Patents
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
07/2010
07/01/2010CA2748403A1 Methods and communications node for routing communications using a bi-level addressing scheme
06/2010
06/30/2010EP2203026A1 Unity number service call processing method, system and device
06/30/2010EP1665560B1 Multiple imsi multiple/single msisdn (mimm/mism) on multiple sims for a single operator
06/30/2010CN1855901B Gatekeeper apparatus
06/30/2010CN101766014A Automated distortion detection for voice communication systems
06/30/2010CN101765219A Multichannel communication service system
06/30/2010CN101765103A Mobile telecommunication number portability system based on signaling relay technology
06/30/2010CN101764899A Method for realizing call authentication gateway
06/30/2010CN101764898A Shortcut dialling method, client and system
06/30/2010CN101764897A 无线网络电话交换装置及电话通讯方法 Apparatus and method for a wireless telephone communication network telephone exchange
06/30/2010CN101764892A System for detection and interception of harassing call
06/30/2010CN101764690A Internet-based secret information communicating method
06/29/2010US7747002 Method and system for stereo echo cancellation for VoIP communication systems
06/29/2010US7746905 Private telephone network connected to more than one public network
06/29/2010US7746845 Support for fax and modem in SIP/SIP-T networks and the interworking of these networks with ISUP+/BICC
06/29/2010US7746844 Method and apparatus for analysis of VoIP network performance
06/29/2010US7746797 Non-intrusive monitoring of quality levels for voice communications over a packet-based network
06/24/2010US20100157992 Data sin/data source, data transmission device and data terminal device for a circuit-switched and packet-switched network
06/24/2010US20100157983 System and Method for Providing Alternate Routing in a Network
06/24/2010US20100157979 System and Methods for Improving Interaction Routing Performance
06/24/2010US20100157852 Systems and methods for multiple mode voice and data communications using intelligenty bridged TDM and packet buses and methods for performing telephony and data functions using the same
06/24/2010DE19832433B4 Einrichtung zum Erstellen und Aufrufen von Benutzerprofilen in einem Nachrichtensystem Means for creating and invoking user profiles in a communication system
06/23/2010EP2200378A1 Telecommunication network node and method for its operation
06/23/2010EP2200262A2 Auto block and auto discovery in a distributed communication
06/23/2010EP1700499B1 Method and communication system for automatically discovering the multmedia service capability
06/23/2010EP1506657B1 Dynamic call control
06/23/2010CN201515424U Embedded phone system playing voice according to keystroke
06/23/2010CN1917539B Method and system of realizing intercomminication between networks from different operational managers
06/23/2010CN1823519B Peer-to-peer telephone system and method thereof
06/23/2010CN1596535B Information communication system, information communication device and information communication method
06/23/2010CN1361994B Capability negotiation system, apparatus and method in a telecommunications network
06/23/2010CN101755445A Using PSTN reachability to verify VolP call routing information
06/23/2010CN101753741A IPPBX integrated with 2G, PSTN and VOIP accesses
06/23/2010CN101753740A Communication method and gateway equipment based on SIP telephone
06/23/2010CN101753739A Implementation method for non-local sound reproduction of terminal under NAT
06/23/2010CN101753738A Communication method for connection with a communication application service and a related gateway thereof
06/23/2010CN101753737A Network telephone switch and voice gateway switch
06/23/2010CN101753735A Method, system and equipment for performing multimedia service processing on call
06/23/2010CN101753631A Communication method, network address acquisition method and network apparatus
06/23/2010CN101753587A Method for realizing traffic control
06/23/2010CN101753379A System and method for fast detection of communication path failures
06/23/2010CN101753326A Interconnection selection function module for methods of business interconnection and session channel establishment and device
06/23/2010CN101753325A Network voice communication system and method thereof
06/23/2010CN101753179A VoIP-PSTN hybrid intelligent terminal based on Bluetooth and working method thereof
06/23/2010CN101064868B Voice calling method used for patients
06/22/2010US7743149 SIP messages carrying executable computer software code
06/22/2010US7742916 Method and devices for evaluating transmission times and for processing a voice signal received in a terminal connected to a packet network
06/22/2010US7742768 Extension of a local area phone system to a wide area network
