[Asterisk-Users] Line Noise UPDATE - If you've got line noise, read this

[Paul]

We have basically the same setup. My cards are on 5 and 7 as well and I've
disabled EVERYTHING is the bios that is not necessary; USB, serial,
parallel, ect. I would think that if it was an IRQ issue, the call wouldn't
tank when I connected it on the card with it's own IRQ. I just got in my new
Cisco 7940 a few minutes ago and when I get a powersupply for it, I'm going
to remove the Sipura-841 and try this one out and see if maybe that doesn't
fix the problem. I'm doubtful, but it seems that this POS sipura is the only
thing that is REALLY differing from out configurations. I didn't install X
when I setup this box, so I know it's not running, but it's good to know
that it can cause problems. Thanks for the info, every bit helps.


Paul

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Walt Reed
Sent: Friday, April 22, 2005 05:41
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Line Noise UPDATE - If you've got line
noise,read this

On Fri, Apr 22, 2005 at 02:40:10AM -0500, Paul said:
> 
> Ok, well I managed to fix the IRQ conflicts...well, sorta. I have two
X100P
> cards in the system. One now has it's own interrupt and the other is
sharing
> one with the soundcard. I tested outbound calls on both cards, still have
> the damn static. I am so sick of this. Is anyone else using X100P cards
and
> NOT having this problem?? 

Yes. I can make a call from a POTS phone hooked up to a Cisco ATA 186,
out one X100P to the PSTN, back in a second X100P, to a phone hooked up
to the second  port on the ATA186 with no noise, and no echo, and a
pretty small delay (which you can hear with one handset in each ear.)

I have disabled most of the on-board I/O such as parallel, serial, and
extra USB controllers, and the X100's are on int 5 and 7, not shared
with anything. Interrupts 10 and 11 have a bunch of stuff shared and are
used by USB controllers, ethernet ports (one on each IRQ) video card,
SCSI controller, and one "unknown device" (some special nVidia device.)

This machine is also used as a firewall / gateway / email server but
does NOT run X (which I hear can cause problems on some machines.) I've
been running this configuration for about 9 months with virtually no
problems in a SOHO environment including weekly 3-hour long conference
calls.

I realize this doesn't help you much, but it IS possible for the
configuration to work.

I have been thinking about getting a Sipura 3000 to add another FXS port
and remove one X100P which would also cut down on the number of
interrupts, leaving me one X100P for timming (so I don't need ztdummy.)

MAYBE this would help you.
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