[Asterisk-Users] Distortion/crackling/skipping problems on outgoing calls -- please help!!!

[Rich Adamson]

> >>>
> >>>
> >> Wow, very interesting. Thank you so much! BTW, regarding YMMV, did 
> >> you have a separate, dedicated sound card? I don't -- it's integrated 
> >> into my motherboard. Would this still apply? Of course, there are 
> >> still ports in the back for in, out, and a mic, so it may still 
> >> apply, but my Ethernet card is way down on the second-to-last PCI 
> >> port, so would this still apply?
> >>
> >> Again, thanks very much for your support, and if you think this may 
> >> still apply to my setup, I will definitely try what you recommended.
> >
> >
> > Check what you get when you "cat /proc/interrupts"
> >
> > If you can get hold of a hardphone to play with, and it works just 
> > fine when it's on the same switch as the computer, then I would be 
> > tempted even further to suspect an interrupt-related problem as your 
> > culprit.
> >
> > B.
> >
> What should I be looking for in /proc/interrupts? If the first field in 
> each row is the IRQ, I don't see any of the same numbers listed, so 
> would that mean there are no conflicts?
> 
> Earlier, I ordered a GXP-2000, which will hopefully ship from Voxilla on 
> Tuesday, so that will be a very good indicator of just what my problem 
> is, I think.
> 
> However, in the meantime, I *really* would like to get this figured out! 
> Leaving problems unfixed, to me, is simply a non-option.

You should see something like:
[root at phoenix asterisk]# cat /proc/interrupts
           CPU0       
  0:  201066464          XT-PIC  timer
  1:       5421          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  8:          1          XT-PIC  rtc
  9:          0          XT-PIC  acpi
 10:    1646446          XT-PIC  eth0
 11:  200987949          XT-PIC  libata, wctdm
 12:     148358          XT-PIC  i8042
 14:     208303          XT-PIC  ide0
 15:    1808413          XT-PIC  ide1
NMI:          0 
ERR:          0
[root at phoenix asterisk]# 

In the above, the ethernet card is on interrupt 10 and my digium TDM
card is on 11.

Look for your ethernet in the list and see if anything is listed
next to it. (In the above libata and wctdm are sharing an interrupt.
You really don't want anything sharing an interupt with your 
ethernet card.)