[Asterisk-Users] Two zaptel T1 cards: no clock from one

[Rich Adamson]

> Oh, you got to be kidding me. :)  I've removed zaptel, wct1xxp,
> wct4xxp completely, and reloaded in the same order as they are loaded,
> alternate different ways, etc.  No help.  After trying only wct1xxp
> with 12 channels and seeing alarms clear, something stray was left
> saying span 5 was 'UNCONFIGURED' (with only 1 span in zaptel.conf). 
> So, I rebooted ro see if I could reset some phantom state, and viola! 
> The damn thing is just fine now.
> 
> Thanks for your help, all.  I'll see if I can recreate this again and
> file a bug report, if so.

FWIW, I've been working on a RHv9 system with a TDM04B and T100P and
also noticed some rather unusual module loading issues. Not sure why,
but doing:
 1) modprobe zaptel, insmod wct1xxp, then insmod wctdm works fine,
 2) modprobe zaptel, insmod wctdm, then wct1xxp always fails.

I played around with the ordering of channels in /etc/zaptel combined
with approach 1 and 2, but the only combination that ever worked is #1.
That suggests the t100p driver is sensitive/dependent on something
else that has not been documented/discussed. After doing several
iterations on the above, I changed the order of the modules in
/etc/rc.d/init.d/zaptel and now it reloads reliably from a reboot and
from 'service zaptel stop/start'.

Best guess (as a non-programmer) is some sort of bug, probably in the
wctdm driver since it seems to have other driver problems, that no
one has identified as yet. But then, how many people actually have
those two specific digium cards installed in the same system?

Rich