Radio mobile terminal provided with an additional reader of...
Radio selection call receiver capable of increasing receiving ra
Radio telephone apparatus capable of detecting a drop of...
Real time charging of delivery and receipt of short message...
Real-time interconnect billing system and method of use
Recyclable cellular telephone and method and apparatus for suppo
Reducing calling costs for wireless phones using multiple...
Remote access management systems
Replenishment of pre-paid wireless telephone accounts using...
Replenishment of prepaid accounts during multimedia sessions
Retrieving a bill via a coded surface
Retrieving a program state via a coded surface
Retrieving a program via a coded surface
Retrieving jurisdiction information from home location register
Roaming and hand-off support for prepaid billing for...