СПИСОК патентов США - подгруппа МПК16 H04M3/12


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№ п/п Номер патента Название патента

2016

19380162Graphical user interface and method for testing and visually representing telephony state
29338282Data processing in a digital subscriber line environment
39312983System and method for encoding telephone call data using varying codec algorithms
49232045Power management for IP PBX during power failure

2015

59137287High availability for voice enabled applications
69112968Providing alternative information over caller ID
79100857Method and system with improved disaster recovery capability
89092791Provisioning system for network resources

2009

97536010Exchange system, button telephone set and exchange

2005

106965561Terminal multiplexer structure
116940859Line termination equipment
126925053Method and apparatus for providing backup telecommunication service
136904013Error handling within power amplifier modules in wireless base-station
146891801Method of operating a data transmission system
156873685Digital subscriber line access and network testing multiplexer
166868060Circuit to provide backup telephone service for a multiple service access system using a twisted pair
176862349Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
186847705Apparatus for receiving voice signal and data and controlling method thereof

2004

196829351Apparatus and method of replacing telephony cards without down time
206813340Ringing SLIC fault handling
216788776Device and method for transferring unbundled network elements between local exchange carriers
226778489Subscriber terminating equipment
236757528Wireless backup telephone device and associated support system
246748552Stored program controlled switching system
256711702Method for dealing with peripheral units reported as defective in a communications system
266711614Method for carrying out real time backup communication of IP communication
276693874System and method for enabling fault tolerant H.323 systems
286691243Method and configuration for replacing a faulty module, particularly a faulty module within a digital exchange installation

2003

296668055Personalized assistance system and method
306657994Uninterrupted transfer of voice telephony service to derived voice technology
316611409Line module protection method and device utilizing said method
326608887Voice messaging system with ability to prevent hung calls
336594358Method and apparatus for replacing terminator in the backplane of a telecommunication switch
346584190Communications of telephony control signaling over data networks
356577730Modular digital telephone system and method including an universal telephony shelf
366577729Alarm display and method
376570982Digital clocking synchronizing mechanism
386570981Device and method for expanding legacy switches
396567518Method of field programmable gate array configuration
406567517Timing and switching array and method
416567513Drive and method for transferring unbundled network elements between local exchange carriers
426563922Arbitration mechanism
436549620Signal transfer point local number portability database audit system and method
446522732System and method of preserving stable calls during a split mode operation of telecommunications equipment
456512817Method and apparatus for polling telephony line status in an integrated services hub to reduce power consumption
466504915Multiple node messaging system wherein nodes have shared access to message stores of other nodes

2002

476493436System for correcting failures of music on transfer
486493321Systems and methods for providing communications through an alternate communication network
496489748Split backplane power system
506449270Dynamic re-routing
516449247System and method for maintaining call services for remote users in the event of a communication failure
526434221Digital subscriber line access and network testing multiplexer
536433988Method and apparatus for protection switching
546430150Communication node, restoration method and communication network
556424700Network based distributed PBX with connection loss survival features
566411802Wireless backup telephone device
576411515Amplifier
586404884Personalized assistance system and method
596400803Voice over digital subscriber line call redirection for lifeline service
606393104Enhanced life-line service for cable telephone customers
616393018Apparatus and methods enhancing call routing to and within call-centers
626356622System and apparatus for enhancing a network link
636356545Internet telephone system with dynamically varying codec
646347075Circuit to provide backup telephone service for a multiple service access system using a twisted pair
656337846Quantification of the quality of spare links in a telecommunications network

2001

666333981Shelf driver unit and method
676330328Modular digital telephone system and method including an universal telephony shelf
686330221Failure tolerant high density dial router
696327342E911 backup system for emergency 911 call answering systems
706314102Telecommunications system for providing both narrowband and broadband services to subscribers
716301351Device and method for transferring unbundled network elements between local exchange carriers
726289094External positivistic forward transfer in call routing systems
736275468Automatic timing adjustment for diverse routing of HFC systems
746269149System and method for enhancing a communication link
756263050Method and system for responding to security system breaches via a wireless network
766229985Communication apparatus
776205557Redundant call processing
786195345High capacity multimedia messaging exchanges
796185287Parallel data transfer and synchronization
806181788Uniform control of mixed platforms in telephony
816175563Parallel data transfer and synchronization in computer-simulated telephony
826169794Method and apparatus for synchronizing databases within intelligent network

