Delayed data transmission system
Delayed seizure on associated devices
Delivery of call features to a user device via a multimedia...
Delivery of caller identification data to a mobile device...
Demultiplexer circuit
Designed console for providing a variety of cellular...
Destination dependent coding for discrete multi-tone modulation
Detachable shoulder rest apparatus for telephone handsets
Detecting a bridge tap or end-of-line of a telephone line...
Detecting and preventing fraudulent use in a...
Detecting faults in subscriber telephone lines
Detection of ground or loop start configuration in telephone...
Detection of looping communication channels
Detection of telephone number spoofing
Detection of the answering tone for modems and fax machines
Detection of tones while minimizing incorrect identification...
Detection system for component identifiers in a...
Detector circuit for communication lines
Detector circuit for sensing battery polarity and loop closure
Determination of a data type of buffered information for...