Arrangements providing connection between main exchange and sub-exchange or satellite

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H04Q3/58

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HELECTRICITY H04Electric communication H04QSELECTING H04Q3/00Selecting arrangements

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H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite

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Patents Grantslast 30 patents

Information Patent Grant
Incoming call controlling device, incoming call controlling system,...
- Patent number 10,721,546
- Issue date Jul 21, 2020
- NEC PLATFORMS, LTD.
- Fumitaka Takatsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Exchange, call facilitation method, and call facilitation program
- Patent number 10,674,013
- Issue date Jun 2, 2020
- NEC PLATFORMS, LTD.
- Kazuki Katsuta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Incoming-call number notification apparatus, exchange, incoming-cal...
- Patent number 10,397,409
- Issue date Aug 27, 2019
- NEC PLATFORMS, LTD.
- Kotaro Miyata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Nurse call system, nurse call conversion unit, nurse call connectio...
- Patent number 9,787,833
- Issue date Oct 10, 2017
- NEC PLATFORMS, LTD.
- Takuya Omi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Inter-main-apparatus interface device, main-apparatus system includ...
- Patent number 9,772,611
- Issue date Sep 26, 2017
- NEC PLATFORMS, LTD
- Shingo Shimado
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and apparatus for enabling customer premises public branch e...
- Patent number 9,036,627
- Issue date May 19, 2015
- AT&T Intellectual Property I, L.P.
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange system, communication apparatus, telephone incom...
- Patent number 8,873,726
- Issue date Oct 28, 2014
- NEC Infrontia Corporation
- Naoko Ishibe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange system, dial-in incoming call method thereof, an...
- Patent number 8,731,173
- Issue date May 20, 2014
- NEC Infrontia Corporation
- Makoto Mizutani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for enabling customer premise public branch ex...
- Patent number 8,625,579
- Issue date Jan 7, 2014
- AT&T Intellectual Property I, L.P.
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Lower main device and non-IP terminal housing method
- Patent number 8,611,341
- Issue date Dec 17, 2013
- NEC Infrontia Corporation
- Akinori Hikabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone relay device, method of relaying telephones, and program...
- Patent number 8,577,010
- Issue date Nov 5, 2013
- NEC Corporation
- Akihisa Kurashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for enabling customer premise public branch ex...
- Patent number 8,570,884
- Issue date Oct 29, 2013
- AT&T Intellectual Property I, L.P.
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for enabling customer premise public branch ex...
- Patent number 8,340,085
- Issue date Dec 25, 2012
- AT&T Intellectual Property I, L.P.
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic loop provisioning
- Patent number 7,940,750
- Issue date May 10, 2011
- AT&T Intellectual Property II, L.P.
- Farhad Barzegar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadband communications
- Patent number 7,567,550
- Issue date Jul 28, 2009
- British Telecommunications plc
- Ian D Henning
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic loop provisioning
- Patent number 7,564,833
- Issue date Jul 21, 2009
- AT&T Corp.
- Farhad Barzegar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadband loop carrier system
- Patent number 7,492,761
- Issue date Feb 17, 2009
- Occam Networks
- Lisa Farr
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for establishing communication links in an exchange in a swi...
- Patent number 7,321,586
- Issue date Jan 22, 2008
- Siemens AG
- Wolfgang Ochem
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for high-capacity electronic switching
- Patent number 6,850,517
- Issue date Feb 1, 2005
- NEC Corporation
- Motofumi Kakiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital loop carrier system
- Patent number 6,801,614
- Issue date Oct 5, 2004
- Fujitsu Limited
- Eiji Koda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interface between channel units of multiple local exchange carriers
- Patent number 6,788,678
- Issue date Sep 7, 2004
- Lucent Technologies Inc.
- D. Reagan Rice
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,633,631
- Issue date Oct 14, 2003
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SEPARATE STRUCTURE OF A DATAPATH LAYER AND A PHYSICAL LAYER WITHIN...
- Patent number 6,567,401
- Issue date May 20, 2003
- Hyundai Electronics Ind. Co., Ltd.
- Yeon Song Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,496,576
- Issue date Dec 17, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,456,705
- Issue date Sep 24, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Point-to-point-to-point calling
- Patent number 6,424,707
- Issue date Jul 23, 2002
- Lucent Technologies Inc.
- Ranjan Chatterjee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device in telecommunications networks
- Patent number 6,418,219
- Issue date Jul 9, 2002
- Telefonaktiebolaget LM Ericsson (publ)
- Lars Planelid
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,408,060
- Issue date Jun 18, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for linking subscribers to plural communication networks
- Patent number 6,381,327
- Issue date Apr 30, 2002
- Siemens Aktiengesellschaft
- Norbert Loebig
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,377,671
- Issue date Apr 23, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION MANAGEMENT DEVICE, COMMUNICATION MANAGEMENT METHOD, C...
- Publication number 20240022667
- Publication date Jan 18, 2024
- ITALL INC.
- Yusuke KASHIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INCOMING CALL CONTROLLING DEVICE, INCOMING CALL CONTROLLING SYSTEM,...
- Publication number 20190394540
- Publication date Dec 26, 2019
- NEC PLATFORMS, LTD.
- Fumitaka TAKATSUKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOWER MAIN DEVICE AND NON-IP TERMINAL HOUSING METHOD
- Publication number 20130156046
- Publication date Jun 20, 2013
- NEC INFRONTIA CORPORATION
- Akinori HIKABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISES PUBLIC BRANCH E...
- Publication number 20130089088
- Publication date Apr 11, 2013
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TELEPHONE EXCHANGE SYSTEM, DIAL-IN INCOMING CALL METHOD THEREOF, AN...
- Publication number 20120300919
- Publication date Nov 29, 2012
- NEC INFRONTIA CORPORATION
- Makoto Mizutani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TELEPHONE EXCHANGE SYSTEM, COMMUNICATION APPARATUS, TELEPHONE INCOM...
- Publication number 20120213355
- Publication date Aug 23, 2012
- NEC INFRONTIA CORPORATION
- Naoko Ishibe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TELEPHONE RELAY DEVICE, METHOD OF RELAYING TELEPHONES, AND PROGRAM...
- Publication number 20120189114
- Publication date Jul 26, 2012
- NEC Corporation
- Akihisa Kurashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
- Publication number 20100111078
- Publication date May 6, 2010
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
- Publication number 20100111076
- Publication date May 6, 2010
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
- Publication number 20100111077
- Publication date May 6, 2010
- Dennis Duffy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC LOOP PROVISIONING
- Publication number 20090274147
- Publication date Nov 5, 2009
- Farhad Barzegar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Broadband communications
- Publication number 20070071189
- Publication date Mar 29, 2007
- Ian D Henning
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC LOOP PROVISIONING
- Publication number 20040131047
- Publication date Jul 8, 2004
- AT&T CORP.
- Farhad Barzegar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital subscriber line access system, a central DSL termination un...
- Publication number 20040090985
- Publication date May 13, 2004
- ALCATEL
- Heinz-Peter Burkle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for establishing communication links in an exchange in a swi...
- Publication number 20040057426
- Publication date Mar 25, 2004
- Wolfgang Ochem
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus for connecting digital subscriber lines to central office...
- Publication number 20020064221
- Publication date May 30, 2002
- Tet Hin Yeap
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010028708
- Publication date Oct 11, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010026611
- Publication date Oct 4, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024493
- Publication date Sep 27, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024494
- Publication date Sep 27, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024492
- Publication date Sep 27, 2001
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Arrangements providing connection between main exchange and sub-exchange or satellite

