LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Special services – Automatic directory service

Directory integration in mobile systems

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation

Directory management system and method

Telephonic communications – Special services – Service trigger

Directory number portability in telephone networks

Telephonic communications – Centralized switching system – Switching controlled in response to called station...

Directory number translation in a distributed control switching

Telephonic communications – Audio message storage – retrieval – or synthesis

Directory structure for large scale telecommunications network a

Telephonic communications – Supervisory or control line signaling – Signal receiver

Disabling tone detector for network echo canceller

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

Disambiguation of alphabetic characters in an automated call pro

Telephonic communications – Emergency or alarm communications – Announcement or alarm received at terminal station

Disaster alert by telephone system

Telephonic communications – Subscriber line or transmission line interface

Discharging envelope detector

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

Disclosing the receipt of new electronic message

Telephonic communications – Call or terminal access alarm or control – Time out

Disconnect circuit for use between telephone switching systems

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection

Disconnect signalling detection arrangement

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

Discrete stress-reducing human-telecommunications interface

Telephonic communications – Special services – Call diversion

Discretionary call forwarding

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

Dispatch board system with displays for indicating the status of

Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm

Dispatcher-activated response identification light (DARIL) and m

Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm

Dispatcher-activated response identification light (DARIL) and m

Telephonic communications – Terminal – Housing or housing component

Dispenser and unlatching mechanism for a hand-held pay station t

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

Dispenser with vandal resistant coin validator runway