5
1. Can hear a call sound from receiver when press the call button of doorstation by visitors.
2. Talk with visitors when lift up handset.
3. Lift up hand set, press the guard house call button, and can hear a call sound in guard
house. Then can talk with guard house when raise up handset. During conversing with
guard house, able to hear a sound in door station.
4. After ascertain the visitor, press the door release button and then open the door.
NOTE : No need to connect extra power
Power's supplying from doorstation
4.
Operation
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