A wireless-based communications system is provided with a method and apparatus for automatic verification of the identity of a mobile phone user in order to eliminate cellular piracy. A first embodiment implements a memory-based verification and a second embodiment implements an algorithm-based verification...http://www.google.co.uk/patents/US5457737?utm_source=gb-gplus-sharePatent US5457737 - Methods and apparatus to verify the identity of a cellular mobile phone
