LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Emergency or alarm communications – With automatic dialing or transmission of recorded audio...

Control panel with DSL bypass circuit

Telephonic communications – Special services – Service profile

Control program providing method using communication system,...

Telephonic communications – Centralized switching system – With generating of call associated substation signal

Control server employment of offer message from resource...

Telephonic communications – Multi-line or key substation system with selective switching... – With special service

Control system for a plurality of telephone sets

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

Control system for voice mail system

Telephonic communications – Audio message storage – retrieval – or synthesis

Control system of a radio telephone apparatus

Telephonic communications – Special services – Service trigger

Controll of call features provided to a subscriber by a hierarch

Telephonic communications – Call or terminal access alarm or control – At substation

Controllable annunciator using ring signal

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Controllable telephone annunciator

Telephonic communications – Multi-line or key substation system with selective switching... – Switching or supervision feature

Controlled power supply for key telephone system

Telephonic communications – Subscriber line or transmission line interface

Controlled switching mechanism for accomplishing soft...

Telephonic communications – Special services – Reserved call

Controller for a telephone system with code screening of incomin

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

Controller for accessing services from multiple providers of ser

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

Controller for managing data communication with a host computer

Telephonic communications – Audio message storage – retrieval – or synthesis – Multimedia system

Controller for use with communications systems for...

Telephonic communications – Audio message storage – retrieval – or synthesis – Multimedia system

Controller for use with communications systems for...

Telephonic communications – Audio message storage – retrieval – or synthesis – Voice activation or recognition

Controller for use with communications systems for...

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

Controlling advertising output during hold periods

Telephonic communications – Echo cancellation or suppression – Using digital signal processing

Controlling attenuation during echo suppression