sn4120

  1. Patton SN4120 and Fax machine

    Hello everyone, I am testing a deploy of an on-premises 3CX server (Debian). I would like to get rid of an old freepbx system. Everything runs smoothly, the only issue I have is regarding an ISDN line with two numbers. The digital output of the ISDN socket is connected to a Patton SN4120...