Patents
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
09/2004
09/21/2004US6795444 System and method for providing wireless telephony over a packet-switched network
09/21/2004US6795440 Telecommunications tandem system for circuit-based traffic
09/21/2004US6795430 Service-related signaling between voice over internet protocol servers
09/21/2004US6795406 Methods and apparatus for enhancing wireless data network telephony, including quality of service monitoring and control
09/21/2004US6795395 Automation of call setup in IP telephony for tests and measurements
09/21/2004CA2292530C Method and system to provide objects to users of a telecommunications network
09/16/2004WO2004080037A2 System and method for facilitating ip telephony applications
09/16/2004WO2004049615A3 Methods and systems for automatic forwarding of communications to a preferred device
09/16/2004WO2004034679A3 Extension of a local area phohe system to a wide area network
09/16/2004US20040181583 Method of automatically connecting telephone to the internet via server for retrieving information
09/16/2004US20040180646 Authentication mechanism for telephony devices
09/16/2004US20040180621 Internet telephony network and methods for using the same
09/16/2004US20040179669 Virtual private communications network
09/16/2004US20040179668 Call completion services for hybrid public/private communications networks
09/16/2004US20040179658 Method and system for playing packetized announcements to telephone network end office switching systems from a centralized digital recorded announcement unit
09/16/2004US20040179515 Method and apparatus for providing a configurable quality of service threshold for voice over internet protocol
09/15/2004EP1458174A1 Wireless access system for Internet
09/15/2004EP1458173A1 Module for the treatment and transmission of digital data for public telephones
09/15/2004EP1458172A2 Telecommunications installation comprising a computer network connection
09/15/2004EP1457060A1 Communication network
09/15/2004EP1457059A1 Communication network
09/15/2004EP1457031A1 Method and system for automatic telephone call forwarding
09/15/2004EP1457029A1 Method for exchanging information by means of voice over a packet-oriented network
09/15/2004EP1457022A1 Interfacing of networks with different protocols via a media gateway controller
09/15/2004EP1456986A1 Communication systems and qsig communications methods
09/15/2004CN1529976A Automatic call-back method for packet orientated network
09/15/2004CN1529974A Enhancement of sound quality for computer telephony system
09/15/2004CN1167243C 话音因特网传输系统 Internet voice transmission system
09/15/2004CN1167232C Telecommunicatons system and call-processing method
09/14/2004US6792100 Method and apparatus for sharing point codes in a network
09/14/2004US6792098 Inter-network line level adjustment method and system
09/14/2004US6792097 System and method for implementing telephony call control via a set of components that communicate with each other via a unique telephony protocol
09/14/2004US6792092 Method and system for independent participant control of audio during multiparty communication sessions
09/14/2004US6791993 Virtual gateway system and method
09/14/2004US6791975 Call signature in a packet-based network
09/14/2004US6791974 Universal internet based telephony system that provides ubiquitous access for subscribers from any terminal device
09/14/2004US6791973 Internet telephone system
09/14/2004US6791972 Apparatus for interfacing a private branch exchange with an asynchronous transfer mode network and method thereof
09/14/2004US6791971 Method and apparatus for providing a communications service, for communication and for extending packet network functionality
09/14/2004US6791970 PC-to-phone for least cost routing with user preferences
09/14/2004CA2364898C Audio conferencing system streaming summed conference signal onto the internet
09/14/2004CA2343942C Signal converter, server, network information system, control methods thereof and telephone terminal
09/14/2004CA2341163C Method and apparatus for facilitating tiered collaboration
09/14/2004CA2269165C Sharing of voice-switched network and internet resources for intelligent session processing
09/14/2004CA2217617C Exchange for communication network
09/10/2004WO2004077798A2 Automatic control of simultaneous multimodality and controlled multimodality on thin wireless devices
09/10/2004WO2004077772A1 Data sink/data source data transmission device and data terminal device for a circuit-switched and packet-switched network
09/10/2004WO2004077766A1 Packet transmission device
09/10/2004WO2004077717A2 Time delay compensation device for the management of multimedia communications via an asynchronous network and a telephone network
