Vladimir Alperovich

System and method for displaying short messages depending upon location, priority, and user-defined indicators

Method and apparatus for restricting operation of cellular telephones to well delineated geographical areas

System and method for sending a short message containing purchase information to a destination terminal

System, method and apparatus for automatic feature activation/deactivation based upon positioning

System and method for delivery of short message service messages to a restricted group of subscribers

System, method, and apparatus for delivery of location information about caller

Providing location-based call forwarding within a mobile telecommunications network

System and method for location-based group services

Emergency call back using MSC numbers

Optimal use of logical channels within a mobile telecommunications network