Telecommunication system and method for operating the same

Telecommunication resource allocation system and method

Method and system for routing call in VoIP gateway

Using XML expressed primitives for platform and system-independent call modeling

Media gateway for provision of the pst/isdn services in next-generation networks

System and method for high capacity fault correlation

Predictive communication routing scheme using instant messaging preferences and/or settings for routing packet traffic for voice, video and other multimedia communications

Multiple subscriber videoconferencing system

Data network call routing

Automatic routing and information system for telephonic services

Method and apparatus for S.I.P./H.323 interworking

Telephone terminal and method for supplying power to the same

Arrangement for recovery of data by network nodes based on retrieval of encoded data distributed among the network nodes

System and method for broadcasting VoIP messages

Packet loss concealment based on statistical -gram predictive models for use in voice-over-IP speech transmission

Arrangement in a network node for secure storage and retrieval of encoded data distributed among multiple network nodes

Method and apparatus for administering configuration information in a private branch exchange switch

Method, network arrangement and apparatus for providing ISDN services in next generation packet based telecommunication networks

Integrated instant messaging, routing and telephone services billing system

Method and apparatus for validation and error resolution of configuration data in a private branch exchange switch

Telecommunications system, method of configuring same and operating a telecommunications system

System and method for a telecommunications network

System and method for controlling a telecom network

Method for controlling a connection in a packet-oriented communication network and arrangements for implementing said method

Method for providing services located in a connectionless data packet network to terminals of a connection oriented communications network

Method and system of providing differentiated services

Method and system for providing voice over internet protocol telephony products

Method and system for providing faster channel switching in a digital broadcast system

Communication apparatus having wired communication function and wireless communication function, and control method therefor

Methods and apparatus for transferring from a PSTN to a VOIP telephone network

Provision of telephony caller ID service via common instant communications clients

Provision of voice mail messaging indicator and voice mail access services via common instant communications clients

Managing routing path of voice over internet protocol (VoIP) system

Method for selectively providing access to voice and data networks by use of intelligent hardware

Voice over internet protocol (VoIP) telephone apparatus and communications systems for carrying VoIP traffic

Call hold/terminal portability in H.323/ISUP-BICC-SIP networks

Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center

Release link trunking for IP telephony

Apparatus and method for providing enhanced telecommunications services

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

Methods and systems for single number text messaging

Hybrid fiber twisted pair local loop network service architecture

Communication apparatus having an indicator that indicates a function service of a terminal apparatus

Method and apparatus for configuring a voice over IP client connection

Virtual environment software tool kit, common operating control method and computer program product for IP telephony

Distributed processing in conference call systems

Call control method for IP based telephone services

Telephone emergency response system and method

Methods and systems for a call log

Telephone communication system over a single telephone line

Network telephone system, main apparatus and telephone terminal of the same system

Calls spanning sub-domains with independent call linkage

Efficient communication through networks

Method for transmitting communication data in a communication system

Operating system for telecommunications

Strictly nonblocking multicast multi-stage networks

Telephone switching system accommodating a plurality of line packages

Arrangement for state monitoring for components in a packet switched communication network

Method and apparatus for network communication

Communication system for controlling a call portion

Network, server apparatus, IP corresponding terminal device, and speech-quality control method used in the same

Intelligent network and method for providing voice telephony over ATM and private address translation

Exchange for making communication among digital devices and analog devices

Methods and systems for digital data transmission

Methods and systems for participant sourcing indication in multi-party conferencing and for audio source discrimination

Server-less VoIP (voice over internet protocol) phone system

Wide area communication networking

Gateway device and method for managing connections on a gateway device

Call setup using voice over the internet protocol (VoIP)

Arrangement and method for controlling communication connections

Hybrid fiber twisted pair local loop network service architecture

System, method and apparatus for supporting E911 emergency services in a data communications network

Digital switching system with shared analog line

Methods and systems for directory information lookup

Methods and systems for remote cell establishment

Methods and systems for conference call buffering

Systems and methods for storing, delivering, and managing messages

Dynamic translation between data network-based protocol in a data-packet-network and interactive voice response functions of a telephony network

Method for sending multiple ephemeral terminations in a single service change message

System and method for voice based network management

Media convert service providing 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

Telephone communication system over a single telephone line

NxM crosspoint switch with band translation

Universal subscriber communicator module

Redundant sensor system with fault detection and mitigation