Patents
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
02/2011
02/23/2011CN101980518A Method, system and terminal for transmitting data
02/23/2011CN101426265B Method for reducing downlink and uplink bandwidth resource overhead of IP speech service
02/23/2011CN101409746B Method and system for detecting telephone signal tone facing to call centre
02/23/2011CN101116305B Framing format selection in a communications network with a user plane
02/22/2011US7895313 Systems and methods for storing, delivering, and managing messages
02/22/2011US7895306 Systems and methods for storing, delivering, and managing messages
02/22/2011US7894595 Telephony control system with intelligent call routing
02/22/2011US7894594 Communications system with interface for enabling communication of alerts to mobile wireless communications devices
02/22/2011US7894593 Callback services in a communication system
02/22/2011US7894581 Convergence of circuit-switched voice and packet-based media services
02/22/2011US7894423 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
02/22/2011US7894421 Voice and data exchange over a packet based network
02/22/2011US7894373 Networked computer telephony system driven by web-based applications
02/17/2011US20110038473 Selective bandwidth connectivity through network line cards
02/16/2011EP2285081A1 Method and apparatus for providing telecommunication services
02/16/2011CN201750553U Calling system based on wireless network
02/16/2011CN201750475U Speech data transmission processor
02/16/2011CN101287047B Signal transmission method, system, display system and single board for interface indicating lamp
02/15/2011US7889722 System for interconnecting standard telephony communications equipment to internet protocol networks
02/10/2011US20110033035 System and method for initiating a conference call
02/10/2011DE19805891B4 Konfigurationsvorrichtung für eine Nebenstellenanlage Configuration device for a PBX
02/09/2011EP2282502A1 Integration of heterogenous VoIP servers such as IP-PBX and presence servers such as Microsoft Office Communications Server
02/09/2011CN201742405U Ground station system for inspecting power transmission line
02/09/2011CN1643884B Network game method, network game terminal, and server
02/09/2011CN101969526A Three network fused set top box
02/09/2011CN101969516A Communication apparatus and control method thereof
02/09/2011CN101969514A Digital cordless telephone and multi-account number separation method thereof
02/09/2011CN101969512A IP (Internet Protocol) voice private line control method and equipment thereof
02/09/2011CN101969437A IP fax method and gateway device
02/09/2011CN101969400A Method for matching number of voice over internet protocol terminal equipment
02/09/2011CN101968811A Method and device for online telephone data query, server, mobile phone and system
02/09/2011CN101114889B Signal processing method and system in wlan receiver
02/08/2011US7885815 System and method for access to multimedia structures
02/08/2011US7885400 Call features for automatic call distribution system
02/08/2011US7885399 Cost-conscious telecommunications terminal
02/08/2011US7885398 Multiple criteria based load balancing
02/08/2011US7885389 Method for controlling announcements and interactive responses in an exchange
02/08/2011US7885272 Remote control of device by telephone or other communication devices
02/08/2011US7885242 Enhanced mobility and address resolution in a wireless premises based network
02/08/2011US7885187 System and method for providing unified messaging system service using voice over internet protocol
02/08/2011CA2394008C A client-server network for managing internet protocol voice packets
02/08/2011CA2345665C Conversational computing via conversational virtual machine
02/03/2011US20110026704 Identity Management and Service Access for Local User Group Based on Network-Resident User Profiles
02/03/2011US20110026479 Method and system for transferring wireless transmit/receive unit-specific information
02/02/2011EP2280531A1 Unified communication system
02/02/2011CN201733364U Dispatching system for touch screen
02/02/2011CN201733307U Wireless microwave communication device and wireless integrated communication system
02/02/2011CN201732403U Multichannel voice and data recording instrument
02/02/2011CN101964806A Method for switching servers of SIP (Session Initiation Protocol) communication terminal
02/02/2011CN101247442B Computer communication method, device and system based on analog telephone
