asterisk users - Oct 2004 - Popping and Clicking on Local WAN with X-Lite

I'm running a base demo install of Asterisk with ztdummy loaded on a 
2Ghz Celeron with 256MB Ram - It's running on Fedora Core 2 in Text Only 
mode.  I can connect with no issues but I'm getting intermitent popping 
and clicking noises in the demo playback - I've tried a variety of 
different codecs all with the same effect.  It's the local wan so I 
can't see how QOS would be of any help.  Can you reccomend any fixes for 
this as I'm demoing this to the company tommorow and quality of audio is 
going to be a big concern even at this early stage.

Thanks,

Jeremy Roe
Division Technical Manager
ABC Computers

Take a look and make sure that none of your digium cards are sharing
irqs with *anything* else. I had the exact problem you describe, and I
had to shift things around until it they had their own. As you can see
in the below example, the only thing using irq 11 is the wctdm driver
(which drives the four port FXO card I have in there from Digium). 
You can also see irq 9 being shared by a USB controller, which doesn't
seem to matter in my case. View the same output on your system using
cat /proc/interrupts

To move it from a different irq, some nice motherboards have an option
to assign the irq's in the BIOS. My board was not one of those. I had
to open it up and shift things around the pci slots until I got the
right combination. It takes some trial and error, but it is well worth
the results.




cat /proc/interrupts:

          CPU0       
  0:   12453403          XT-PIC  timer
  1:          3          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  8:          1          XT-PIC  rtc
  9:      71171          XT-PIC  eth0, uhci
 11:  124458874          XT-PIC  wctdm
 14:      93918          XT-PIC  ide0
 15:         60          XT-PIC  ide1
NMI:          0 
ERR:          0


On Tue, 05 Oct 2004 14:01:14 -0500, Jeremy Roe
<jroe@dynamictechsolutions.net> wrote:
> I'm running a base demo install of Asterisk with ztdummy loaded on a
> 2Ghz Celeron with 256MB Ram - It's running on Fedora Core 2 in Text
Only
> mode.  I can connect with no issues but I'm getting intermitent popping
> and clicking noises in the demo playback - I've tried a variety of
> different codecs all with the same effect.  It's the local wan so I
> can't see how QOS would be of any help.  Can you reccomend any fixes
for
> this as I'm demoing this to the company tommorow and quality of audio
is
> going to be a big concern even at this early stage.
> 
> Thanks,
> 
> Jeremy Roe
> Division Technical Manager
> ABC Computers
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