User-to-user signalling

Industry

CPC
H04Q2213/206

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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems

Current Industry

H04Q2213/206User-to-user signalling

Industries

Patents Grantslast 30 patents

Information Patent Grant
Automatic call back under control of a telephone terminal
- Patent number 6,009,157
- Issue date Dec 28, 1999
- Lucent Technologies Inc.
- Bruce Merrill Bales
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for sending out absent messages from ISDN exchange system
- Patent number 5,937,039
- Issue date Aug 10, 1999
- SamSung Electronics Co., Ltd.
- Seung-Hwan Cho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Facsimile apparatus employing user-to-user information on an ISDN
- Patent number 5,583,658
- Issue date Dec 10, 1996
- Canon Kabushiki Kaisha
- Katsuhito Takezawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data management method and system thereof
- Patent number 5,568,551
- Issue date Oct 22, 1996
- Sony Corporation
- Isao Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic detection of digital call paths in a telephone system
- Patent number 5,528,679
- Issue date Jun 18, 1996
- Primary Access Corporation
- Jeff Taarud
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mixed-mode transmission control apparatus for adding an identificat...
- Patent number 5,465,326
- Issue date Nov 7, 1995
- Ricoh Company, Ltd.
- Nozomi Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for controlling data transmission of an integrated services...
- Patent number 5,305,318
- Issue date Apr 19, 1994
- Ricoh Company, Ltd.
- Shinichiro Ozeki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for performing interlocution at a plurality of te...
- Patent number 5,280,583
- Issue date Jan 18, 1994
- Hitachi, Ltd.
- Yoshiyuki Nakayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semi-automated operator assistance telecommunication calls
- Patent number 5,046,183
- Issue date Sep 3, 1991
- AT&T Bell Laboratories
- Gary L. Dorst
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time and charges information delivery for operator assistance telec...
- Patent number 5,043,983
- Issue date Aug 27, 1991
- AT&T Bell Laboratories
- Gary L. Dorst
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data terminal equipment and data transmission control method
- Patent number 5,012,470
- Issue date Apr 30, 1991
- Ricoh Company, Ltd.
- Toshifumi Shobu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for signaling an existing telephone communicat...
- Patent number 4,560,833
- Issue date Dec 24, 1985
- Krone GmbH
- Jens Weber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

User-to-user signalling

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Automatic call back under control of a telephone terminal

Method for sending out absent messages from ISDN exchange system

Facsimile apparatus employing user-to-user information on an ISDN

Data management method and system thereof

Automatic detection of digital call paths in a telephone system

Mixed-mode transmission control apparatus for adding an identificat...

Method for controlling data transmission of an integrated services...

System and method for performing interlocution at a plurality of te...

Semi-automated operator assistance telecommunication calls

Time and charges information delivery for operator assistance telec...

Data terminal equipment and data transmission control method

Method and apparatus for signaling an existing telephone communicat...