Looking for options for a gate phone and controller that works with IP Office 500 V2. Ideally there will be a button at the gate that rings all the phones at the plant and then the gate can be opened remotely by the one who answered the phone. Thanks.
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Have a look at equipment from Viking Electronics - www.vikingelectronics.com
You will probably have better results with a version that connects via an Analog STATION port, instead of a Loop Start Trunk port, as most of the gate controllers do not generate enough ring voltage to trip on the IP Office.
As far as opening the gate, these gate phones and controllers have a DTMF "ear" that will listen to you dial on your keypad, pressing a certain digit will trigger a relay to cycle the gate or door to open.
There are 2 relay contacts built into the IP Office, but you need to build your own adjunct relay to utilize them.
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