Patents
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
05/2004
05/19/2004CN1498372A Pool-based resource management in data network
05/19/2004CN1498368A System, method and apparatus that employ virtual private networks to resist IPQoS denial of service attacks
05/19/2004CN1497931A System and method of copying and transmitting telephone talking
05/19/2004CN1497906A System and method for generating ringbace tone
05/19/2004CN1497905A Wide area network connecting device and method
05/19/2004CN1497903A Method and system for submitting control and monitoring function for telecommunication exchange area
05/18/2004US6738981 General access system
05/18/2004US6738824 Dial-out link selection via static route redistribution
05/18/2004US6738803 Proxy browser providing voice enabled web application audio control for telephony devices
05/18/2004US6738473 Call queuing
05/18/2004US6738470 Distributed gateway system for telephone communications
05/18/2004US6738469 Method and system for performing dialling of a telephone number supplied from a data store
05/18/2004US6738462 Unified communications automated personal name addressing
05/18/2004US6738390 SIP-H.323 gateway implementation to integrate SIP agents into the H.323 system
05/18/2004US6738357 Method and apparatus for multiple media digital communication system
05/18/2004US6738353 System and method for monitoring a packet network
05/18/2004CA2321697C Internet and telephony based messaging system
05/18/2004CA2157895C Interactive system for telephone and video communication including capabilities for remote monitoring
05/13/2004WO2004032456A3 Telephone set, multimedia terminal and server
05/13/2004WO2002051172A3 Method and apparatus for using the voice over internet protocol to handoff call connections
05/13/2004WO2002021747A3 Fail-over circuit for voice-enabled switch
05/13/2004US20040091089 Network telephone system and methods therefor
05/13/2004US20040090990 Translation of Identifiers of user Installation Terminal in a Packet Network
05/13/2004US20040090986 Concentrator for speech telephones and method of communication over LAN using same
05/13/2004US20040090952 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
05/13/2004DE10245547B3 Verfahren zum Aufbau einer VoIP-Telefonverbindung in einem gesicherten Netzwerk sowie Schaltungsanordnung A method for establishing a VoIP phone connection on a secure network and circuitry
05/12/2004EP1418742A1 Method and apparatus for evaluating the perceived quality of a voice signal received through a packet communication network
05/12/2004EP1418741A2 Method and apparatus for providing real-time communication center statistical data to a third-party application over a data network
05/12/2004EP1418729A2 Method and arrangement of communicating between a connection-oriented communications network and several VoIP network domains
05/12/2004EP1232640A4 Virtual pbx system
05/12/2004EP1099146A4 Methods and systems for accessing information from an information source
05/12/2004EP1060592A4 Teleconferencing method and apparatus with three-dimensional sound positioning
05/12/2004EP0962029B1 Communicating between stations
05/12/2004CN1496650A Method for operating communication system
05/12/2004CN1496642A Firewall with index to access rule
05/12/2004CN1496152A Method and system for using public or special network
05/12/2004CN1149868C User program disign system by using net page server for special small exchanger
05/12/2004CN1149790C Speech system using speech-carrying protocol of interconnected network protocol as basis
05/12/2004CN1149521C Method and apparatus for call distribution and override with priority
05/11/2004US6735621 Method and apparatus for messaging between disparate networks
05/11/2004US6735298 Call and data correspondence in a call-in center employing virtual restructuring for computer telephony integrated functionality
05/11/2004US6735297 System for maintaining PBX license key information in the event of a hardware failure reducing MTTR
05/11/2004US6735291 Virtual private switched telephone network
05/11/2004US6735288 Voice over IP voice mail system configured for placing an outgoing call and returning subscriber to mailbox after call completion
05/11/2004US6735287 Method and system for multimodal presence detection
05/11/2004US6735213 Processing of telephony samples
05/11/2004US6735208 LAN telephone system
05/11/2004US6735194 Digital private signaling system over internet protocol
05/11/2004US6735193 Method and apparatus for suppression of packets during silence periods in a packet telephony system
