[Asterisk-Users] Problem with call drops

[asterisk]

Run zttest on the machine with the TE410P.


> I'm attaching the output of zttest (zttest.txt) and concurrently
> running vmstat 1 (vmstat.txt). Please see if you can make something
> out of it because I don't really know what the numbers mean.
>
> Thanks,
> Waldo
>


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>
> On Nov 15, 2005, at 1:32 PM, Mojo with Horan & Company, LLC wrote:
>
> > Have you watched the output of zttest to make sure your interrupts
> > are firing adequately?
> >
> > Waldo Rubinstein wrote:
> >> Hello guys,
> >> I've been having a a recurring problem with people complaining
> >> about  calls being dropped.
> >> I have 3 asterisk servers:
> >> Gateway: running Asterisk 1.2rc2 with TE410P connected to 4 T1s
> >> of  the PSTN
> >> Server 1: running Asterisk 1.2rc2 with ztdummy using Gateway to
> >> access the PSTN (in/out)
> >> Server 2: running Asterisk 1.0.9 with ztdummy using Gateway to
> >> access  the PSTN (in/out)
> >> I have agents connected to both Server 1 and Server 2.
> >> The problem is that every once in a while, agents complain that
> >> their  calls dropped. Sometimes it's some agents that complaint,
> >> some other  times, ALL agents complaint at the same time.
> >> When these complaints occur, the only thing I so is:
> >> 1) Issue a show channels on all three servers to see if there are
> >> any  ongoing calls. I assume that if there are active calls, that
> >> not all  calls dropped
> >> 2) Issue dmesg in Gateway to see if any of the T1s presented an
> >> alarm  that could have dropped the calls
> >> In either case, I don't see any errors in dmesg indicating there
> >> were  problems with the T1s and I always see active calls in all
> >> the servers.
> >> What can I do to further troubleshoot this? If I look at the CDR,
> >> how  can I tell that a call was "abnormally" terminated? Are there
> >> any  tools out there that would allow me to check the health
> >> status of the  working system and not just the "availability" of
> >> the machines? I was  looking at nagios but I don't know if it will
> >> do what I need to do.
> >> The other thing I could think of is that there may be a network
> >> problem in the building. The way everything is connected is all
> >> agents are connected to a series of unmanaged switches in the
> >> "call  center floor", which are daisy chained together and then
> >> one is  connected to the main switch with a single cable drop. The
> >> main  switch is where the Asterisk servers are connected. I
> >> figured that if  one of the switches in the call center area
> >> fails, it could drop all  calls or if there is a problem with the
> >> cable drop from the main  switch, that could also affect all agents.
> >> Any advise will be greatly appreciated.
> >> Thanks,
> >> Waldo
> >> _______________________________________________
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> >
> > -- 
> > Mojo <mojo at horanappraisals.com>
> > Office Manger, Horan & Company, LLC
> > (907) 747-6666 x112
> > _______________________________________________
> > --Bandwidth and Colocation sponsored by Easynews.com --
> >
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
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> >   http://lists.digium.com/mailman/listinfo/asterisk-users
>
>


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