Hello,
I encount some difficulties to set up my Asterisk server. In fact I want to use a b410p.
So, I’ve installed libpri, dahdi and Asterisk but the card has red alarm.
I want to join my pstn over BRI (T0)
Before, with Zaptel, we needed to install mISDN and the ztdummy but now I don’t understand how it is working.
Please help me 
Thank
(Sorry for my bad english)