LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Audio message storage – retrieval – or synthesis

Technique for administering personal telephone numbers

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor

Technique for analyzing information assistance call patterns

Telephonic communications – Special services – Automatic directory service

Technique for assessing charges for a telecommunication...

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

Technique for attributing communication call transactions to...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Technique for automatic identification of a remote modem

Telephonic communications – Transmission line conditioning

Technique for balancing loads in a communication network

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Technique for compensating for signal attenuation on a telephone

Telephonic communications – Special services – Automatic directory service

Technique for continually assisting a user during an...

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

Technique for controlling ring volume and selectively receiving

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

Technique for detecting call metering in key telephone system

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

Technique for determining a compression ratio for use in process

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

Technique for determining propagating and clear frequency to be

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

Technique for effectively controlling communication links to...

Telephonic communications – Centralized switching system – Call distribution to operator

Technique for effectively processing and dynamically routing...

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

Technique for effectively providing a personalized...

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

Technique for effectively providing a personalized...

Telephonic communications – Special services – Automatic directory service

Technique for effectively providing concierge-like services...

Telephonic communications – Audio message storage – retrieval – or synthesis – Message management

Technique for efficiently accessing telephone messages

Telephonic communications – Special services – Automatic directory service

Technique for enhanced information assistance call routing