[Asterisk-Users] Squeaking / chirping on ZAP Digium TDM400P

Kellner, Peter Peter at PeterKellner.net
Fri Apr 1 15:10:18 MST 2005


Here is my printout below.  It looks to me like it is sharing with USB.
I don't seem to have a way in my bios to turn off USB though and nothing
is plugged into it.  Could that be a problem?  Also, are the other
things mentioned all part of Asterisk?

Thanks,  -Peter

          CPU0
  0:    8721991          XT-PIC  timer
  1:          4          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  ehci-hcd
  8:          1          XT-PIC  rtc
 10:     192343          XT-PIC  usb-uhci, usb-uhci, eth0
 11:  167690609          XT-PIC  libata, usb-uhci, wctdm, ztdummy,
usb-uhci
 12:        422          XT-PIC  PS/2 Mouse
 14:      69540          XT-PIC  ide0
 15:        117          XT-PIC  ide1
NMI:          0
ERR:          0

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Robert
Webb
Sent: Friday, April 01, 2005 1:55 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Squeaking / chirping on ZAP Digium TDM400P


On Fri, 1 Apr 2005 16:42:54 -0500
  "Kellner, Peter" <Peter at PeterKellner.net> wrote:
> 
> I've got an asterisk server 1.07 with a Digium TMD400P 
>(2fxo;2fxs).  I
> have it configured to answer an incoming line and 
>transfer to one of the
> 2 fxs's and it works.
> 
> I have noticed that on incoming calls I get intermittent 
>squeaks and
> chirps on the line that I don't get if I plug the 
>incoming line to a
> PSTN.  I'm the only conversation on this hardware and it 
>is a 2.2Ghz P4
> with 512Meg RAM.
> 
> Any ideas on what or how to look for this problem?
> 
> Thanks,
> 
> -Peter

Could be an interrupt conflict. Do a "cat 
/proc/interrupts" on a linux command line and see if the 
TDM is sharing an interrupt with another device.
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