[asterisk-users] Correct voltages but no dial tone on TDM2400P

Tilghman Lesher tilghman at mail.jeffandtilghman.com
Wed Oct 31 07:59:18 CDT 2007


On Tuesday 30 October 2007 18:22:21 Alex R Green wrote:
> The TDM2400P card has three green FXS modules close to the 50pin
> connector and three red FXO modules at the rear. The card was installed
> in the system prior to loading Trixbox. I think the card is working:
> zaptel.conf was set up correctly with the first 12 channels fxsks and
> the last 12 channels fxo kewlstart.

Your signalling is backwards.  The first 12 channels are fxs modules,
but they are signalled with fxo signalling, so fxoks=1-12, and the last
12 are fxo modules, but they are signalled with fxs signalling, so
fxsks=13-24.  Ditto for zapata.conf.

-- 
Tilghman



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