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Incoming call controlling device, incoming call controlling system,...

Exchange, call facilitation method, and call facilitation program

Incoming-call number notification apparatus, exchange, incoming-cal...

Nurse call system, nurse call conversion unit, nurse call connectio...

Inter-main-apparatus interface device, main-apparatus system includ...

Method and apparatus for enabling customer premises public branch e...

Telephone exchange system, communication apparatus, telephone incom...

Telephone exchange system, dial-in incoming call method thereof, an...

Method and apparatus for enabling customer premise public branch ex...

Lower main device and non-IP terminal housing method

Telephone relay device, method of relaying telephones, and program...

Method and apparatus for enabling customer premise public branch ex...

Method and apparatus for enabling customer premise public branch ex...

Electronic loop provisioning

Broadband communications

Electronic loop provisioning

Broadband loop carrier system

Method for establishing communication links in an exchange in a swi...

System and method for high-capacity electronic switching

Digital loop carrier system

Interface between channel units of multiple local exchange carriers

Digital key telephone system and extension terminal device thereof

SEPARATE STRUCTURE OF A DATAPATH LAYER AND A PHYSICAL LAYER WITHIN...

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Point-to-point-to-point calling

Method and device in telecommunications networks

Digital key telephone system and extension terminal device thereof

Method for linking subscribers to plural communication networks

Digital key telephone system and extension terminal device thereof

Patents Applicationslast 30 patents

COMMUNICATION MANAGEMENT DEVICE, COMMUNICATION MANAGEMENT METHOD, C...

INCOMING CALL CONTROLLING DEVICE, INCOMING CALL CONTROLLING SYSTEM,...

LOWER MAIN DEVICE AND NON-IP TERMINAL HOUSING METHOD

METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISES PUBLIC BRANCH E...

TELEPHONE EXCHANGE SYSTEM, DIAL-IN INCOMING CALL METHOD THEREOF, AN...

TELEPHONE EXCHANGE SYSTEM, COMMUNICATION APPARATUS, TELEPHONE INCOM...

TELEPHONE RELAY DEVICE, METHOD OF RELAYING TELEPHONES, AND PROGRAM...

METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...

METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...

METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...

ELECTRONIC LOOP PROVISIONING

Broadband communications

ELECTRONIC LOOP PROVISIONING

Digital subscriber line access system, a central DSL termination un...

Method for establishing communication links in an exchange in a swi...

Apparatus for connecting digital subscriber lines to central office...

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof