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| Number | Title | Issue Date |
| 7778406 | E-911 managed call routing A method and system of local call detection and notification are provided for a communication device that communicates with an enterprise system via a secure digital voice connection and locally with the Public Switched telephone system (PSTN) via an analog line. A ... | 08/17/2010 |
| 7302054 | System and method for integrated telephony switching A telephony system includes a switch coupled to a call agent and a legacy application, and further coupled to resources, some controlled by the call agent and others controlled by the legacy application. The switch processes connection requests from the call agent a... | 11/27/2007 |
| 7269408 | Method and system of alerting callers to surcharges Method and system of alerting callers of surcharges associated with making phone calls. The method and system relating to calls made between affiliated and non-affiliated providers wherein the surcharges are fees incurred in service calls therebetween. The fees may ... | 09/11/2007 |
| 7206283 | High-performance network switch The present invention provides a high-performance network switch. A digital switch has a plurality of blades coupled to a switching fabric via serial pipes. Serial link technology is used in the switching fabric. Each blade outputs serial data streams with in-band c... | 04/17/2007 |
| 7206399 | Failsafe configuration for alternative network telephony A failsafe configuration for alternative network telephony is disclosed. An indication as to whether an alternative network telephony call processing system is available to process calls from an associated piece of telephone equipment is received automatically and t... | 04/17/2007 |
| 7203194 | Method and system for encoding wide striped cells A system and method for encoding wide striped cells that carry packets of data across stripes. The method encodes an initial block of a first wide striped cell is encoded with initial cell encoding information, and distributes initial bytes of packet data into avail... | 04/10/2007 |
| 7187687 | Pipeline method and system for switching packets A switching device comprising one or more processors coupled to a media access control (MAC) interface and a memory structure for switching packets rapidly between one or more source devices and one or more destination devices. Packets are pipelined through a series... | 03/06/2007 |
| 7177301 | Signal permuting A method of constructing a permuting network. A configuration for layers of a permuting network is selected based on a set of integer factors of N, the number of signals to be permuted, and on pre-selected types of switches. The permuting network is constructed in l... | 02/13/2007 |
| 7085363 | Methods, systems, and articles for providing a family telecommunication service A menu is provided in a first telephone call. The menu provides a plurality of destination options including a first destination option for a residence of a family, a second destination option for a first member of the family at a first location other than the resid... | 08/01/2006 |
| 7065200 | Method of detecting circular routing in No. 7 signaling A method of detecting circular routing in a No. 7 signaling network is provided which detects circular routing that occurs when operating the signaling network, thereby preventing congestion of links by circular routing and finding out any reasons for the link conge... | 06/20/2006 |
| 7065090 | Cross-bar switch supporting implicit multicast addressing A cross-bar switch includes a set of input ports and a set of sink ports in communication with the input ports. The input ports receive packets, which are snooped by the sink ports. The cross-bar switch also includes a set of port address tables. Each port address t... | 06/20/2006 |
| 7042998 | Call routing system and method with rule-modifying ability A method and system is provided wherein routing information is obtained from previously cached information or from a gatekeeper. An originating gateway in a network receives a request for a connection and determines whether pertinent routing information is cached. I... | 05/09/2006 |
| 7031450 | Call routing system and method A method and system is provided wherein routing information is obtained from previously cached information or from a gatekeeper. An originating gateway in a network receives a request for a connection and determines whether pertinent routing information is cached. I... | 04/18/2006 |
| 6980638 | Failsafe configuration for alternative network telephony A failsafe configuration for alternative network telephony is disclosed. An indication as to whether an alternative network telephony call processing system is available to process calls from an associated piece of telephone equipment is received automatically and t... | 12/27/2005 |
| 6975717 | Selective processing of calls using alternative network telephony A system and method are disclosed for selective processing of calls using alternative network telephony. Called party data is received indicating a destination to which a calling party using a local telephone equipment desires to place a call. It is determined trans... | 12/13/2005 |
| 6956858 | Network routing table and packet routing method A routing table circuit for a router has one or more input ports and output ports for message communication. In the routing table circuit, one or more routing table memories store a plurality of routing table arrays. The routing table arrays are arranged hierarchica... | 10/18/2005 |
| 6940851 | Scheduling the dispatch of cells in non-empty virtual output queues of multistage switches using a pipelined arbitration scheme A pipeline-based matching scheduling approach for input-buffered switches relaxes the timing constraint for arbitration with matching schemes, such as CRRD and CMSD. In the new approach, arbitration may operate in a pipelined manner. Each sub-scheduler is allowed to... | 09/06/2005 |
| 6892169 | System and method for automatically designing communications circuits A software interface used in designing communications circuits receives input from a user (20). In response, the software interface initiates accessing of a route plan (16) comprising a first route point group (38) associated with a first circui... | 05/10/2005 |
| 6885663 | Time/space switching component with multiple functionality A time/space switching component is provided with multiple functionality that includes a time switching unit, of a space switching unit of a data channel sequence correction unit and of a control unit. As a result of corresponding mode selection, the different funct... | 04/26/2005 |
| 6816585 | Method for routing in loaded telecommunication networks A method for routing of incoming prioritized telecommunication traffic in a telecommunication network by applying an algorithm of finding optimal path to an augmented graph built for said telecommunication network. The telecommunication network is represented as a n... | 11/09/2004 |
