asterisk users - Sep 2006 - ztdummy installed but choppy audio warning on load

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@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.

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@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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In article <fe431add0609091353g66e59870ude5513341e21480a@mail.gmail.com>,
Nigel Godfrey <nigelcgodfrey+asterisk-users@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@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@softins.co.uk - http://www.softins.co.uk
Play: tony@mountifield.org - http://tony.mountifield.org