Patent ID: 7711861
Filing Date: 2010-05-04
Classification: H04M,H04W

Abstract:
1. A method comprising: establishing a communication session from a first device of a user to a second device of the user, said first device comprising a first radio transceiver and a first indicator; entering a secure communication mode with said first device; establishing, at said first device of said user, an indication sequence comprising a random pattern of at least one of light blinks and sounds for operating a second indicator of said second device of said user; sending said indication sequence in said secure communication mode from said first device to said second device; and causing said first indicator of said first device and said second indicator of said second device to indicate using said indication sequence, wherein said first indicator and said second indicator synchronize if said first device and said second device are communicating in said secure mode and do not synchronize if at least one of said first device and said second device is in communication with a third device.