A new GSM Doorbell will call your mobile phone when the visitor presses the doorbell. The GSM Doorbell will also establish a video call so you can see who is calling.
The GSM Doorbell is just like a door phone but enables you to answer callers to your door from the convenience of your mobile phone or smart phone.
The GSM Doorbell uses a SIM card to provide low cost GSM connectivity and convenience for this low cost GSM doorphone solution.
