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MAC protocol employing multiple data rates
Method and apparatus for combining high data rate traffic and low data rate traffic on a common transmission medium while maximizing efficient use of available...
Resequencing packets at output ports without errors using packet timestamps
and timestamp floors
Methods and apparatus are disclosed for propagating timestamp floors throughout a packet switching system and using the timestamp floors received at a first...
Efficient method for packet switching on asynchronous transfer mode switch
An apparatus and method of using same for associating a tag with each packet in an ATM switch to eliminate the need for an OVC table, thus saving both egress...
Switched virtual circuit call processing/routing system
A method for operating a switched virtual circuit call processing/routing system, and a computer readable medium containing a call processing/routing program for...
Short circuited capacitor detection in AC coupled links using boundary scan
A boundary scan cell of a driving integrated circuit transmits an AC signal to a boundary scan cell of a receiving integrated circuit. Both integrated circuits...
Enhancing instruction execution using built-in macros
An instruction execution system using an "on-chip" ROM device to store one or more frequently used MACROs. A MACRO CALL instruction is used to redirect an...
Unified messaging system having short message service command processor
A unified communications system includes an SMS command processor configured for executing prescribed messaging operations based on reception of an SMS message...
Ringing SLIC fault handling
A line card or other telephone or communications interface provided with a ringing SLIC outputs relatively high voltage, such as in excess of about 90 volts,...
Network switch and method for data switching using a crossbar switch fabric
with output port groups operating...
A network switch and a method for data switching using a crossbar switch fabric with output port groups operating concurrently and independently that increases...
Shared spanning tree protocol
A shared spanning tree protocol (SSTP) creates a plurality of spanning trees (i.e., loop-free paths) which are shared among one or more virtual local area...
High-speed hardware implementation of red congestion control algorithm
A pipelined linecard architecture for receiving, modifying, switching, buffering, queuing and dequeuing packets for transmission in a communications network. The...
Method of queuing traffic to many destinations covering a wide range of
transmission speeds while minimizing...
A method and apparatus is described that provides queuing traffic to many destinations covering a wide range of communication interface speeds while minimizing...
Method and apparatus for configuring network devices
A method and apparatus retrieves and stores configuration information for network endpoint devices from other devices in the network, such as a switch adjacent...
Trunking alarm aggregation method and apparatus
In a telephony voice network having at least two connectable endpoint nodes with a trunk therebetween and a trunking alarm associated with each endpoint node, an...
Apparatus for cable routing management
An apparatus for managing the routing of a cable intercoupling two components in an installation is disclosed. The apparatus has a drawer for storing a portion...
Apparatus for and method of in-band clock compensation
A novel and useful apparatus for and method of in-band clock compensation for use in synchronous communication systems. The clock compensation mechanism is...
Instant messaging system using voice enabled web based application server
An application server receives an HTTP request for execution of an instant messaging application operation for a sending party. A selected extensible markup...
Method and apparatus for integrated wireless communications in private and
public network environments
A communication system formed by a private network that includes a private wireless network. The communication system includes a public wireless network using a...
Call management implemented using call routing engine
Call management techniques implemented using a call routing engine are disclosed. In the techniques of the present invention, a public network is centrally...
Method and apparatus for determining a next round robin element using a
Methods and apparatus are disclosed for determining a next round robin element requesting service using a cascaded approach. The cascaded approach could be...
System and method for signalling and call processing for private and hybrid
communications systems including...
A system and method for selectively establishing a user information path over an information transport network between first and second endpoints of first and...
Method and apparatus for learning and switching frames in a distributed
A technique enables learning and switching of frames between line cards that are interconnected by a switch fabric of a distributed network switch. The network...
System and method for controlling a telephony communication session
A telephony system includes a hybrid switch coupled to a packet network and a TDM network. The switch establishes a communication session using one of these...
Real-time positioning internet protocol method and apparatus
Internet nodes having global positioning receivers or the like are configured for communicating position information over the Internet, using an Internet...
Illuminable indicator testing apparatus
An apparatus for determining conditions of light indicators of an electronic device. The electronic device is coupled to a testing unit. The testing unit...
