The Telguard is designed to ring your phone of choice once the relevant property button has been pressed on the external unit. You will receive a normal telephone call, and the number that appears on the screen (where applicable) is the unit telephone number and can be stored as “door/gate” for future reference.
Answer the call as normal, and once you have confirmed the identity of the visitor you simply press the # key (by default) and this will trigger the operating equipment. You should hear a tone down the line confirming this has been accepted and the call will be dropped, or you can simply hang up.
If you do not wish to allow the visitor access, simply hang up the call. If you have multiple entrances that need controlling, you simply enter a different command on your telephone keypad to trigger the alternative equipment.