[asterisk-users] ztdummy installed but choppy audio warning on load

Daniel Pocock daniel at readytechnology.co.uk
Sat Sep 9 14:01:33 MST 2006


zap show status

will tell you if Asterisk is really using ztdummy

Make sure you have chan_zap.so enabled in modules.conf (or that it isn't 
disabled with a noload declaration)


Nigel Godfrey wrote:

> On a new set up Centos 4.4, kernel 2.6.9-42.0.2.EL, yum updated, 2
> BRI-HFC cards, no digium hardware.
>
> modprobe zaptel and modprobe ztdummy are both in rc.local, and lsmod 
> gives:
> [root at asterisk ~]# lsmod
> Module                  Size  Used by
> ztdummy                 3924  0
> zaptel                206852  5 ztdummy
>
> When asterisk starts it logs warnings:
>
> Sep  9 20:28:00 WARNING[2645] res_musiconhold.c: Unable to open pseudo
> channel for timing...  Sound may be choppy.
> Sep  9 20:28:02 WARNING[2645] chan_iax2.c: Unable to open IAX timing
> interface: No such file or directory
>
> I've Googled the error message, but to no avail. Any thoughts, please?
>
>
> nigel.
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