Dat storage back-up and modem apparatus
Data acquisition and error correcting speech recognition system
Data communication apparatus having a function of recording a vo
Data communication apparatus having a reprogrammable voice memor
Data communication apparatus having automatic data reception inf
Data communication apparatus with voice communication control
Data distribution system, distribution equipment, terminal...
Data message mirroring and redirection
Data network based telephone messaging system
Data recording system for IP telephone communication
Database for use in telephone communications
Delivery of urgent messages by integrated forced delivery...
Detection and exploitation of cache redundancies
Detector for use with an automatic disconnect feature in a telep
Device and method for telephone interconnections for a communica
Device and method for telephony interconnection intended to offe
Device and method of channel effect compensation for...
Device and method of interfacing voice data between a switch...
Device for and method of outputting data on display section...
Device for processing digital signal in audio-frequency bandwidt