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| Number | Title | Issue Date |
| 8170187 | Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery A system for (and a method of) selectively establishing communication with one of plural devices associated with a single telephone number during a disaster or disaster recovery period. In a preferred embodiment, the system includes two wireless connection units, ea... | 05/01/2012 |
| 8150007 | Fully redundant call recording A system provides redundant telephone call processing. A gateway receives a call and identifies a first server as having primary responsibility for servicing the call and a second server as having secondary responsibility for servicing the call. The gateway communic... | 04/03/2012 |
| 8059798 | System for VOIP based emergency stand alone service Method and apparatus for ad hoc cooperative routing in an IP network. Included is an emergency stand alone (ESA) system that provides a bypass to a failed TDM switch for multiple communication devices in communication with one or more TDM switches. One or more inter... | 11/15/2011 |
| 8045686 | System and method for providing a backup-restore solution for active-standby service management systems The preferred embodiments described herein include a system and method for providing a backup-restore solution for active-standby service management systems. In one embodiment, a telecommunication system is disclosed having first and second service management system... | 10/25/2011 |
| 7804943 | Management for a heterogeneous pool of processors for the assignment of additional load An exemplary method implements load management for large granularity processes on application processors, APs. First data associated with the primary processes running on each AP is periodically collected, where the first data is proportional to processor occupancy,... | 09/28/2010 |
| 7773734 | Method and apparatus for advancing a call setup signaling message A method and apparatus for enabling all network elements in a geographically diverse network to advance each call setup message that has not been processed successfully by these network elements to their identical backup network elements to attempt to advance and pr... | 08/10/2010 |
| 7627099 | System and method for providing a backup-restore solution for active-standby service management systems The preferred embodiments described herein include a system and method for providing a backup-restore solution for active-standby service management systems. In one embodiment, a telecommunication system is disclosed having first and second service management system... | 12/01/2009 |
| 7359368 | System and method for routing calls using dialing partitions A method of routing calls using dialing partitions includes receiving a call request at a first call manager from a first device coupled to a packet-based network. The call request includes a telephone number that is associated with a second device coupled to the pa... | 04/15/2008 |
| 7319747 | Method and system for combining an emergency standalone switching device with a switching system interface The present invention is a system and method of combining an emergency standalone switching device with a switching system interface used to bypass the common control and switch matrix of a class 5 digital switch. The emergency standalone switching device pro... | 01/15/2008 |
| 7289615 | Private branch exchange and private branch exchange control method A private branch exchange changes the load distribution according to the use condition by a main control unit and a sub-control unit. A line card comprises a first module group normally carrying out various operations in response to an instruction of the sub-control... | 10/30/2007 |
| 7257205 | Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery A system for (and a method of) selectively establishing communication with one of plural devices associated with a single telephone number during a disaster or disaster recovery period. In a preferred embodiment, the system includes two wireless connection units, ea... | 08/14/2007 |
| 7227927 | Scalable call processing node A scalable call processing node includes link interface modules capable of processing n calls per second and call server modules capable of processing m calls per second, n is variable relative to m by changing the relative numbers of call server and link interface ... | 06/05/2007 |
| 7145899 | System and method for providing shared line appearances in a distributed call routing network A method for routing calls in a packet-based network includes receiving a call request at a first call manager from a device that is coupled to the packet-based network. The call request includes a telephone number associated with a plurality of telephony devices th... | 12/05/2006 |
| 7142640 | Method and system of remotely restoring communication lines The disclosure relates generally to a system of restoring communication circuits. The system includes an automated circuit switchover system embedded within a telephone central office, a technician terminal for use by telephone network operations personnel, a test a... | 11/28/2006 |
| 7110520 | Method and system for directory assistance services A mobile telephone, or personal communication services subscriber who wishes directory assistance services is connected in the conventional manner to an operator who identifies a destination telephone number desired by the subscriber. As known in the prior art, the ... | 09/19/2006 |
| 6920320 | Method and apparatus for stable call preservation A method and apparatus for preserving call-state information on a wireless communication system is provided. The method includes periodically replicating stable call call-state information between a first and second processor via a network connection. The method als... | 07/19/2005 |
| 6831967 | Method for backing up call charge data of a telephone switching office A method for backing up call charge data, stored in a disk storage, of a telephone switching office, in which individual data blocks are read by the disk storage and transmitted, with write orders, to two sequential mass storages, for example magnetic tape storages,... | 12/14/2004 |
| 6826268 | Method for overload control in a telecommunications network and apparatus therefor A method of suppressing overload in a telecommunications network involves the second node (1) receiving a signal that calls it has sent to a target node are being rejected and (2) reducing the rate of calls it sends to the target node in response. The network... | 11/30/2004 |
| 6668053 | Process for generating recent change commands for various stored program telephone switches The system automatically generates electronic commands necessary to modify or provision different types of program control switches as may be included in a public switch telephone network. A data schema and organization of tables and data structures provi... | 12/23/2003 |
| 6522732 | System and method of preserving stable calls during a split mode operation of telecommunications equipment A computerized method of preserving stable calls during a split mode operation of telecommunications equipment includes the steps of sending a call block update message from a first side of the telecommunications equipment to a second side of the telecomm... | 02/18/2003 |
| 6393112 | System method for facilitating intelligent network call processing using a call context database System and method for facilitating intelligent network call processing using a centralized call context database. The system and method include and involve a call context database and an intelligent telecommunications network that is coupled to the call c... | 05/21/2002 |
| 6009430 | Method and system for provisioning databases in an advanced intelligent network A method of provisioning databases in a telecommunications system includes storing data for a telephony service in a plurality of redundant database nodes. An operation to be performed in the redundant database nodes is received and broadcast to the redun... | 12/28/1999 |
| 5960205 | Upgrading the control of switching systems In a telephone switching system, a method of performing a multiple release jump to a target program release for controlling the system. The system uses duplicate processors and disk file controllers. A new disk file is initialized with new program text an... | 09/28/1999 |
| 5848128 | Telecommunications call preservation in the presence of control failure This invention relates to methods and apparatus for continuing the processing of a telecommunications call in the presence of a failure of a call processor. A backup processor is designated for each call, and a file of signaling messages for that call is ... | 12/08/1998 |
| 4580011 | Distributed processing telephone switching system A telephone switching system and method eliminates the need for high speed computers by employing a master controller having its own microprocessor to coordinate and control a tone controller, a switch controller, and a coupler controller, each of which h... | 04/01/1986 |
| 4146929 | Input/output security system for data processing equipment Data processing equipment suitable for recording details of manually connected telephone calls has a plurality of operator stations with keyboards and VDU's connected in groups to operator's control units which respond to keyed instructions to obtain data... | 03/27/1979 |
