What will they think of next? A company called Waleli has developed the GSM-doorbell which allows you to remotely open your door/gate/etc. using your mobile phone.

The system is build up of 4 parts:

An intercom

The GSM-doorbell

An electronic lock

A simcard for the GSM-doorbell

Ring the doorbell (intercom); the intercom signals the GSM-doorbell. The GSM-doorbell rings the number that is displayed. The occupant answers the call and is able to speak to the visitor. By entering a pincode on their mobile phone the occupant is able to open the door. What will they think of next?