Desk sharing with automatic device relocation
Desk/wall mounted telephone subset
Desktop telephony application program for a call center agent
Desktop telephony application program for a call center agent
Destination device billing according to call recipient
Destination device order billing according to call recipient
Detecting faults in subscriber telephone lines
Detecting faults in subscriber telephone lines
Detecting high usage telecommunications lines
Detecting local exchange failure and resultant control of a comm
Detecting make-break clicks on a telephone line
Detecting possible fraudulent communication usage
Detecting unauthorized modification of communication unit based
Detecting whether a telephone line has been disconnected
Detection and authentication of multiple integrated receiver...
Detection and exploitation of cache redundancies
Detection of a call-waiting tone by a modem
Detection of both voice and tones using Goertzel filters
Detection of bridge taps by frequency domain...
Detection of bridged taps by frequency domain reflectometry