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[gustavo at utopixnetwo...]

Hi Jessi,
It seems that I have the same problem. I'm using an Asterisk with a
TE120P card with R2 cas signalling. The channels are working ok but the
PBX on the other side shows MFAS alarm. I have dig the code of the
zaptel drivers but I have not found anything where you can change the
bit pattern of the timeslot 0.

I have found something in zaptel-base.c but I m not sure if this code is
relevant to the problem we have.

...

chans[ch.chan]->sig = ch.sigtype;
if (chans[ch.chan]->sig == ZT_SIG_CAS)
chans[ch.chan]->idlebits = ch.idlebits;
else
chans[ch.chan]->idlebits = 0;

...

Have you found anything to solve the problem?

Best regards,

Gustavo