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

[Tony Mountifield]

In article <fe431add0609091353g66e59870ude5513341e21480a at mail.gmail.com>,
Nigel Godfrey <nigelcgodfrey+asterisk-users at gmail.com> 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?

Don't use just modprobe - instead, remove those modprobes from rc.local,
and in the zaptel source directory do: make config

That will install a proper startup script in /etc/rc.d/init.d/zaptel.

Having done that, zaptel will start up at boot, and you can stop and
start it using "service zaptel stop" and "service zaptel start".

The startup script checks to see that the associated device files get
properly created by udev. If they don't, look for the asterisk file
called README.udev

Cheers
Tony
-- 
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org