[cisco-voip] Random call disconnects

[Huffman, Tim]

I haven't yet been able to re-create the issue, but if the problem is on my side, what would be some things I need to check on?

Thanks,

Tim Huffman

From: cmstaffin at gmail.com [mailto:cmstaffin at gmail.com] On Behalf Of Craig Staffin
Sent: Saturday, December 19, 2009 9:41 AM
To: Huffman, Tim
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Random call disconnects

Tim,

ON a call that is having the issue run a Debug ISDN q931.  Watch and see if the Disconnect is a TX or RX.  If it is TX then it is in fact your issue.  If it is a RX then it is a carrier issue.


Craig Staffin


On Sat, Dec 19, 2009 at 8:11 AM, Huffman, Tim <thuffman at rosettastone.com<mailto:thuffman at rosettastone.com>> wrote:
We have a single CUCM with one 2821 VGW and one E1 PRI in our UK office.  We're seeing issues with random call disconnects.  About 25% of the time, a call will drop within a minute.  The call connects, you can talk to the person on the other end, you then hear dead silence on our end and the person on the other end gets a fast busy.  After checking all of the config settings we believe it's a carrier issue, but the carrier claims the disconnects are coming from our system.  Is there anything I can do to confirm where the problem is?

Thanks,

Tim Huffman


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