2000

836167060Dynamic forward error correction algorithm for internet telephone
846137862Failover mechanism for computer/telephony integration monitoring server
856115355Reprovisioning monitor
866104801Escalatory reactive call routing
876084853Method of managing digital signal carrying facilities
886069948Procedure and system for ensuring emergency communication
896067346Method and system for providing redundancy in security systems served by a public switched telephone network
906064727Method and apparatus for maintaining uninterrupted telecommunications service
916064667Apparatus and methods enhancing call routing to and within call centers
926052061Circuit for switching a protection line between a common section and a channel section
936038289Redundant video alarm monitoring system
946031906Digital loop carrier system with automatic reprovisioning of dedicated lines
956011792Escalatory reactive call routing

1999

965999103Method and system for assigning spare transmission links to restoral routes
975991392Agent-initiated dynamic requeing
985991391Dynamic re-routing
995970065Uniform control of mixed platforms in telephony
1005956384Apparatus and method for automatically detecting defective lines in a cable and for automatically switching from the defective line to an extra line
1015953332Agent-initiated dynamic requeing
1025940497Statistically-predictive and agent-predictive call routing
1035940496Apparatus and methods enhancing call routing within and between call-centers
1045933474Telecommunications call preservation in the presence of control failure and high processing load
1055915011Statistically-predictive and agent-predictive call routing
1065912963Method and apparatus for providing an alternate telecommunications network
1075905792External positivistic forward transfer in call routing systems
1085901024Apparatus and method for circuit protection
1095862201Redundant alarm monitoring system
1105859895Auxiliary circuit switching for provisioning and/or repair in a fiber-to-the-curb system
1115857010Power-failure resistant communication system

1998

1125848128Telecommunications call preservation in the presence of control failure
1135719917Circuit for activating back-up lines

1997

1145619252Video telephone system and method for transmitting and receiving signals when there is a failure in the system
1155615246Method and apparatus for spurious signal detection and disconnection in a hybrid fiber/coax network architecture
1165596569Telecommunications switch with improved redundancy

1996

1175581612Private branch exchange system
1185559858Method and apparatus for delivering secured telephony service in a hydrid coaxial cable network
1195546455Method for accessing real-time data in an automatic call distribution system
1205530739Mail center management system
1215513312Method for system-prompted fault clearance of equipment in communcation systems

1995

1225469495Method and apparatus for delivering secured telephone service in hybrid coaxial cable network
1235428661Terminating call control method and system therefor in a digital switching unit used with subscriber groups

1994

1245367567Subscriber apparatus with ringer generator for sending ringer signal to subscriber line
1255329520High-speed facility protection in a digital telecommunications system
1265305325Method and a device for supervising and testing majority voting

1993

1275260986Group notification service and system
1285251299System for switching between processors in a multiprocessor system
1295222128Telecommunication disaster plan
1305214692Bypass for telephone switching system
1315200990Method of recovering speech path of pre-engaged call on restarting keyphone exchange system

1992

1325142571Digital telephone set having an emergency switching function and communication system having the same
1335086348System for connecting optical lines to a wideband telecommunications exchange

1991

1345050205Dial line monitor and control unit

1990

1354972452Digital bypass for telephone system
1364922489Circuit configuration for routine testing of the clock supply of a large number of units operated with the same clock

1989

1374878048Channel redundancy in a digital loop carrier system

1988

1384750136Communication system having automatic circuit board initialization capability

1986

1394594704Spare subscriber terminal device in a digital concentrator

1985

1404529842Automatic fault recovery arrangement

1984

1414451708Spare subscriber terminal apparatus
1424429184Mitigation of faults in a telephone exchange

1982

1434358639Permanent signal holding module

1978

1444109112Telephone isolation device

1977

1454048647Solid state disconnect device
1464017696Initializing circuit
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Дата формирования списка: 03.04.2017