>
same<br>
> gateway used as a tie line to a Nortel system. I have had no complaints
on<br>
> calls going or coming from the PSTN. I have had several complaints on<br>
calls<br>
> to and from the Nortel box. The call could be setup fine and you are<br>
talking<br>
> but the call basically goes silent for about 10 - 15 seconds. The call<br>
does<br>
> not drop only silence. Also if you stay on the call the audio starts up<br>
> again. I don't think it is an IP routing issue because calls to the PSTN<br>
> work correctly and calls do work to the Nortel it just will stop for a
few<br>
> seconds. There are no slips and no errors on the line.<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
> ________________________________<br>
><br>
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