Satellite radio warning system and method

Security alarm operation in telephone device

Security system

Security system

Security system with telephone controller

Sequence-based positioning technique

Sequence-based positioning technique

Signal acquisition in a satellite telephone system

Single telephone number calling method and calling apparatus...

Solutions for voice over internet protocol (VoIP) 911...

Speakerphone control techniques and emergency call systems

System and a method for locating a mobile terminal, in...

System and method for a handset-based emergency audible beacon

System and method for an emergency location information...

System and method for automatic storage and retrieval of...

System and method for bridging an emergency call with an...

System and method for communicating between a special number...

System and method for communicating the location of an...

System and method for conditionally attempting an emergency...

System and method for delivery of low battery indicator for...