| 6766015 | Method and device for hunting for communication channel A method of hunting for a communication channel in a communication system where a plurality of communication lines each have a plurality of communication channels includes the steps of maintaining a record of current channel statuses of the communication channels wi... | 07/20/2004 |
| 6748070 | Method for allocating network resources Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resour... | 06/08/2004 |
| 6614904 | Apparatus and method for effecting a communication arrangement between switch arrays An apparatus is disclosed for effecting a communication arrangement of a plurality of communication circuits between first connection loci of a first switch array and second connection loci of a second switch array. The apparatus comprises: (a) a first co... | 09/02/2003 |
| 6611591 | System and method for integrated telephony switching A telephony system includes a switch coupled to a call agent and a legacy application, and further coupled to resources, some controlled by the call agent and others controlled by the legacy application. The switch processes connection requests from the c... | 08/26/2003 |
| 6567516 | Method and device for controlling affiliation of remote line-collection device with switch A method of controlling affiliation of a remote line-collection device with a plurality of switches connected via a network includes the steps of providing each switch with a backup-storage area in advance in addition to a normal storage area, and transfe... | 05/20/2003 |
| 6507648 | Method and apparatus for prioritizing voice and data in a circuit-switched network The invention is a novel method of processing incoming and outgoing call requests by a switching unit such as a KSU, PBX or PC server. Each established circuit and each call request is associated with a priority. For an outgoing call request, if an availa... | 01/14/2003 |
| 6411703 | Geographically distributed telephony Method and system are provided for efficient telephone number portability within a geographically dispersed telephony and the like switching system, wherein ported telephone numbers, when dialled and found non-existent at their number-inherent destination... | 06/25/2002 |
| 6282278 | Universal conference control manager A method and apparatus for automatically establishing an audio conference call where one of a number of audio conference call service providers must be selected. With this invention a resource broker receives requests from a number of users desiring to es... | 08/28/2001 |
| 6225888 | Authentication between communicating parties in a telecommunications network In known telecommunications systems using multiple access the terminal equipment assumes that the network element is genuine while the network element assumes that the terminal equipment is genuine. This allows false terminal equipment, a false network el... | 05/01/2001 |
| 6205557 | Redundant call processing A telecommunications network includes at least an active and a standby call server, the standby call server becoming active upon failure of the active call server. To facilitate rapid switch-over from the active to the standby call server and to prevent t... | 03/20/2001 |
| 6137876 | Network call trace A Network Call Trace (NCT) method and system enables a call path route to be traced in a telecommunications network. A Type of Digit (TOD) in the Generic Digits Parameter (GDP) for an Integrated Services Digital Network (ISDN) User Part (ISUP) command can... | 10/24/2000 |
| 6128378 | Method and apparatus for establishing interlata communication A system and method for processing electronic data and voice audio calls providing an interLATA (Local Access Transport Area) fast connect routing scheme that bypasses an interexchange carrier. An interLATA communication circuit is established between a f... | 10/03/2000 |
| 6044059 | Method and apparatus for minimizing contention losses in networks Contention losses are minimized in path searching, circuit-switched networks by adding intelligence to the last stage of the network. A count of number of bytes remaining to be transferred in each active message is maintained in real time for each output ... | 03/28/2000 |
| 6034956 | Method of simultaneously attempting parallel path connections in a multi-stage interconnection network The multi-stage interconnection network of the present invention includes the use of switches in the first stage that have parallel path seeking capabilities. With these switches, a directed flash-flood can be instigated from any one node wherein multiple... | 03/07/2000 |
| 5995618 | Method for redirecting traffic on a communications network for conservation of network resources A method of operating a switched communications network redirects certain types of messages away from the switch to free up switch resources for other messages, thereby decreasing the size of switch needed or delaying necessary switch size upgrading. Mess... | 11/30/1999 |
| 5974132 | Network architecture for routing of adjunct based services The present invention is a novel architecture design for adjunct based architectures. The architecture is built on two key principles; routing traffic based on geographic origin and routing based on customer group. In order to implement the geographic rou... | 10/26/1999 |
| 5892451 | Remote management of computing devices An enhanced desktop management interface within a computing device interfaces with a management information system. The enhanced desktop management interface includes a service layer which has a management interface and a component interface. A plurality ... | 04/06/1999 |
| 5870460 | System for least cost routing of data transactions in a telecommunications network A system allocates data links between a switch and a database for data transactions in a telecommunications network. The data links between the switch and the database carry the transaction data for providing routing, card verification, address translatio... | 02/09/1999 |
| 5852407 | Multistage interconnection network and parallel computer using the same A multistage interconnection network capable of performing highly reliable communications with less hardware. In the multistage interconnection network for interconnecting a plurality of nodes, the first and final stages each have switches two times as la... | 12/22/1998 |
| 5825301 | Cross connect apparatus with routed path protecting function In a cross connect apparatus, a switch section includes a plurality of switches and having n input terminals and m output terminals. A control section reads a current connection information indicative of a current connection state of the switch section in... | 10/20/1998 |
