3CX Door Control for Fanvil and Grandstream
We’ve recently installed a 3CX system where the phones are Fanvil and the door intercoms are Grandstream. Maybe this is just balancing the one from last year with Grandstream phones and a Fanvil PA2 to control the door… 3CX doesn’t have any native way to control these relays. so for the Fanvil phones you have to log into each phone