Leaderboard

As u already have the com2400 then u can add the speech module to it (goes inside the panel) which allows it to ring you instead of only texting. The speech dialler and speech and text dialler is a standalone product that looks like a keypad which can ring and text you when it receives an input from any make of alarm. Old product tried and tested but nothing special. If you want a second backup communicator (which rules out speech dialler as it's connected to the same phone line as the com2400 as well as ip) then get the speech module for phone calls and also a Comgsm that will give you two way texting over gsm with a pay as you go simcard.

So linked sound option Generally +12v to +12v Gnd to an output that switches from 12v to ground, bell output or another pgm