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<p><tt>Thanks for your reply.</tt></p>
<p><tt>I'll start messing with the BIOS settings. <br>
</tt></p>
<p><tt>Its strange because the test box I'm using now is the same
hardware in which the card was running fine until I changed the
PBX.. but is a much newer debian, maybe that has someting to do
with it.</tt></p>
<p><tt>The only PCI card installed is this openvox digital card in
question.</tt></p>
<p><tt>I'll try to disable anything I don't use.</tt></p>
<p><tt>Thanks</tt><br>
</p>
<br>
<div class="moz-cite-prefix">El 06/08/16 a las 01:01, Latre
escribió:<br>
</div>
<blockquote
cite="mid:CAAjk4aPMtdB44jcXNu-RvO+Kn4ExZdgeXXhc1tXjZe-tV3cmwQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>Check your BIOS, maybe you have a share IRQs, disable
COMs and LPT1, and all unnecessary things.<br>
<br>
</div>
Revisa que en el bios no tengas habilitados seriales, lpt1,
audio o esas cosas que realmente no usas.<br>
<br>
</div>
Si las tarjetas son PCI puede provocar problemas.<br>
<br>
</div>
Intenta con solo una.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Aug 5, 2016 at 2:09 PM, <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:soporte@monssa.com.ar" target="_blank">soporte@monssa.com.ar</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello, I'm
new to this list and to some extent, to asterisk. If you
want to reply in spanish, do it; or for me to explain
someting in spanish, let me know.<br>
<br>
<br>
I'm having this problem:<br>
In my workplace, I was tasked with replacing the functioning
asterisk-freepbx PBX running old versions of debian and
asterisk, for a new asterisk PBX w/o freepbx.<br>
The PBX had a couple of OpenVox analog cards, which didn't
give me any major trouble, and a digital D210P card,
connected to a MFCR2 line from Claro(telmex). I'm in
Argentina. The digital lines were working.<br>
When building the new pbx, I took the digital card from the
old one and tested it in the new one, I got it working,
tried some calls and everithing was good, aparently.<br>
Then, when we moved the new pbx into production, people
started complaining the calls would cut with noise, or some
other people tought a fax machine or modem took over the
line, because the calls would connect, the two parties were
able to talk, but after some time (not a fixed amount of
time, most of the time about 1 or 2 min, sometimes more)
both parties stopped listening to eachother but a high
pitched noise, similar to acoustic feedback or the screech
of analog modems when they try to communicate, but the noise
was digital in nature, not analog, not feedback, it was
constant in volume and didn't alter when speaking into mic,
or over time.<br>
To test without having the other lines drop everytime we had
to reconfigure dahdi or restart the system, we moved the
card to a test box (the hardware from the old PBX being
replaced, but a new disk with the same system as the new
one, devuan jessie).<br>
We got the card and the mfcr2 line working, made test calls
and the random noise was still present.<br>
We checked dahdi_tool for IRQ misses, at the same time the
noise appeared, and nothing (0) misses.<br>
We disabled echo cancelling, with no success.<br>
We tried changing the balun, with no success.<br>
We tried using the same version of DAHDI as the old working
box (2.4.1) with no success.<br>
We used dahdi_monitor to check the levels, and when the
noise appears, the TX still shows the level of the call sent
by asterisk (for example, if we let the call play MOH
forever, we see the MOH levels on TX), but on RX we see the
level of the noise received (2032 is the value of the noise,
always constant, doens't matter of the other party is silent
or yells in the mic, when the noise starts it continues
always constant).<br>
We run the dahdi_test tool and we always get like 99,999%<br>
We tried to stress the CPU during a call to trigger the
noise, without success.<br>
We monitored the mfcr2 channel log during the call, but when
the noise appears, nothing comes up... like the call was
still normal, in a sense that's true because the call is
still stablished, but both parties hearing a noise (that I
dont know where it comes from..). When one of the parties
hungs up, then I get the event in the log file, like normal.<br>
We used the same configuration parameters as the old working
PBX, if you need them I'll paste the system.conf or
chan_dahdi.. but I don't think they're the problem, because
we can get all the channels up and running.<br>
<br>
Now in the test box im running:<br>
<br>
pruebatrama*CLI> mfcr2 show version<br>
OpenR2 version: 1.3.3, revision: (release)<br>
<br>
pruebatrama*CLI> dahdi show version<br>
DAHDI Version: 2.4.1.2 Echo Canceller:<br>
<br>
pruebatrama*CLI> core show version<br>
Asterisk 13.11.0-rc1 built by asterisk @ pruebatrama on a
i686 running Linux on 2016-08-04 17:43:00 UTC<br>
<br>
I'm running the old dahdi version because it's the same the
old working pbx had running. It's the dahdi distributed by
openvox and installed according to the card manual:<br>
<a moz-do-not-send="true"
href="http://www.openvox.cn/pub/manuals/Release/English/D210P%20DE210P_on_DAHDI_User_Manual.pdf"
rel="noreferrer" target="_blank">http://www.openvox.cn/pub/manu<wbr>als/Release/English/D210P%20DE<wbr>210P_on_DAHDI_User_Manual.pdf</a><br>
We initially tried the current 2.11 release but it didn't
work at all. The previous 2.10 did work (with the same noise
problem), but then I replaced it with the 2.4 to test.<br>
<br>
Let me know if there is some information I left out...<br>
<br>
Thanks in advance.<br>
<br>
Julian.<span class="HOEnZb"><font color="#888888"><br>
<br>
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<pre class="moz-signature" cols="72">--
Julián Metelski
Departamento IT
Monitoring Station S.A.
Calle 48 n° 812
La Plata (B1900AHN) - BA - ARG
Tel/Fax: (+54) 221 425 3355 </pre>
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