[cisco-voip] Dropped calls over ICT and H323 gateway

[Ryan Ratliff]

For tracking gateway calls you can use Paul Giralt's TranslatorX  
program.
http://www.employees.org/~pgiralt/TranslatorX/

-Ryan

On Aug 1, 2009, at 11:08 AM, Mike O wrote:

Wes,

Thanks for the reply I had to open a tac case and they found the  
issue with the PRI dropping the inbound call through the H323  
gateway. Do they have some type of parsing program that digs through  
the pages of logs?

Thanks,

Mike
----- Original Message -----
From: Wes Sisk
To: Mike O
Cc: cisco-voip at puck.nether.net
Sent: Thursday, July 30, 2009 10:54 AM
Subject: Re: [cisco-voip] Dropped calls over ICT and H323 gateway

CallManager traces.  There is checkbox in RTMT to collect them.

When you setup traces make sure you check the box on the callmanager  
trace configuration page for enable h225 and enable h245 debugs.

Just a few pointers that may come in handy:

1. finding 'dropped' calls in traces is very tedious.  there is  
monumental investment in knowledge to make sense of traces.  If you  
can identify dropped calls in CDR it provides much more rapid problem  
isolation:
http://supportwiki.cisco.com/ViewWiki/index.php/ 
Dropped_Call_Troubleshooting_in_CUCM

2. we see many dropped calls caused by TCP session aborts.  As h.323  
does not support call preservation by default a TCP session abort of  
either the H.225 session, H.245 session, or an unregistering phone  
device will cause the call to drop.  there were a few traces added to  
help identify some of these cases:

CSCsm26337    need clear messages for h225 tcp session failure
CSCsm26355    need clear messages for h245 tcp session failure

I just updated these so updated information will appear in Cisco Bug  
Toolkit in 24-48 hours.

Regards,
Wes


On Thursday, July 30, 2009 12:06:21 AM , Mike O <mikeeo at msn.com> wrote:
> Hey all Im getting dropped calls across an ICT and H323 gateway,  
> which log do I need to look at in RTMT? I have it all enabled on CM  
> just don;t know which log to download.
> _______________________________________________ cisco-voip mailing  
> list cisco-voip at puck.nether.net https://puck.nether.net/mailman/ 
> listinfo/cisco-voip

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