02/01/2011US7882439 Graphical user interface and method for customer centric network management
02/01/2011US7881453 Call processing system and service control point for handling calls to a call center
02/01/2011US7881452 Method for testing a local number portability (LNP) ported telephone number
02/01/2011US7881451 Automated directory assistance system for a hybrid TDM/VoIP network
02/01/2011US7881449 Enhanced call notification service
02/01/2011US7881443 System and method for real-time, personalized, dynamic, interactive voice services for travel availability information
02/01/2011US7881181 Systems and method for orthogonal frequency divisional multiplexing
02/01/2011US7881180 Systems and method for orthogonal frequency divisional multiplexing
02/01/2011CA2478361C Method and apparatus for migrating to an alternate call controller
02/01/2011CA2352961C Voice over data telecommunications network architecture
01/2011
01/27/2011US20110019811 System and method of providing local number portability
01/26/2011EP2278825A1 Method for signalling between a media gateway control function and a media gateway
01/26/2011CN201726543U Cross-media Internet bridge
01/26/2011CN201726460U Set top box with voice call function
01/26/2011CN201726453U Heterogeneous synergetic switching system
01/26/2011CN1949810B Conversation exchange method and device for network communication
01/26/2011CN1836432B More economical resource application on the user interaction with a speech dialogue system in a packet network by means of a simplifying processing of signalling information
01/26/2011CN101960816A A method and apparatus for allowing non-IP based networks to interact with IPTV-based systems
01/26/2011CN101958982A Representation information-based call sequencing system and calling method
01/26/2011CN101557495B Bandwidth control method of video conferencing system
01/26/2011CN101478835B VoWLAN system based on 1X EvDO-WiFi wireless router
01/26/2011CN101364854B Dropped voice packet recovery technique based on edge information
01/26/2011CN101278569B Method and system for routing and handling calls using personal rules
01/25/2011US7876743 Conversational bearer negotiation
01/25/2011CA2432822C Method for setting up communication paths between access points of a switching system, and switching system implementing said method
01/25/2011CA2326251C System, method and computer program product for support of bearer path services in a distributed control network
01/25/2011CA2271947C System and method for interfacing a local communication device
01/20/2011US20110013764 Method of establishing a communications call
01/20/2011US20110013622 Voice communication system and voice communication method
01/19/2011EP2274893A1 Methods and equipment for fault tolerant ip service
01/19/2011EP2274873A2 Method and apparatus for testing in a communication network
01/19/2011CN1992760B 通讯系统 Communication system
01/19/2011CN101953218A Dynamic transcoder placement
01/19/2011CN101951588A Method and system for accessing server during roaming process of software phone or IP phone user
01/19/2011CN101951346A SIP (Session Initiation Protocol) relay routing method and system thereof
01/19/2011CN101388802B Apparatus for test number transmission ability between networks
01/19/2011CN101335796B Decoding scheduling method and device
01/19/2011CN101304323B Method for implementing centralization of explicit call diverting service in IP multimedia subsystem
01/19/2011CN101068279B Emergency call return call realizing method
01/18/2011USRE42042 System for controlling processing of data passing through network gateway between two disparate communications networks
01/18/2011US7873153 Priority task list
01/18/2011US7872985 System for multi-frame alignment
01/18/2011CA2479934C Relaying of message waiting indications to support distributed telephony networks
01/13/2011US20110010444 Data communication
01/13/2011US20110007733 Hierarchical Data Collection Network Supporting Packetized Voice Communications Among Wireless Terminals And Telephones
01/13/2011US20110007724 Hierarchical communication system providing intelligent data, program and processing migration
01/12/2011EP2272244A1 Communication system
01/12/2011EP1203480B1 Service parameter interworking method
01/12/2011CN201708893U IP network interphone with remote door access control function
01/12/2011CN101945188A Wireless audio and video transmission system for transmission line helicopter routing inspection
1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ... 248