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Method and apparatus for link state determination in voice over frame-relay
A method and apparatus for link state determination in voice over frame-relay networks. In one embodiment, the present invention includes a method for...
Generation of synchronous transport signal data used for network protection
Each node (130) of a SONET bidirectional line switch ring (BLSR)(120) generates a squelch table. Squelch table generation does not require a separate computer...
Backup CRF VLAN
A backup CRF VLAN arrangement provides an alternate, redundant path for traffic between undistributed Concentrator Relay Functions (CRFs) located on separate...
Optimal filtering and upconversion in OFDM systems
Systems and methods for converting a baseband OFDM signal to an IF signal while minimizing lengthening of the impulse response duration experienced by the OFDM...
Efficient request access for OFDM systems
Systems and methods for efficient multiplexing of multiple access requests from disparate sources within a single OFDM burst. Each of multiple subscriber units...
Interleaved lumped raman amplifier structure based on highly nonlinear
fibers for densely spaced WDM channels
A modular interleaved Raman amplifier structure is exploited to reap the advantages provided by the high Raman gain coefficient and small effective area of...
Termination board for mounting on circuit board
Terminating resistances are provided to at least some pins of an ASIC or other multi-pin component mounted on a surface of a circuit board, by positioning a...
Flex circuit cabling wallet
An apparatus and method for supporting and protecting flex circuits are provided. A flex circuit cabling wallet has a first cover, a second cover, and a fold...
Decoding data from multiple sources
Systems and methods for sharing a single decoder among data streams originating with multiple sources. Error correction coding techniques are modified to...
Remote system administration and seamless service integration of a data
communication network management system
A method for providing remote management and maintenance of a node or service within a data communications network that is activated by the data communications...
System for managing cluster of network switches using IP address for
commander switch and redirecting a...
A group of network devices, such as Ethernet switches, are logically configured as a single cluster, with one commander device and one or more expansion devices....
Method and system for pausing a session with an interactive voice response
A system establishes a session with a voice response unit. The system receives a pause signal and pauses the session, and receives a resume signal and resumes...
Modem pass through for remote testing
A lab network access server is disclosed in accordance with an embodiment of the present invention. The lab network access server is coupled to a customer...
Accumulating and distributing flow control information via update messages
and piggybacked flow control...
Methods and apparatus are disclosed for accumulating and distributing flow control information via update messages and piggybacked flow control information in...
Differential OFDM using multiple receiver antennas
Systems and methods for optimally receiving differential encoded OFDM signals via multiple antennas. These techniques may exploit spatial diversity without...
System and method for determining program complexity
A system and method for determining complexity of a computer subroutine having a plurality of statements, during development of the subroutine is disclosed. The...
Method and apparatus for identifying network data traffic flows and for
applying quality of service treatments...
A system within a computer network identifies specific traffic flows originating from a given network entity and requests and applies appropriate policy rules or...
Method and apparatus for organizing, storing and evaluating access control
The invention relates to a method and apparatus for efficiently organizing, storing and evaluating access control lists (ACLs) for use by an intermediate network...
Devices, softwares and methods for selectively limiting the duration of an
individual modem-on-hold session
Devices, softwares and methods selectively limit a duration of an individual modem-on hold session. A network device receives and holds data for an...
System and method for communicating data among a plurality of digital
A system for communicating data among digital signal processors (DSPs) includes DSPs and a shift register. Each DSP includes a transmit node that communicates...
Optimizing queuing of voice packet flows in a network
A system and method are disclosed for increasing the efficiency with which data is transmitted over a network link. Voice packets are encoded to include header...
Network address translation using a forwarding agent
A system and method are disclosed for specifying network address translation for a set of packets. A first set of instructions is sent to a forwarding agent...
Feature transparency in a telecommunications network
An auxiliary communication network is introduced into a virtual private network for passing signaling messages that present features not supported by the public,...
System, apparatus and method for reducing fax transmission status outcalls
from a FAX-to-SMTP gateway
A communication system for transmission of facsimile (fax) information using an email message from a sending fax device used by a sending fax user to a receiving...