09/09/2004US20040177348 Ain query redirection
09/09/2004US20040176128 System, mobile communications unit, and softswitch method and apparatus for establishing an Internet Protocol communication link
09/09/2004US20040176079 User controllable hold audio in a mobile communication device
09/09/2004US20040176077 Extending mobile phone networks
09/09/2004US20040174965 Apparatus and methods for telecommunication authentication
09/09/2004US20040174880 Internet telephone service
09/09/2004US20040174868 CTI control system
09/09/2004US20040174864 Communication between switched-circuit communication network and VoIP network domains
09/09/2004US20040174861 Method and system for packet and circuit telephone in a distributed telecommunications switching system
09/09/2004US20040174860 System and method for facilitating IP telephony applications
09/09/2004US20040174843 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174842 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174841 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174817 Methods and system for fast session establishment between equipment using H.324 and related telecommunications protocols
09/08/2004EP1455544A1 Method and system for packet and circuit telephony in a distributed telecommunications switching system
09/08/2004EP1455473A2 Clock Synchronisation over a Packet Network
09/08/2004EP1454497A2 Fail-over circuit for voice-enabled switch
09/08/2004EP1454475A1 Sending voicemail messages to multiple users
09/08/2004EP1454464A1 System for converting text data into speech output
09/08/2004EP1290829B1 Call handling device for connecting a wireless communications device to a communications network
09/08/2004EP1099213A4 Voice browser for interactive services and methods thereof
09/08/2004EP1070421B1 Method and system for supporting wireless communications within an internetwork
09/08/2004CN1527577A Terminal to terminal communication connection control method utilizing IP transmission network
09/08/2004CN1527576A Implementation of ISUP signalling process with degraded transmission channel number
09/08/2004CN1527573A Implementation of dialing device
09/08/2004CN1166242C Method for in-process telephone cell transfer between wireless telephone and wired telephone using short-range communication control link
09/08/2004CN1166238C Exchange of information in communication system
09/08/2004CN1166233C System and method for transmitting signal between No.7 signalling system
09/08/2004CN1166159C Telecommunications exchange system and method thereof
09/08/2004CN1166137C Nethod and apparatus for exchange of information in communication network
09/08/2004CN1166120C Method and equipment for establishing audio calling route and service user inquiry via Internet
09/07/2004US6788931 Directory assistance method and apparatus
09/07/2004US6788784 Circuit arrangement for signaling in telecommunications networks
09/07/2004US6788782 Method and apparatus for switching between multiple communication lines
09/07/2004US6788779 Method and apparatus for routing calls by proxy using virtual transaction servers in a multi-tennant communication center
09/07/2004US6788774 System and method of providing a per-use, auto-generation, personalized web page service
09/07/2004US6788769 Internet directory system and method using telephone number based addressing
09/07/2004US6788768 System and method for real-time, personalized, dynamic, interactive voice services for book-related information
09/07/2004US6788745 Circuit and method for active termination of a transmission line
09/07/2004US6788693 System and method for interfacing a local communication device
09/07/2004US6788677 Gateway apparatus, terminal specification method for gateway apparatus and computer-readable recording medium having recorded terminal-specifying program
09/07/2004US6788675 Method and apparatus for telecommunications using internet protocol
09/07/2004US6788674 Method and apparatus for establishing a collect call originated through a packet based network
09/07/2004US6788672 Method and apparatus for telephone messaging
09/07/2004US6788667 Wireless access to wired network audio services using mobile voice call
09/07/2004CA2270048C A method and apparatus for charging for an outgoing voice call performed during an internet session
09/02/2004WO2004075518A1 Communication node, signaling network, communication network system, and communication method thereof
09/02/2004WO2004075515A2 An improved telephony security system
09/02/2004WO2004075003A2 Internet telephony network and methods for using the same
09/02/2004WO2004074984A2 Rules based real-time communication system
09/02/2004WO2004039048A3 Status messaging using associated phone tags