Call deferral system for telephones
Call management system with protocol converter and port controll
Call management system with protocol converter and port controll
Call message delivery system and method utilizing caller-selecte
Call processing system with call screening
Call processor for facilitating call completions
Call routing device employing continuous speech
Call transfers by voice messaging system (VMS) integrated to a p
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