LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Audio message storage – retrieval – or synthesis – Digital signal processing

Distribution device in a data signal processing...

Telephonic communications – Audio message storage – retrieval – or synthesis – Digital signal processing

Distribution device in a data signal processing...

Telephonic communications – Centralized switching system – Structure of equipment

Distribution frame board

Telephonic communications – Centralized switching system – Call distribution to operator

Distribution of calls among automatic call distributors of a sin

Telephonic communications – Subscriber line or transmission line interface – Power supply

Distribution of current draw in a line powered DAA

Telephonic communications – Special services – Service profile

Distribution of services in telecommunications network

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

Distributor with a test access

Telephonic communications – Multi-line or key substation system with selective switching... – Detail of hold circuitry

Diverter interface between two telecommunication lines and a sta

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

DMT test method for determining ADSL capability of cables

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection

DNIC peripheral extender

Telephonic communications – Centralized switching system – Call distribution to operator

Do-not-call compliance management for predictive dialer call...

Telephonic communications – Subscriber line or transmission line interface – Network interface device

DOCSIS network interface device and methods and systems for...

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

Document distribution system

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

Document transmission method upon generation of an error during

Telephonic communications – With check operated control – Fraud or interference prevention

Domestic origination to international termination country...

Telephonic communications – With usage measurement – Call charge metering or monitoring

Domestic origination to international termination country...

Telephonic communications – With usage measurement – Call charge metering or monitoring

Domestic to country call intercept process (CIP)

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

Door ajar signalling device

Telephonic communications – Audio message storage – retrieval – or synthesis – Dynamic audio signal recording or reproduction

Door answering machine