Method and arrangement for providing data plane redundancy

Method and system for providing to a second party, computer-network related information about a first party

Method and apparatus for fast reroute in a connection-oriented network

Systems and methods for seamless communications recovery and backup using networked communication devices

Communication system, control apparatus, communication apparatus, information-relaying method, and program

System and method for providing high reliability network

Method and system for providing to a second party, computer-network related information about a first party

Method and apparatus for fast reroute in a connection-oriented network

Circuit-switched and multimedia subsystem voice continuity with bearer path interruption

Transmission apparatus, failure recovery method, and network system

Trunking in a matrix

Systems and methods for seamless communications recovery and backup using networked communication devices

Systems and methods for seamless communications recovery and backup

Method and system for providing to a second party, computer-network related information about a first party

Method and system for providing to a second party, computer-network related information about a first party

System and method for providing high reliability network

Method and system for providing computer-network related information about a calling party

Redundancy in voice and data communications systems

Method and apparatus for fast reroute in a connection-oriented network

Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery

PON ring system, and method for realizing primary and backup link protection in PON

System and method for providing alternate routing in a network

Transmission apparatus

Technique for controlling establishment of a tandem-free transcoder operation

Redundancy in voice and data communications system

Method and apparatus for communicating information about a called party to a calling party

MULTIPLE-PROTECTION SYSTEM AND CONTROL METHOD IN A COMMUNICATION DEVICE

Method and apparatus for communicating information about a called party to a calling party

Control card circuit and method for selecting a synchronization source among a plurality of line card circuits

Mechanism for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems

Method and Device for Transmitting Signalling Data Between Peripheral Appliances of a Switching System

Method and apparatus for fast reroute in a connection-oriented network

Method for backup switching spatially separated switching systems

Slot interface access device, slot interface access method, and program therefor

Slot interface access device and slot interface access method

Data-transmission device and method for transmitting data with a reduced outage risk

Call Release in Communication Networks

Method and system for providing computer-network related information about a calling party

Method And Device For Realizing Primary-Backup Protective Of Low Order Cross Apparatus

Redundant network shared switch

Trunking in a matrix

Method and apparatus for communicating with one of plural devices associated with a single telephone number

Computer system, changeover-to-backup-system method, changeover-to-backup-system program, monitoring device, terminal device and backup system

Broadband telecommunications system

System and method for dynamically partitioning context servers

System and method for providing high reliability network

Method and apparatus for measurement of service disruption interval

Method and apparatus for expanding conference sizes

NETWORK DEVICE AND TIME SYNCHRONIZATION METHOD THEREOF

Method and system for implementing standby

Fabric manager failure detection

Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery

Transaction bundling for improved redundancy

Method for trunk line duplexing protection using a hardware watchdog

System and method for providing alternate routing in a network

Method for substitute switching of spatially separated switching systems

Method and apparatus for communicating information about a called party to a calling party

System and method for implementing service switching

Adapter unit and method

Remote control and control redundancy for distributed communication equipment

Method, system and apparatus for telecommunications control

Method and apparatus for providing called party information to a coverage point during survivable processor operation

Circuit-switched and multimedia subsystem voice continuity with bearer path interruption

COMMUNICATION SYSTEM OF CASCADED DEVICES WITH A BACKUP FUNCTION AND ACTIVE/STANDBY SWITCHOVER METHOD THEREOF

Wideband-narrowband telecommunication

Method for controlling highly accessible user access networks via a packet-based network service point

Method and apparatus for communicating with one of plural devices associated with a single telephone number

IP telephone system

Switch for integrated telecommunication networks

Method and apparatus for a remote signaling and call processing in a telecommunications network

Parallel channel architecture

Method of providing fault tolerance in a SIP based contact handling environment

Fault tolerant wireless communication systems and methods

Method and apparatus for line and path selection within SONET/SDH based networks

Telecommunication network and upgrading method therefore

Methods, systems, and computer program products for substitution of card-based telephony bearer channel switch modules in a manner that preserves stable calls

Failure tolerant high density dial router

Module firmware recovery

Time division multiplexed link connections between a switching matrix and a port in a network element

Telecommunication switch and operating method

Apparatus and method using proxy objects for application resource management in a communication network

Fast rerouting of traffic in a circuit switched mesh network

Apparatus and method for on-line upgrade using proxy objects in server nodes

Multi-chassis broadcast router having a common clock

System and method for managing voice communications between a telephone, a circuit switching network and/or a packet switching network

Communication system architecture and operating methods thereof

Switchover for broadband subscriber sessions

Method for restoring a connection in a telecommunication network

Partially interconnected networks

Method and system for providing computer-network related information about a calling party

Gateway device and method for managing connections on a gateway device

System and method for scalable and redundant COPS message routing in an IP multimedia subsystem

Providing protection switching via failure prediction

Telecommunications and data communications switching apparatus and method

System and method for providing alternate routing in a network

Method for making available features for alternative connections of primary connections

Method and arrangement for registering a terminal device on a communications node

Private branch exchange back-up system, back-up device for private branch exchange and failure coping method of network system

Redundant sensor system with fault detection and mitigation