LandOfFree - US Patents - Listing for Telephonic communications

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

Dynamic echo canceller and parameter selection in telephony syst

Telephonic communications – With check operated control – Coin signalling or control

Dynamic escrow type detection system

Telephonic communications – Centralized switching system – Class of service determination or transmission

Dynamic essential line service

Telephonic communications – Centralized switching system – Call distribution to operator

Dynamic force management system

Telephonic communications – Centralized switching system – Call distribution to operator

Dynamic force management system

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

Dynamic frequency passband switching in home phone-line...

Telephonic communications – Special services – Anonymous party

Dynamic graphical analysis of network data

Telephonic communications – Special services – Anonymous party

Dynamic graphics arrangement for displaying spatial-time-series

Telephonic communications – Centralized switching system – Power supply

Dynamic impedance element for a battery feed circuit

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

Dynamic individual phone rates

Telephonic communications – Special services – Locating using diverse technology

Dynamic information publication enabling direct access to a...

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

Dynamic interactive voice architecture

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

Dynamic interactive voice architecture

Telephonic communications – Audio message storage – retrieval – or synthesis – Interacting voice message systems

Dynamic interactive voice interface

Telephonic communications – Centralized switching system – Call distribution to operator

Dynamic load balancing between multiple locations with...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

Dynamic load limiting

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

Dynamic message-mailbox size variation

Telephonic communications – With check operated control – At terminal station

Dynamic microphone handset and amplifier unit

Telephonic communications – Special services – Service trigger

Dynamic network automatic call distribution