I am really new to this so will need a little extra explaining if possible. I am running 3cx 12.0.3xxxxxx, this replaced an older Avaya system. There is an existing Avaya Universal paging module that has always been used for overhead paging. The Avaya system had 2 extensions that played 2 different recorded messages. I have been trying to read some and make heads or tails of this, but am needing some help getting it setup. It appears that I need a ATA in order to interface between the 3cx system and the Avaya Universal paging module, so I purchased a Patton M-ATA. I also setup an extension and registered the M-ATA with it. I also figure I will create multiple extensions for the warnings and register the M-ATA with each and depending on which one is called it can play a different recorded message. On the Avaya Universal paging module there is a Page Port Input which I figure I am to plug the M-ATA. Now, I figure If I call the Extension, I will be able to speak through the overhead? Next step. Can anyone explain how I get my recordings to play when the appropriate extension is called? I hope this makes sense and thanks for any and all help. ~Confused.