LandOfFree - US Patents - Listing for Telephonic communications,Diagnostic testing, malfunction indication, or electrical...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing communications systems

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Testing method and apparatus for verifying correct connection of

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing method for subscriber line testing

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing of communication services and circuits

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing of digital subscriber loops using multi-tone power ratio

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing of digital subscriber loops using multi-tone power...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing of distributed communications networks

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage

Testing of subscriber lines in a digital switch

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Using portable test set

Testing of telephone lines

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage

Testing system for digital transmission lines

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing system for local subscribers

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Testing system for voice system equipment in switchboard

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Testing telecommunications equipment

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line

Testing telecommunications equipment

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Testing transmission links

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Testing voice message applications

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage

Testing within communication systems using an arq protocol

Telephonic communications – Diagnostic testing – malfunction indication – or electrical...

Time domain reflected signal measurement using statistical...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring

Toll fraud control override