Direct inward dial integration apparatus
Directory answering machine
Directory assistance systems
Directory management system and method
Directory structure for large scale telecommunications network a
Disambiguation of alphabetic characters in an automated call pro
Discrete stress-reducing human-telecommunications interface
Dispatch board system with displays for indicating the status of
Display of call related information regarding a called party
Distributed control and storage for a large capacity messaging s
Distributed customizable voicemail system
Distributed network applications platform architecture
Distributed packetized switching cellular radio telephone commun
Distributed redirect server
Distributed redirect server
Distributed system for call processing
Distributed system for call processing
Distributed system for call processing
Distributed voice mail system
Distributed voice system and method