The GSM 4G Intercom contains a professional industrial-grade GSM engine that receives calls via its SIM number like a normal GSM phone. The system operates in the GSM module quad-band 850/900/1800/1900 and works on multiple 4G bands. This intercom works with both 2G and 4G SIM cards.

When a visitor arrives at your property, they press the call button on the intercom, which then connects to a phone number of your choice (up to two numbers can be added to be called in sequence). Once you answer the call and speak to the caller, you can open the gate from your phone and let the caller in, no matter where you are in the world.

You can also open the gates by dialling the number of the SIM card that is in the device or by sending an SMS.
The advantages over other systems are that you don't have to leave the car to open your gates, avoiding weather or security problems, and you don't have to carry around a separate remote control device or even replace it if it gets lost. No phone line is required as the device uses the mobile phone network to make the calls.