Foldable portable telephone set
Folding built-in camera mobile communications terminal that...
Folding communication terminal apparatus
Folding portable telephone set
Foreign potential checker
Form creating and ordering system
Formed lens tab for designation card insert
Four-party automatic number identification circuit arrangements
Frame format for video codec
Fraud detection based on call attempt velocity on...
Fraud detection based on call attempt velocity on...
Fraud monitoring in a telecommunications network
Fraud monitoring system
Fraud preventing method for a communication network
Fraud prevention in a public telephone station
Fraud prevention in a telecommunications network
Fraud prevention in an electronic coin telephone set
Free standing signalling and message printing system
Free-call certificate service system
Frequency agile broadband communications system