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

Proactive analysis of communication network problems

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

Proactive maintenance application

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

Proactive maintenance application

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

Proactive maintenance application

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

Probe for sampling differential electromagnetic fields

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

Processes and systems for correlating work orders

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

Processes and systems for correlating work orders

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

Processes and systems for creating and for managing trouble...

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

Processes and systems for creating and for managing trouble...

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

Processes and systems for creating maintenance reports for...

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

Processes and systems for managing testing of communications...

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

Programmable automatic call-thru set

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

Programmable source for supplying controllably variable AC/DC vo

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

Protection and recovery of telephone line interface circuits

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

Protective circuit for the overvoltage protection of a subscribe

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

Protective circuit for the overvoltage protection of a subscribe

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

PSTN call simulator and method of operation for testing...

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

PSTN VOIP reconciliation

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

Public modular-telephone management system