[Asterisk-Users] Problem with call drops

[Waldo Rubinstein]

That was on the machine with the TE410P.

- Waldo

On Nov 15, 2005, at 4:00 PM, asterisk wrote:

> 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 --
>>>
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>>
>>
>
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