Caller adaptive voice response system
Calling number display and recording system
Calling party designated message displaying method and apparatus
Cellular telephone including language translation feature
Communication apparatus receiving information from portable info
Communication system having unified messaging
Communication system with operation-procedure guiding function b
Communication system with voice announcement means
Communication terminal
Communications line security device
Conference mailbox service
Customized, billing controlled call bridging system
Customized, billing-controlled call bridging system
Customized, billing-controlled call bridging system
Customized, billing-controlled call bridging system
Dat storage back-up and modem apparatus
Data communication apparatus having a function of recording a vo
Data communication apparatus having a reprogrammable voice memor
Device for processing digital signal in audio-frequency bandwidt
Dial-less calling device