Introduction to remote DTMF trigger

Introduction to remote DTMF trigger

This document introduces Introduction to remote DTMF trigger feature.
All Fanvil intercoms’ output support remote DTMF trigger, which is a simple but practical
function, and can be used to trigger the output port of intercom from remote side, it allows
user to trigger the output port, like open the door or turn on the alarm light which is connected
to ‘Intercoms’ from remote party and helps user create various unmanned control solutions
using intercoms. This will allow user to manage output port quicker and much more convenient,
and create unmanned control solutions, i.e. in unmaned control parking lot or in office,
operator doesn’t need to go to the outside where the intercom is intalled to open the door, he
can open the door via phone calls directly.