Abstract: A system whereby subscribers are provided with a universal resource locator (URL), that uniquely identifies, e.g., a web site maintained by the calling party. In a preferred embodiment, when the telephone call-reaches the subscriber's handset, a special character, e.g., an “*” is added to the display, e.g., at the end of the calling party's telephone number to let the subscriber know that additional information is available. The subscriber can then obtain detailed information about the calling party by, e.g., pressing a special “send” button on the handset, using a softkey or entering a special code. This prompts the subscriber's handset to send a communication over the internet to a database. The database maintains a table associating calling parties' numbers with URLs. The URL database then links the subscriber's telephone to a website maintained by the calling party.

Abstract: The disclosed network includes two rings, wherein a first ring transmits data in a clockwise direction, and the other ring transmits data in a counterclockwise direction. The traffic is removed from the ring by the destination node. During normal operations (i.e., all spans operational), data between nodes flows on the ring that would provide the minimum number of hops to the destination node. Thus, both rings are fully utilized during normal operations. The nodes periodically test the bit error rate of the links (or the error rate is constantly calculated) to detect a fault in one of the links. The detection of such a fault sends a broadcast signal to all nodes to reconfigure a routing table within the node so as to identify the optimum routing of source traffic to the destination node after the fault.

Abstract: The invention relates to a data transmission method between a network part of a General Packet Radio Service and a subscriber terminal. In the method an RLC/MAC (Radio Link Control/Medium Access Control) protocol layer and an LLC (Logical Link Control) protocol layer employing the services of the RLC/MAC protocol layer are used as data link layers. In data transmission an LLC frame of the LLC layer is placed in an RLC data block of the RLC/MAC layer. In accordance with the invention more than two LLC frames are placed in one RLC data block. According to prior art one RLC data block may comprise two different LLC frames at the most. The method is, for example, implemented in such a manner that when the RLC data block includes an RLC header field and an RLC data field then the RLC data block includes a mechanism accurately indicating the LLC frame length in each RLC data block and information about whether another LLC frame will follow said LLC frame or not.

Abstract: Procedure for determining register recall filtering time in a telecommunication system in conjunction with a V5 interface in different national mappings.

Abstract: A method and apparatus for generic support of frame relay services in a communications network is presented. This is accomplished by defining a bit field that indicates whether or not particular functions or services (including frame relay services) are supported by a particular node or other network component. The bit field for each component within the communications network is communicated to the network manager, which stores the bit fields for each component within a database. The database is then utilized to perform network management functions, as it informs the network manager whether a particular service/feature is available on the network component to which the bit field corresponds.

Abstract: An image transmission system in which when each of a plurality of image signals is transformed into compressed image data compressed at an image compressing portion, the image data are assembled to cells at a cell assembly portion, and the cells from the cell assembly portion are switched at a switching portion, a band controller controls the cell assembly portion so that a band of a transmission line has a value lower than a total band required for a simultaneous transmission of each of the image data. Also, a network controller for controlling band controllers or compression rate controllers at each of communication nodes on a network is provided. Moreover, a sensor which detects a change of an event to control the band controller or the compression rate controller is provided.

Abstract: A network communication system is provided for communicating a wired subnet and a wireless subnet to solve the handover problems occurred in roaming. The system includes an IAPP manager program at a user level of the access point for communicating with a kernel-level device driver using system calls to perform an announce procedure and a handover procedure. A wireless LAN card driver with a packet filter is implemented for sending signals to the IAPP manager program to perform the handover procedure upon receiving a reassociation request packet from a mobile host. A wired LAN card driver is implemented for acting as an interface of the wired subnet. And a bridge program with a packet filter is implemented to increase the bandwidth efficiency.

Abstract: Counters are implemented within a bridge device so that adequate forwarding and transmission statistics can be monitored. The counting of frame discards as a result of ingress and egress rules implemented within the bridge are utilized within the IEEE 802.IQ VLAN bridge model to calculate the number of frames forwarded and the number of frames transmitted.

Abstract: The frame of data that is decoded is one of a set of frames that represent a packet of information words, and that additionally represent coded control words preceding and following the packet. The frames each include a master transition and a payload field. The payload field either is composed exclusively of ones of the information words, or includes a TYPE word that defines the structure of the payload field. The master transition is in a first state when the payload field is composed exclusively of ones of the information words, and is otherwise in a second state. In the method, a determination is made of whether the master transition is in the first state. When the master transition is in the first state, the payload field is adopted as a block of received data. When the master transition is not in the first state, the TYPE word is extracted from the payload field, the payload field is expanded in response to the TYPE word, and the payload field, after expansion, is adopted as a block of received data.

Abstract: A method for verifying the integrity of data payloads of ATM cells passing through a switching device involves computing a payload integrity verification code for the payload portion of an ATM cell. The payload integrity verification code may be generated according to any error detection or error correction scheme. Preferably, the payload integrity verification code is stored in a portion of the standard ATM cell header which is not used while the cell is passing through the switching device. Preferably the payload integrity verification code is stored in all, or a portion of, the virtual path identifier or virtual connection identifier fields. The invention allows for the immediate identification of cells having corrupted payload data. Different actions may be taken on the detection of errors in the ATM cell header and ATM cell payloads respectively.

