LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Centralized switching system – Call distribution to operator

Call and data correspondence in a call-in center employing...

Telephonic communications – Audio message storage – retrieval – or synthesis

Call announcement arrangement

Telephonic communications – Audio message storage – retrieval – or synthesis

Call announcement arrangement

Telephonic communications – Special services – Call diversion

Call answering

Telephonic communications – Special services – Anonymous party

Call appearance reservation arrangement

Telephonic communications – Special services – Conferencing

Call arrangement and connection using messaging

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

Call authorization and billing message routing capability

Telephonic communications – Special services – Reserved call

Call back method

Telephonic communications – Special services – Repetitive call attempts

Call back service for a regulatory restrictive area

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

Call billing and measurement methods for redirected calls

Telephonic communications – Telephone line or system combined with diverse electrical... – Credit authorization

Call block disabler

Telephonic communications – With check operated control – Other than coin

Call blocking based on call properties

Telephonic communications – Reception of calling information at substation in wireline... – Extracting call id from transmitted signal

Call blocking device and methods

Telephonic communications – Call or terminal access alarm or control – At switching center

Call blocking system

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

Call box

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

Call box with keyboard communication

Telephonic communications – Special services – Call diversion

Call branding system

Telephonic communications – Centralized switching system – Call distribution to operator

Call center administration manager

Telephonic communications – Centralized switching system – Call distribution to operator

Call center administration manager