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Class Information
Number: 379/9.05
Name: Telephonic communications > Diagnostic testing, malfunction indication, or electrical condition measurement > Of centralized switching system > Backup system
Description: Subject matter including the use of a spare equipment in case of failure or overload of the primary system.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8644455 High availability architecture for computer telephony interface driver Feb. 4, 2014
8620277 Method and device for backing up unread short message Dec. 31, 2013
8537974 System and method for facilitating emergency calling from a remote terminal Sep. 17, 2013
8428223 High availability architecture for computer telephony interface driver Apr. 23, 2013
8345840 Fast detection and reliable recovery on link and server failures in a dual link telephony server architecture Jan. 1, 2013
8243917 Method for indicating charge status of backup power supply and communication device employing the same Aug. 14, 2012
8223926 Resilient registration with a call manager Jul. 17, 2012
8045686 System and method for providing a backup-restore solution for active-standby service management systems Oct. 25, 2011
7983670 Wireless fallback for subscribers of wirelined networks Jul. 19, 2011
7773734 Method and apparatus for advancing a call setup signaling message Aug. 10, 2010
7702079 Adapter unit and method Apr. 20, 2010
7657018 Method and system for combining a conversion between time-division multiplexed digital signals and packetized digital signals with a switching system interface Feb. 2, 2010
7627099 System and method for providing a backup-restore solution for active-standby service management systems Dec. 1, 2009
7533174 Media gateway connection information recovery May. 12, 2009
7480266 Interference adaptation apparatus, systems, and methods Jan. 20, 2009
7440553 Apparatus and method for checkpointing a half-call model in redundant call application nodes Oct. 21, 2008
7382772 Communication system that shares protect links among multiple services including an internet service Jun. 3, 2008
7380164 Fail-over support for legacy voice mail systems in New World IP PBXs May. 27, 2008
7319747 Method and system for combining an emergency standalone switching device with a switching system interface Jan. 15, 2008
7257629 Method and apparatus for providing back-up capability in a communication system Aug. 14, 2007
7257205 Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery Aug. 14, 2007
7227927 Scalable call processing node Jun. 5, 2007
7142640 Method and system of remotely restoring communication lines Nov. 28, 2006
7050546 System and method for providing POTS services in DSL environment in event of failures May. 23, 2006
7032129 Fail-over support for legacy voice mail systems in New World IP PBXs Apr. 18, 2006
6956943 Method and apparatus for minimizing the telephony ring voltage power supply requirements of an integrated services hub Oct. 18, 2005
6847718 Remote power feed method and system Jan. 25, 2005
6792079 Remote access for cable locator system Sep. 14, 2004
6754204 Systems and methods for enhanced reliability in a communication system Jun. 22, 2004
6754320 Process, exchange, charge computer, charge billing computer and program modules for the processing of charge data for telecommunications services Jun. 22, 2004
6683951 Method and apparatus for providing service to VODSL derived telephone lines during power interruptions Jan. 27, 2004
6590961 Call protect systems with handoff redundancy Jul. 8, 2003
6584197 Power-limited remote termination converter with wetting current and emergency power operation for digital data transmission equipment Jun. 24, 2003
6577728 Method of providing continual network access for subscriber communication lines Jun. 10, 2003
6556660 Apparatus for providing redundant services path to customer premises equipment Apr. 29, 2003
6522732 System and method of preserving stable calls during a split mode operation of telecommunications equipment Feb. 18, 2003
6512817 Method and apparatus for polling telephony line status in an integrated services hub to reduce power consumption Jan. 28, 2003
6510204 Method and apparatus for providing an all digital loop with power-optimised mode Jan. 21, 2003
6400803 Voice over digital subscriber line call redirection for lifeline service Jun. 4, 2002
6356622 System and apparatus for enhancing a network link Mar. 12, 2002
6181677 Method and apparatus for detection and protection against data loss in a fractional T1/E1 communications environment Jan. 30, 2001
6137862 Failover mechanism for computer/telephony integration monitoring server Oct. 24, 2000
6115355 Reprovisioning monitor Sep. 5, 2000
6067030 Method and apparatus for providing network infrastructure information for a network control center May. 23, 2000
6038289 Redundant video alarm monitoring system Mar. 14, 2000
6031906 Digital loop carrier system with automatic reprovisioning of dedicated lines Feb. 29, 2000
6005920 Call center with fault resilient server-switch link Dec. 21, 1999
5999516 Multiplex communication equipment and communication test method thereof Dec. 7, 1999
5963634 Method for warming up a spare process in a replicated real-time system, in particular in a telephone exchange Oct. 5, 1999
5937029 Data logging system employing M[N +1] redundancy Aug. 10, 1999

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