Computer-telephony (CT) system including an electronic call requ

Computerized mail notification system and method which detects c

Concurrent state machine space in a telecommunications network

Connection control method for personal communications

Context-dependent call-feature selection

Control method for station-to-station slave transmission

Cover for telecommunications equipment

Coverage of redirected calls

Customer controlled service mediation management

Data communication apparatus and method for switching from g3 an

Detecting unauthorized modification of communication unit based

Device for managing voice data automatically linking marked mess

Dial pulse selection

Digital audio interface in a mobile telephone

Digital dictation system

Digital dictation system having a central station that includes

Directory assistance system

Distributed bidirectional communication network structure in whi

Distributed control system having central control providing oper

Distributed database architecture and distributed database manag