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VLAN trunking over ATM PVCs (VTAP)
Virtual Local Area Network (VLAN) trunking over Asychronous Transfer Mode (ATM) Permanent Virtual Circuits (PVC), defined as VTAP, allows for aggregation of...
Method and apparatus for pipeline sorting of ordered streams of data items
According to the invention, resequencers are used to sort one or more sets of a plurality of streams of ordered data items. In certain implementations, these...
Method and apparatus for reducing OSPF flooding
A method and apparatus for reducing OSPF flooding is provided for a router device. The flood reduction invention enables hello protocol communication while...
System for interference cancellation
A spatial processor that exploits signals that arrive via multiple outputs of a communication channel to provide soft decision values useful to a trellis or...
Method and apparatus for using fire decoder to correct burst errors in a
real-time communications system
Error bursts are detected and corrected in a communication system using shortened cyclic codes, such as shortened Fire codes. Data is loaded into a first error...
Multilink point-to-point protocol network access server channel allocation
method and apparatus
In a multilink point-to-point protocol (PPP) network access server, a method is provided in one aspect of the invention allocating ports among various users that...
Virtual dial-up protocol for network communication
A layer two forwarding protocol (L2F) provides virtual direct dial-up service into private networks through public internet service providers. An authorized...
Customer care control over voice application state
An application server includes an application runtime environment configured for receiving a first HTTP request having a session identifier that specifies a...
Network management using abstract device descriptions
A method and apparatus are disclosed for creating and storing information that defines one or more network devices for use with a network management system. In...
Method and apparatus to allow users and representatives to conduct
simultaneous voice and joint browsing sessions
Methods and apparatus are described whereby Internet content is coordinated with audio communications, such that two or more parties can view the same media...
Method and apparatus for communicating a subscriber message
A communication system includes a radio access network (RAN) and a core packet network that allows registration of mobile devices. A temporary mobile device...
Method and apparatus for concealing mute in an IP-based telephony system
A method and apparatus for improving the mute function of an IP telephone is disclosed, where the method comprises determining, by a transmitting IP telephone,...
Call center with location queuing and dispatching
A system and method to queue, dispatch, send announcements to incoming calls to an emergency response center (ERC) is disclosed. The present invention employs...
TDM format optimized for multiple high speed links to a communications
A highly interleaved Time Division Multiplexing (TDM) format allows for high data density transfer for a given port at a communications controller. The port is...
Dynamic codec speed selection and bandwidth preallocation in a voice packet
network method and apparatus
Dynamic compressor/decompressor (codec) speed selection includes monitoring a call in a telephone system to determine the type of codec being used thereon and to...
Method and apparatus for multicast call signaling in packet network
Multicasting and telephony call signaling are combined to perform multicast call signaling. Several IP endpoints in a packetized network subscribe to a multicast...
Methods and apparatus for communicating messages in a computer display
The invention is directed to techniques for communicating messages between windows or frames in a computer display. A computer system suited for use with the...
Method and apparatus for uninterrupted packet transfer using replication
over disjoint paths
A method of operating a fault tolerant connection in a network is described. The network includes a number of network elements and a number of links. Each of the...
Method and apparatus for selecting a first clock and second clock for first
and second devices respectively...
A method and apparatus for synchronizing clocks is provided that is flexible and compensates for process, voltage, and temperature (PVT) variations and other...
Policy engine which supports application specific plug-ins for enforcing
policies in a feedback-based, adaptive...
A feedback-based adaptive network is described wherein at least a portion of the network elements report operating information relating to network conditions to...
Network management systems that receive cross connect and/or other circuit
information from network elements
A network management systems (NMS) queries network elements (NEs) and receives information on cross connects set up at the NEs and other circuit information....
System and method for transcoding multiple channels of compressed video
streams using a self-contained data unit
A system for transcoding multiple channels of compressed video streams using a self contained data unit such as an autonomous frame includes an autonomous frame...
Configurable channel associated signaling ("CAS") line signaling using
plain text strings
An apparatus for configuring CAS line signaling using plain text strings includes at least one configurable CAS plain text line signal template having...