Method and template for developing device-centric network management
Techniques for developing device-centric network management applications include a template. A computer platform includes one or more processors and an operating...
Sequence control mechanism for enabling out of order context processing
A sequence control mechanism enables out-of-order processing of contexts by processors of a symmetric multiprocessor system having a plurality of processors...
Method for universal transport encapsulation for Internet Protocol network
A method for implementing a simple protocol, referred to as the universal transport interface (UTI), that can be used to create high speed Internet Protocol (IP)...
Memory allocation system and method
A method of allocating computer memory for a function in a computer program by a chunk manager operable to interface with an operating system of a computer...
Identifying link failures in a network
A mechanism for identifying link failures in a network is disclosed. To identifying link failures, a failed-link discovery mechanism receives information that...
System and method for re-routing communications based on wireless
communication link quality
A method for re-routing communications based on link quality includes establishing a first wireless communication link with a mobile station. The first wireless...
Connection verification for all-optical cross-connects by signal
Systems and methods for reliable and low cost optical connection verification. One application is verification and monitoring of optical cross-connect...
Method and apparatus for detecting a compatible phantom powered device
using common mode signaling
A method and an apparatus provide for determining whether a data terminal equipment (DTE) device represents a compatible device lacking an independent power...
Method and apparatus for improving echo cancellation in non-voip systems
A method and system for improving performance of an echo canceller with low additional complexity. Specifically, the present invention discloses using ...
Apparatus and method interface improvement for digital circuits
An apparatus comprising a parallel arrangement of circuits is described. Each circuit has a data net input. Each circuit has an indication signal net input...
System and method for maintaining a communication link
A method is provided for maintaining media streaming to a telephony device. The method includes establishing a media streaming link between a first telephony...
Efficient network multicast switching apparatus and methods
Efficient switched network multicasting techniques are provided. Incoming multicast packets are processed by a central forwarding engine (CFE) in a network...
Devices, software and methods for passing DTMF signals under voice
Devices, software and methods are provided for encoding DTMF signals for telephone connections between digital voice communication systems that use compression,...
Associating call appearance with data associated with call
Techniques for associating a call appearance with data associated with the call are provided. In the techniques of the present invention, the association of the...
Channel ordering for communication signals split for matrix switching
An apparatus and method for a synchronous optical network (SONET) includes ordering a plurality of signals of a first type in one or more line cards for transmit...
System and method for proxy signaling in a digital subscriber line access
A system and method for for proxy signaling in a digital subscriber line access multiplexer (DSLAM) is disclosed. The method comprises receiving an indication...
Method and apparatus for providing fast spanning tree re-starts
The invention relates to a method and apparatus for rapidly re-starting a spanning tree process at an intermediate device. A spanning tree entity running one or...
Method and apparatus for providing reserved rates to multiple flows on a
The disclosed system provides management of multiple flows at a network device interface such as a router interface to assure maximum usage of the bandwidth...
Network addressing scheme for reducing protocol overhead in an optical
A method for operating a network and a network architecture implementing the method are described. The method, in one embodiment, begins by grouping a plurality...
Network distributed fax device
An embodiment of the present invention includes a fax communication system for communicating fax information transmitted from a sending fax device to a fax...
Remote memory processor architecture
A remote memory processor architecture which provides an embedded processor with access to a large off-chip memory space via a HOST processor bus. An on-chip...
Apparatus and method for randomly assigning slots in a PCI backplane
A system and method for automatically assigning resources to a slave device inserted into a PCI backplane utilizes pairs of PCI GNT/REQ lines as bus lines of a...
Lumped raman amplifier for adaptive dispersion compensation
An adaptive dispersion compensation system that also achieves optical amplification by inducing Raman amplification effects in dispersion compensating fiber....
Method and apparatus for handling out of inverse multiplexing for
asynchronous transfer mode frame error conditions
Methods and apparatus are disclosed for handling transient anomalies in a communications or computer device or system, such an inverse multiplexing for ATM...
Method for traffic management, traffic prioritization, access control, and
packet forwarding in a datagram...
A method and apparatus for an enhanced datagram packet switched computer network is disclosed. The invention processes network datagram packets in network...