05/11/2004US6735175 Changing quality of service for voice over IP calls
05/06/2004WO2004039048A2 Status messaging using associated phone tags
05/06/2004WO2004039037A1 Two-way communication system, communication instrument, and communication control method
05/06/2004WO2004039029A1 A voice calling handling method using dynamic home agency technology at the whole ip framework
05/06/2004WO2004017584B1 Contact center architecture
05/06/2004WO2004017161A3 High availability voip subsystem
05/06/2004WO2004006616A3 Methods and apparatus for data communication
05/06/2004WO2004002116A3 Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery
05/06/2004WO2003098849A3 End user control of a teleconferencing network through a data network
05/06/2004US20040088424 SIP-based load balancing apparatus and method
05/06/2004US20040086102 Systems and methods for implementing call pickup in a SIP environment
05/06/2004US20040086100 Call completion via instant communications client
05/06/2004US20040086094 Method of providing personal event notification during call setup
05/06/2004US20040085985 Network device architecture and associated methods
05/06/2004US20040085361 Method and system for control system software
05/06/2004EP1416704A1 Talking apparatus adaptor; circuit connection method; circuit connection program; and recorded medium
05/06/2004EP1416696A1 Multimedia communication system using presence and priority information to determine communication media availability
05/06/2004EP1416670A1 IP-continuity test (IP-COT)
05/06/2004EP1415447A1 Method and apparatus for practicing ip telephony from an internet-capable radio
05/06/2004EP1415434A2 Emulation of phone extensions in a packet telephony distribution system
05/06/2004EP1415415A1 System and method for paging for voice over ip
05/06/2004EP1320998B1 Call looping prevention
05/06/2004EP1155535A4 Methods for implementing a talkgroup call with competing sources in a multicast ip network
05/05/2004CN1494303A Method of subscriber short number transfer in centralized business exchangers between switching offices
05/05/2004CN1494261A 多媒体通信系统 Multimedia Communication System
05/04/2004US6732177 Intelligent signaling scheme for computer-readable medium for H.323 mobility architecture
05/04/2004US6732156 System for routing electronic mails
05/04/2004US6732143 Method and system for integrating telephone voice communications into a client-server architecture
05/04/2004US6731744 Call processing system and service control point for handling calls to a call center
05/04/2004US6731743 AIN query redirection
05/04/2004US6731738 Call tones in communication networks
05/04/2004US6731735 URL-based dialing for voice telephone calls
05/04/2004US6731680 Method of changing from a first transmission path and/or transmission mode to a second transmission path and/or transmission mode
05/04/2004US6731642 Internet telephony using network address translation
05/04/2004US6731630 Flexible dial plan for a data network telephony system
05/04/2004US6731626 Telephony intelligence in a data packet network
05/04/2004US6731625 System, method and article of manufacture for a call back architecture in a hybrid network with support for internet telephony
05/04/2004US6731609 Telephony system for conducting multimedia telephonic conferences over a packet-based network
05/04/2004US6729854 Hydraulic pump manifold
04/2004
04/29/2004WO2004036888A1 Call routing system and method with rule modifying ability
04/29/2004WO2004036878A2 A system and method for efficient call management for directory assistance services
04/29/2004WO2004036830A1 Method for the automatic configuration of an ip telephony device and/or data, system and device implementing same
04/29/2004WO2004028066A3 Methods and systems for locating redundant telephony call processing hosts in geographically separate locations
04/29/2004US20040083493 Transmitting caller ID within a digital stream
04/29/2004US20040083282 Multimedia communication system
04/29/2004US20040083281 Method and apparatus for providing real-time communication center reporting data to third-party applications over a data network
04/29/2004US20040082320 Directory assistance method and apparatus
04/29/2004US20040081307 IP network system and H.323 gatekeeper
04/29/2004US20040081304 System and method of generating ring back tone
04/29/2004US20040081295 System and method for copying and transmitting telephony conversations
04/29/2004US20040081290 Method of providing 911 service to a private branch exchange