Source adaptive digital subscriber line and method

Special service call routing

Speech detection device for detecting a speech signal in an...

Splitter-less digital subscriber loop modems with improved...

Splitterless ethernet DSL on subscriber loops

Splitterless modem with integrated off-hook detector

Stand alone electronic mail notifying device

Standalone telephone answering machine with store and...

State control for a real-time system utilizing a nonprocedural l

Station to station message arrangement

Statistical analysis system for use with public communication fa

Storage-and-forward apparatus

Store and forward switching type communication control apparatus

Subscriber initiated non-intrusive network-based analysis of fac

Subscriber terminal for ISDN networks

Superposition of data over voice

Superposition of data over voice

Supervisory interface controller and method for remotely control

Switch device adapted to interface between an incoming telephone

Switch system for directing call from a calling to a receiving i