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Variable geometry battery compartment for accommodating differen

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

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Verification of subscriber lines prior to cutover to a new switc

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

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Voice interface unit for line conditioner control

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

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Voice messaging

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

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Voice messaging

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

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Voice monitoring method for a telephone switching equipment

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

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Voice monitoring system for remote subscribers

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

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Voice over digital subscriber line call redirection for...

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

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Voice path testing in telecommunications system

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

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Voicemail test system

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

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VoIP call through tester

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

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