asterisk users - Jul 2008 - Asterisk CAS connection to VConsole ISDN simulator

I'm attempting to get Asterisk to talk with a VConsole ISDN simulator 
that supports the following CAS protocols:

CAS E&M Wink Start FGD
CAS E&M Wink Start FGB

I've tried configuring the Asterisk end with em_w, featb, featd, featdmf 
but with each of these, it either doesn't work at all, or I see calls 
coming in to Asterisk that shouldn't be, and unexpected robbed bit 
patterns at the simulator end.

Has anyone else had experience connecting to a VConsole device, or 
failing that, can anyone point me towards the spec that each of these 
Asterisk protocols implements?

Thanks,
Mark

Mark Mickan wrote:
> I've tried configuring the Asterisk end with em_w, featb, featd,
featdmf
> but with each of these, it either doesn't work at all, or I see calls 
> coming in to Asterisk that shouldn't be, and unexpected robbed bit 
> patterns at the simulator end.
Can you post what combinations of settings you used in zaptel.conf and
zapata.conf to try these signaling modes?

-- 
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)