![@name](/images/flag/s/en.gif)
1. When a station calls in, pick up the handset and press the selector button corresponding to the lit LED. 2. Speak to the person at the remote station through the handset. The person at the remote station speaks hands free. 3. To release the door at the calling party's location, press the "door release" button while still in communication with the calling station. This will activate the corresponding relay as long as the button is being held, which will activate the door release mechanism. 4.