[cisco-voip] Call Drop

[Biffle, Gerrad]

If the problem is happening that often (not knowing you total call
volume for a day) - I would think it would be fairly easy to span the
port on one of your "frequent droppers" and get a packet capture as well
as digging into some "detailed" CallManager traces.  These combined
should give you an idea on which end is initiating the disconnect.  If
you are unfamiliar with either of these - the suggestion to contact TAC
is your best bet - they'll get to the bottom of it with you.

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Sovannary
Sent: Tuesday, April 28, 2009 10:04 PM
To: 'Larry Hadrava'
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Call Drop

 

Hello,

 

The calls are from PSTN to internal. We are operating a Call Center. We
only got problem for the incoming calls. 

 

There is no data log for CDR. 

 

What do you mean PRI/E1 look? Down? 

I think it's not coz we still received calls but just the number of
dropped call compare to last time are big different number (now the
number of dropped call are up to about 300 calls per day).

 

The calls drop when connected. 

 

Thanks for your help.

 

 

________________________________

From: Larry Hadrava [mailto:lhadrava at ipexpert.com] 
Sent: Tuesday, April 28, 2009 6:20 PM
To: Huy Hamsovannary
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Call Drop

 

Can you give us more to go on that - the calls were being dropped?

Were they internal to internal? PSTN to internal? Internal to PSTN?

What did the CDR's show? 

What do your PRI's / E!'s look like? 

Are the calls being dropped coming / going out a certain GW?

Did the calls drop when transferred, when connected, in the middle of
the call, etc?


Larry Hadrava
CCIE #12203 CCNP CCNA
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com

On Tue, Apr 28, 2009 at 12:44 AM, Huy Hamsovannary
<hamsovannary at gmail.com> wrote:

Hi all,

 

Recently we're experiencing lots of call drop. We are using CallManager
4.2. 

 

Does anyone know what could be the reason for this issue? 

 

Thanks,

 

 


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