The problem occurred again and I think it may be caused by the
agent/queue system. The commands "show agents" and "show queues" simply
refuse to work when the problem occurs. The channel that appears to be
out of sync is one that has been to the queue as well.
Anyone notice any problems similar with Asterisk 1.0.8? Also the
changelog for asterisk 1.0.9 is one line about callerid...could that be
related?
--johann
Johann wrote:
We are currently using Asterisk 1.0.8 and noticing a rather odd
problem that occurs roughly during the middle of the day sometimes.
It seems that Asterisk and Bellsouth are getting out of sync somehow
on the the status of the PRI channels. I get warnings messages like:
Jul 18 10:50:24 WARNING[744]: chan_zap.c:7585 pri_dchannel: Ring
requested on channel 0/1 already in use on span 1. Hanging up owner.
The other channels continue to work flawlessly. It is always
different which channel the problem is with, but it is a low numbered
channel that is active from an incoming call. Outbound calls use a
high numbered channel and can continue while a low numbered channel is
having a problem. The time is usually around the middle of the day
when there are a lot of inbound calls as well. It has happened about
4 times since upgrading to Asterisk 1.0.8(we use to be on a CVS build
from Feb).
I've talked with Bellsouth and from their end everything is normal.
They see the channel that the call is being sent to as being open. I
have to kill -9 the asterisk proceses and restart it to get the pbx
back up and fully operational.
I have used ZapScan() and checked the audio on the channels that
Asterisk still thinks are in use and there is nothing. I can't soft
hangup the chanenls either. The commands "show queues" and "show
agents" return nothing at all. Agents are not able to login or logout
of the queue either. The channels that have been in the inconsistent
state have always been calls that were sent to the queue as well.
Any ideas on why this may be occuring and a possible fix?
--johann
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