When using a mobile phone is not magic key to open hotel doors.

<p> the near future, may no longer need to use the hotel room key, because the researchers developed a new phone system is the key to unlocking replace the traditional way. .</ P> <p> </ p> <p> a company called OpenWays (Editor's comments: name is bright, and unlock a very accurate) of the French company has developed a new method to open hotel door - the customer only .take your phone at the door and press a button on the phone will be able to open it. .</ P>.