Communication system having telephonic function
Communication terminal apparatus having a relaying function
Communication terminal device and dialing key
Communication terminal having a charge displaying function
Communication terminal, and dial registration method and...
Communication with a non-telephone terminal via a telephone swit
Communications apparatus and communication method
Communications data terminal capable of performing a plurality o
Communications terminal apparatus capable of detecting wide rang
Communications terminal unit and method for controlling the...
Computer system with mode switching function and method of contr
Concurrent voice and data communication
Control device for a facsimile apparatus
Control of electronic information delivery
Cordless subunit facsimile system