Wireless doorbell rings you in

After testing the technology in its home Dutch market, wireless startup Waleli now plans to sell its GSM Doorbell internationally, beginning in northern Europe, the company said Tuesday.

The wireless doorbell allows apartment dwellers, home owners, and small businesses to answer their doorbell, talk to visitors, and even open the door remotely with their GSM phones.

The GSM Doorbell consists of four parts: an intercom, an electronic lock, a GSM-enabled doorbell, and a SIM (subscriber identification module) for the GSM device.

When someone presses the doorbell device, it rings your handset, allowing you to communicate with visitors and, by entering a pincode, to grant them access to your home, all without having to leave your location.

The technology can be useful when dealing with delivery people, door-to-door solicitors, and many others who need or want to stop by. And you don't have to worry about locking yourself out of the house or apartment again because the machine will recognize your mobile's number and unlock the door for you

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