Job Recruitment Website - Property management - Without a key and a magnetic card, how can I open the electronic door of the corridor? Press which number or what?

Without a key and a magnetic card, how can I open the electronic door of the corridor? Press which number or what?

At present, the doorman number is usually pressed, and then people in the room call to confirm their identity. Press a key and the iron gate downstairs will open.

In addition, without keys and magnetic cards, using infrared induction and voiceprint recognition system to confirm the identity and open the door can also achieve the effect you said.