New to forum, so I appologise in advance if this is an old question. Can I use an OpenVox B100P card (ISDN2) with 3CX (Free Edition). I have been tasked with looking at (lower) cost IP PBX. Asterisk distros and 3CX are on our radar. We have a B100P and 3 Linksys IP handsets and would like to setup trial systems. Thanks in advance.