Heirarchical GUI representation for web based network management
An apparatus for maintaining networking hardware. One embodiment comprises a graphical user interface having a maintenance menu and a resource tree in an...
System and method for recovering and restoring lost data in a N-channel
coherent data transmission system
A method and apparatus for use where an incoming high speed data stream is first divided into N lower bandwidth channels and is then transmitted through the...
Power connection structure
A multi-layer printed circuit board (PCB) has a plated through hole for receiving a pin of a component. The plated through hole passes through all layers of the...
Copropagating Raman pump unit to suppress four-wave mixing crosstalk
between pump modes and WDM signals
Four-wave mixing crosstalk between co-propagating Raman amplification pump sources and WDM channels is suppressed. Therefore, co-propagating pumping may be...
Method for providing single step log-on access to a differentiated computer
A method for providing single step log-on access for a subscriber to a computer network. The computer network is differentiated into public and private areas....
Scaleable route redistribution mechanism
A method of distributing route information is described. The method includes maintaining a number of entries, indicating that at least one of the entries,...
Method and apparatus for automatic routing of circuit switched data
connections based upon stored behavioral...
A method and apparatus for automatic routing of multi-link circuit switched connections are shown. A routing processor monitors the behavioral characteristics of...
Option request protocol
An option request protocol allows dynamic negotiation of options between a host computer and a control unit of a computer network. The protocol is manifested as...
Methods and apparatus for referencing and processing audio information
Mechanisms and techniques are provided which allow a server computer system, such as a web server, to generate information, such as a web page, which includes an...
Check for pending e-mail using caller ID and selective answer ring
An Internet Access server includes a caller-ID map. The caller-ID map stores a list of caller-IDs associated with the ISP with corresponding user identification...
Method and apparatus for tracing a virtual connection
A method and apparatus for tracing a virtual circuit. A request message is received from a trace originating node. The request message includes a trace transit...
Method and apparatus for implementing a quality of service policy in a data
A content addressable memory (CAM or L3 Table) contains flow information for each active flow of packets passing through a given node of a data communications...
Circuit card with potting containment fence apparatus
A fluid containment fence apparatus provides a border around the perimeter of an area to be potted on one or both sides of a circuit board. First, or first and...
Method and apparatus for assisting communication of information between two
A method and apparatus assists communication between a writer of a shared file and the reader of the shared file without requiring the use of a shared file. When...
Enhanced network services using a subnetwork of communicating processors
A method and system for providing enhanced services for a network. The enhanced services use information about the network which is available to a subnet of...
Receiver transponder for protected networks
A receiver transponder that is implemented in an optical add/drop multiplexer (OADM) is disclosed. The OADM is used in short haul type networks and receives...
Display and key array cover for a wireless handset
Key array for a wireless handset
System and method for determining the transmit power of a communication
device operating on digital subscriber...
A system for determining the transmit power of a communication device operating on a twisted pair subscriber line includes a communication server coupled to a...
Dial plan mapper
A dial string is received from a session application that interfaces with a packet-based or circuit-switched system such as VoIP, PSTN, PBX, etc. Regular...
Hardware TOS remapping based on source autonomous system identifier
A rapid method and apparatus for remapping the type of service (TOS) and source address information from an incoming communications packet according to the...
Apparatus and method for cluster network device discovery
A group of network devices, such as Ethernet switches, are logically configured as a single cluster, with one commander device and one or more member devices....
Mobile IP mobile router
Methods and apparatus for implementing a Mobile IP mobile router are provided. In accordance with one aspect, the Home Agent receives a registration request...
Automatic generation of OAM cells for connection continuity detection
An asynchronous transfer mode (ATM) switch is configured to automatically generate Operations, Administration and Management (OAM) cells for a loopback test at a...
Symmetrical codec selection in an asymmetrical codec environment
A codec selector, and a corresponding method for establishing media channels between a local endpoint and a remote endpoint, are disclosed. The codec selector...