Abstract: The invention relates to a method of synchronizing a reference clock of a first ground station and a local clock of a remote system, in particular a satellite. It includes: a) acquisition in a first loop of synchronization between reference bursts received by the remote system and generated bursts synchronized with the local clock, b) detection of the recognition word of the reference bursts received by the first remote system and generation of a time window containing N pulses of the reference clock, c) acquisition of the average phase of said pulses and comparison with the phase of the local clock, and d) in a second loop, synchronization of the phase of the local clock with said average phase. The method can be reiterated to synchronize a second ground station with the first one via the remote system.

Abstract: For establishing a parent-child relationship between adjacent network nodes interconnected by a transmission medium, a handshaking circuit comprises a state detector for monitoring the transmission medium to detect predetermined first and second states and a contention that occurs when the predetermined first states are simultaneously present. A state machine asserts the first state for initiating a handshaking process and relinquishes this state when a contention is detected. A receive count value is continuously incremented from the instant the contention is detected to the instant the transmission medium changes to an idle state. A transmit count value is continuously incremented from the instant the first state is detected to the instant the contention is detected. When the transmit count value is greater than the receive count value, the state machine asserts the first state again and when the transmit count value is smaller than the receive count value, it asserts the second state.

Abstract: The known signal that is transmission data for the pilot carrier is output to multiplier 103 to be subjected to amplitude adjustment (gain control) using a predetermined coefficient. The coefficient is set as appropriate in the range that makes an amplitude of the known signal larger than the amplitude of a message signal in consideration of, for example, error rate deterioration and increment of peak power in the entire transmission power. In addition, since the number of pilot carriers is small as compared to the number of all carriers, the increment of the gain of the pilot carrier does not generally have a large effect on the increment of the peak power.

Abstract: A method and system for use in data communications. The method and system substantially ensure that actual data transmission per unit time from at least one cross-point buffer switch ingress to at least one cross-point buffer switch egress substantially satisfies a designated target amount of actual data transmission per unit time.

Abstract: A method and system for updating routes in a route table on a personal computer operatively connected to at least one peripheral device. The method includes the steps of determining whether a first Device Internet Protocol address in a maintenance list is communicating with the client computer, creating a NIC IP list for all Network Interface Card Internet Protocol addresses bound to a Device Internet Protocol address on the client computer when the first Device Internet Protocol address is not communicating with the client computer, and adding a route table entry including the first Device Internet Protocol Address and an Network Interface Card Internet Protocol address from the NIC IP list to the route table.

Abstract: Updating of routers is achieved by insuring that the scheduling of router updates is such that a zone of turbulence that occurs where the updating takes place does not prevent reaching any router that may be in need of updating. For IP routers that have a task scheduling capability, this is achieved by estimating the time for communicating update information to all routers that need to be updated, adding that estimate to time of day, and transmitting the update specifications. In arrangements where routers do not have a task scheduling capability, updating is sequenced. One embodiment creates a set of traceroute trees that cover the nodes to be updated, and leaf nodes of the trees are taken up at random, placed in an ordered list and deleted from the trees. Another embodiment is more tree centric, in that once a starting node is identified (and its associated tree), all of its nodes are considered before progressing to another tree.

Abstract: A variable rate subscriber bus is adaptable to carry communications traffic in the forms of DS0, T1 or DS1 formats between a channel bank and a channel card at any one of a plurality of predetermined data rates. The data rate for the variable rate subscriber bus is selected according to the type and capacity of the channel card. The variable rate subscriber bus is capable of supporting high data rate traffic for high density channel cards while maintaining compatibility with conventional low density channel cards.

Abstract: A communication system is provided that includes a plurality of remote terminal units (RTUs) that communicate with a server via a network. The network provides communication paths to the RTUs via both a sessionless protocol and a switched connection protocol. Generally, the RTUs communicate via the network using the sessionless protocol. The network also includes a server. The RTUs share at least one account identifier that is coordinated by the server. Short messages are sent via the sessionless protocol. Longer messages are sent via the switched connection protocol using a shared account identifier. A corresponding method of operating the network is also provided. The use of a shared account identifier avoids the requirement of obtaining access accounts to the switched connection protocol for each of the RTUs, and is especially efficient and economical when the need to communicate longer messages is infrequent, but where each of a large number of RTUs require this capability.

Abstract: A system and method for maintaining reliable in-order event distribution using multicast are described. A trigger event is sensed and a multicast payload containing a plurality of queued events and a packet sequence number in response to the trigger event is created. Further, a current multicast packet is transmitted to at least one receiving device, the current multicast packet containing the multicast payload. The multicast packet is received from the transmitting device and a transmission count of each of the plurality of queued events is examined. In addition, a plurality of current queued events of the plurality of queued events and a plurality of missed transmission queued events of the plurality of queued is processed.

Abstract: An Internet phone protocol including a physical hierarchy for providing a mechanic and functional units for connecting, maintaining and releasing between linking media; a device driver hierarchy for defining driving characteristics of each electric and mechanic unit of the physical hierarchy; a real time operating system (RTOS) programming hierarchy for controlling an overall system; a user datagram protocol (UDP)/Internet protocol (IP) hierarchy for defining characteristics for processing a packet stream in packet change; an interface hierarchy for receiving a user's intention to a system; a voice/real-time transport protocol (VOICE/RTP) hierarchy for linking a voice channel between Internet phones; and an independent multimedia office communication system protocol (referred to as MOCS protocol hereinafter) hierarchy for rendering Internet phones to store in exchange status information to each other for independent and direct linking, by which one Internet phone indenpendently and directly transfers its