[Asterisk-Users] Static on outgoing calls using either X100P or TDM400P

[Ben Merrills]

Have you had a play with irqmasking on your drivers? Are they IDE
drivers? If so, try: hdparm -u1 /dev/<drive>

Do this for each of your IDE drives, this seems to have fixed a number
of peoples issues in the past.

Also, when you say nothing is sharing an IRQ, is this according to
proc/interrupts? Don't forget that unless the kernel has a driver for
the device, it wont show up in that listing. Double check using lspci -v

Apart from that, get a line test done. Your telcom provider should do
one at your request.

In the end I changed the box they were running in, and all was resolved.
Extreme I know, but it worked :)

Cheers,

Ben

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Lenny Self
Sent: 13 August 2004 21:33
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Static on outgoing calls using either X100P or
TDM400P

Hello.  I've seen several posts talking about line quality using Digium 
cards that are sharing IRQs or on machines where X is running but after 
trying all of those fixes I am still having a problem with line static 
on outoing calls.  BTW, calls that are from one extension to another 
extension have no static, however, they have occasional clicks and 
pops.  At any rate, I was wondering if someone might be able to help 
figure out how to fix this problem.

Here is some information about my setup:

Celeron 2.4Ghz w/ 256MB of Ram running Mandrake 9.2 with the 
2.4.22-36mdk kernel installed with X not installed.  This happens to be 
running on an Intel MB Model (D865GBF)

1 - X100P
1 - TDM400P configured with 4 FXO ports

each of these cards have their own IRQ.

I am running RC2 *, zaptel drivers, etc.

I've fiddled wit hteh tx/rx gain and have succeeded only in decreasing 
the volume of the static.

Any suggestions?

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