06/22/2010US7742588 Speakerphone establishing and using a second connection of graphics information
06/22/2010US7742462 CD-ROM on which a program for functioning as an IP telephone terminal is recorded, management server, operation server, and IP telephone terminal setup method
06/22/2010US7742460 Method for detecting calls and corresponding units
06/22/2010CA2472571C Communication network
06/17/2010WO2010068512A1 Traffic allocation
06/17/2010WO2010066998A2 Method for activating client software in an instant messaging system
06/17/2010WO2010066890A1 Grouping of circuits
06/17/2010US20100150335 Call routing
06/17/2010US20100150142 Telephone Service Via Packet-Switched Networking
06/16/2010EP2197191A1 Directory delivery system and method for a digital subscriber line modem
06/16/2010EP2196903A2 System, device and method for managing interactive content on a computing device
06/16/2010EP2196066A1 Dynamic transcoder placement
06/16/2010EP1495603B1 Call completion via instant communications client
06/16/2010EP1457063B1 Combining narrowband applications with broadband transport
06/16/2010CN1997081B Wireless terminal access method based on the bluetooth interface and its device
06/16/2010CN1965564B Method for remote service forwarding between dissimilar systems with operator, service and location portability
06/16/2010CN1960417B IP network and communication method
06/16/2010CN1625879B Address hopping of packet-based communications
06/16/2010CN1534972B Fast netowrk STD/SDP procedure used for conference junction according to user's inquiry for optimizing netowrk resource
06/16/2010CN101742012A Method and equipment for dynamically selecting service carrying networks to improve speech quality
06/16/2010CN101742011A Lawful interception method for internetwork telephone domain and system thereof
06/16/2010CN101742010A Method and device for network extension to dial traditional extension and computer program product thereof
06/16/2010CN101742009A Method, system and device for session association
06/16/2010CN101742008A Media stream proxy method, voice exchanger and communication system
06/16/2010CN101741995A Method, system and device for service filter
06/16/2010CN101741994A Call recording method and communication system
06/16/2010CN101741993A Method, equipment and system for carrying data service of point of sale (POS)terminal by IP network
06/16/2010CN101741990A Call relay system, call relay device, call relay method and program
06/16/2010CN101741711A Fabric switch card independent from MCH and Micro Telecommunications Computing Architecture system
06/16/2010CN101741639A Method and device for realizing signaling monitoring, and signaling gateway
06/16/2010CN101141507B Power-off escape method and apparatus
06/16/2010CN101136972B Method for processing unknown error message of destination state
06/16/2010CN101132450B Multifunctional voice plate card
06/16/2010CN101127776B System, method and device for multimedia information collection, management and service
06/15/2010US7739730 Mechanism for automatically configuring integrated access device for use in voice over digital subscriber line circuit
06/15/2010US7738886 Wireless digital personal communications system having voice/data/image two-way calling and intercel hand-off
06/15/2010US7738653 Method for selecting impedance setting for loop start trunk line
06/15/2010US7738649 Computer system using identification information and control method thereof
06/15/2010US7738648 Methods, systems and computer program products for rerouting specific services traffic from a signaling message routing node
06/15/2010US7738647 Local routing management in a telecommunications network
06/15/2010US7738646 Method and system for monitoring and managing multi-sourced call centers
06/15/2010US7738642 Reverse charging system, reverse-charging service control apparatus, call agent and reverse charging method
06/15/2010US7738453 Telephone system having multiple sources and accessories therefor
06/15/2010US7738449 Method and apparatus for providing voice signals to and from a telecommunications switch
06/15/2010US7738447 Voice communication system and voice communication method
06/10/2010WO2010065093A1 Loop condition prevention at internetwork interface boundary
06/10/2010US20100142697 Method of conditionally routing a call made to a fixed telephone number
06/10/2010US20100142693 Method and System for Providing Calling Number Restoral
06/10/2010US20100142519 Method and system for an ethernet ip telephone chip
06/10/2010US20100142518 Hierarchical Data Collection Network Supporting Packetized Voice Communications Among Wireless Terminals and Telephones
06/10/2010US20100142503 Hierarchical Data Collection Network Supporting Packetized Voice Communications Among Wireless Terminals And Telephones
06/09/2010EP2194700A2 Telephone call processing
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