Distributed bidirectional communication network structure in whi
Distributed control system having central control providing oper
Distributed database architecture and distributed database manag
Distributed database architecture and distributed database manag
Distributed directory for information stored on audio quality me
Distributed processing in conference call systems
Distributed processing method for checking status of processor i
Distributed subscriber adjunct services system
Distributed system for sharing of communication service...
Distributed telephone conference control device
Distributed virtual cache method for use in a database query con
Distributed voice conferencing
Distribution of services in telecommunications network
Double-registration avoidance method for use in registering subs
DTMF control
Dual plane cross point switch architecture for a micro-PBX
Dynamic call response system
Dynamic call vectoring
Dynamic call waiting based on caller ID
Dynamic graphical analysis of network data