Data extraction process
Detecting local exchange failure and resultant control of a comm
Device and method for transferring unbundled network...
Device and method for transferring unbundled network...
Device and method for transferring unbundled network...
Dial plan generator
Dialed number recognition arrangement
Dialed number service routing in a telephone network by...
Digital exchanging apparatus and method of communication...
Digital loop carrier system
Direct distance dialing (DDD) access to a communications service
Distributed gateway system for telephone communications
Distributed key telephone station network
Drive and method for transferring unbundled network elements...
Dynamic adaptation to congestion in connection-oriented...
Dynamic load limiting