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

Tone distribution apparatuses, systems, and methods

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

Tone location device for locating faults in a paired line

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...

Topology-based fault analysis in telecommunications networks

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...

Topology-based fault analysis in telecommunications networks

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

Traffic generator analog

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

Traffic simulator for testing exchanges taking the subscriber-sy

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

Traffic track measurements for analysis of network troubles

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

Transaction support system and information terminal unit...

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

Transmission line signal sensing circuit employing means for con

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Transmission power control method in asymmetric digital subscrib

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Including fault responsive disconnection of tested component

Transmission system having stand-by line switching facility

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

Transmit power control for DSL modems in splitterless...

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

Tree hierarchy and description for generated logs

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

Troubleshooting interface for client-routed toll-free...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Including fault responsive disconnection of tested component

Trunk cable fault detection and reconfiguration arrangement in a

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

Trunk identification system

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

Twisted pair status indicator

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

Two-ended wireline pair identification system

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

Two-wire channel unit with loopback test capability