[Asterisk-Dev] Second leg randomly dropping in Digium T1

Steven Critchfield critch at basesys.com
Wed Jan 7 10:55:42 MST 2004

On Wed, 2004-01-07 at 11:08, sudhir1 at adelphia.net wrote:
> I have a T1 card connected to PSTN trunk, E&M wink signalling.  I have
> noticed that second leg, both in normal call through asterisk as well
> as in conferecne calls, drops randomly within first 2 minutes. 
> Most commonly observed phenomenon is the following:
>     Party 1 calls and joins conference
>     Party 2 calls and joins conference
>     Party 2 gets dropped in first 2 minutes (Many times, not always)
>     Party 2 calls again and joins conference. Everything is fine. 
> Anyone any ideas what could be happening? I am inclined to rule out
> the PSTN line problem, as this behavior happened even when I changed
> the trunk. Our system is supposed to go live as soon as this problem
> is fixed.
> We are also in the process of building a system with Quad T1 card,
> which has been put on hold until this problem is resolved.

Do you have callprogress=yes or busydetect=yes uncommented in your
/etc/asterisk/zapata.conf file. If so comment them out.

Do you have the console messages from when the call is dropped?
Steven Critchfield  <critch at basesys.com>

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