UTOPIA 2--UTOPIA 3 translator
A system for an interface between a physical layer and a communication network. The system comprises a UTOPIA 3 physical layer receiver (23) operable to receive...
Load sharing and redundancy scheme
Methods and apparatus for providing a device for forwarding packets in a network are disclosed. A first router and a second router having a shared set of...
Multihop nested tunnel restoration
A network communications tunnel is established by assigning a unique label to each communications link between adjacent nodes in a pre-defined network path. A...
Method and apparatus for a graceful controller switchover
A method and apparatus for switching from a primary network controller to a secondary network controller. A switchover request is received. Messages accepted by...
Method and apparatus for phase aligning two clock signals utilizing a
programmable phase adjustment circuit
An apparatus, method, communications device and computer readable medium for phase aligning two clocks and providing a graceful switch between active and standby...
Validating connections to a network system
A mechanism for authenticating multiple connections to a network server is disclosed. A client establishes a first connection to the server. In establishing the...
System and method for suppressing side-effect alarms in heterogenoeus
integrated wide area data and...
A method and apparatus for suppressing side effect alarms in a network communication system, based on state change and the alarm reporting history of logical...
Methods and apparatus for providing shared access to an application
The system of the invention provides a collaboration adapter which can be integrated into a web server or a web/application server to allow multiple computer...
Method and apparatus for reducing the required size of sequence numbers
used in resequencing packets
In one implementation, a first set of packet switch sequence numbers is used for end-to-end resequencing of packets within a packet switch, and a second set of...
Crosspoint switch with independent schedulers
An apparatus is described comprising an ingress port and a plurality of switch planes where each of the switch planes has a dedicated scheduler and each of the...
Network availability monitor
A method and system for measuring availability of a high-availability network that includes interconnected routers and switches. One embodiment of the present...
System and method for maintaining a plurality of media conferences
A system for maintaining a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the...
Frequency synthesizer using a VCO having a controllable operating point,
and calibration and tuning thereof
A frequency synthesizer, a calibrator thereof, and an operating controller thereof are described. The synthesizer comprises a main charge pump that drives a...
Method and apparatus for enhancing periodic ranging for cable modems
Disclosed is a cable modem termination system (CMTS) capable of outputting periodic ranging opportunities. The CMTS includes an upstream receiver and demodulator...
Method and apparatus for identifying a data communications session
A method and apparatus for using a session identifier to identify a specific data communications session between an apparatus and an external apparatus is...
Handling packet fragments in a distributed network service environment
A system and method for providing a network service is described. A fragment criteria is sent from a service manager to a forwarding agent that instructs the...
Distributed network traffic load balancing technique implemented without
The technique of the present invention provides a solution to the problem of routing or redirecting a given client to a replica or proxy server which has a...
System and method for securing voice mail messages
A system is provided for securing voice mail messages. The system includes a packet network and a telephony device that is coupled to the packet network. The...
Method and apparatus for handling telephone calls
An electronic method and apparatus for handling telephone calls is described. The method includes storing in a memory a telephone number template. The template...
Universal protocol conversion
A scalable, programmable software based application run on a programmed general purpose digital computer is used for interconnecting a plurality of heterogeneous...
The invention uses a layer 2 switch (L2 switch), or bridge, to separate user's message traffic by use of Virtual Local Area Networks (VLANs) defined within the...
Search engine interface system and method
A search engine interface system comprising a header analyzer, which is coupled to a search engine interface adaptor that receives from header parser via a...
Method and apparatus for managing a subtended communication network
A subtended communication network includes a first node servicing a plurality of first subscribers and having a subtend module and a corresponding first...
Block mask ternary CAM
The invention provides a method and system for flexible matching of data in a CAM, that does not use the overhead of one mask bit for each matched value bit. The...
Router software upgrade employing redundant processors
Systems and methods for replacing software controlling active routers while minimizing impact on network operation are provided by virtue of one embodiment of...
Method and apparatus for automatically provisioning data circuits
The present invention discloses a method and apparatus for automatically provisioning data stitching circuits within a network element (NE). Data circuits are...
Dial-out link selection via static route redistribution
Dial-out route service is forwarded by a gateway to reduce congestion in a data communication network. The first gateway determines availability of it ports to...