Method and device for establishing bidirectional communications

Method and device for returning to a normal communication link a

Method and instructions for fax mail user interface

Method and means for preventing fraudulent use of telephone netw

Method and microcomputer system for the automatic, secure and di

Method and system aiding medical diagnosis and treatment

Method and system aiding medical diagnosis and treatment

Method and system for a wireless digital message service

Method and system for activation of a local terminal

Method and system for adaptively adjusting modem operating...

Method and system for allowing switched voice and data communica

Method and system for authorization of account-based...

Method and system for automated administrative assistance...

Method and system for billing an ISDN data user interconnection

Method and system for call center screening

Method and system for communicating from an automatic meter...

Method and system for communication caller identification...

Method and system for conducting a multimedia phone cell

Method and system for connecting multiple DSL modems to a...

Method and system for conserving power and improving...