Patents
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
02/2009
02/19/2009WO2008121347A8 System and method for gateway call routing
02/19/2009US20090046845 System, Method, and Computer-Readable Medium for By-Passing the Public Switched Telephone Network When Interconnecting an Enterprise Network and a Carrier Network
02/19/2009US20090046609 Transaction control system including portable data terminal and mobile customer service station
02/18/2009EP2026550A1 Incoming call routing system and method for a VoIP network
02/18/2009EP1495413B1 Messaging response system
02/18/2009CN201197168Y Network telephone switch
02/18/2009CN101371561A Home communications server
02/18/2009CN101370057A Method for sharing network resource
02/18/2009CN101369880A Detection processing method and apparatus for time label jumping
02/18/2009CN100463551C System and method for realizing encrypted communication in mobile communication system
02/17/2009US7492887 Network group pickup
02/17/2009US7492886 Method for allocating network resources
02/17/2009US7492885 System and method for establishing communication services between different users
02/17/2009US7492791 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system
02/17/2009US7492769 Embedding a session description message in a real-time control protocol (RTCP) message
02/17/2009US7492757 Hybrid packet-switched and circuit-switched telephony system
02/17/2009US7492748 System for digital radio communication between a wireless LAN and a PBX
02/12/2009WO2009018779A1 Method, modem and server for bridging telephone calls into internet calls
02/12/2009US20090041225 Systems, methods, and computer program products for number translation with local directory number support
02/11/2009EP2021960A2 Secure mobile information management system and method
02/11/2009EP1282975B1 System and method for providing telephony services
02/11/2009EP1260056B1 System and method for providing group communication services
02/11/2009EP1238524B1 Method for signaling an incoming call
02/11/2009CN201194405Y Wireless sensor network node apparatus for speech collection and transmission
02/11/2009CN101366257A Service chaining
02/11/2009CN101365021A Systems and methods for connecting heterogeneous networks
02/11/2009CN101365020A Method for converting phone call into internet call, modem and server
02/11/2009CN101364982A Ip telephone terminal, ip telephone system and recording medium
02/11/2009CN101364942A Secure call recording system for ip telephony
02/11/2009CN101364854A Dropped voice packet recovery technique based on edge information
02/11/2009CN101364153A Method for switching sound source by mouse device
02/11/2009CN100461807C Enhanced caller id information based on access device information via a broadband access gateway
02/11/2009CN100461799C Wireless network interface setting method and apparatus for network media telephone
02/10/2009USRE40634 Voice interaction analysis module
02/10/2009US7489771 Systems and methods for implementing call pickup in a SIP environment
02/10/2009US7489679 Providing telephony services using proxies
02/10/2009US7489678 Voice packet communications system with communications quality evaluation function
02/10/2009US7489644 Voice architecture for transmission over a shared, contention based medium
02/10/2009US7489633 Method and apparatus for differential link bring-up for MoIP on the Internet
02/10/2009US7489624 Scanning by remotes in multipoint-to-point communication using orthogonal frequency division multiplexing
02/10/2009US7489623 Control modulation in multipoint-to-point communication using orthogonal frequency division multiplexing
02/05/2009WO2009017635A1 Call transfer with multiple application servers in session initiation protocol-based network
02/05/2009WO2009015567A1 Method and system for detecting data attribute and a data attribute analyzing device
02/05/2009WO2008110723A4 Method for optimising the routing of communications between a plurality of telephony domains
02/05/2009US20090034710 Telephone system and exchange apparatus therefor
02/05/2009US20090034700 Messaging advise in presence-aware networks
02/05/2009US20090034696 Mechanism of distributing voice call using email distribution groups
02/05/2009US20090034691 Method of providing 911 service to a private branch exchange
02/05/2009US20090034536 Method and system for localising users for services based on sip or h.323 protocols with dynamic ip address allocation
02/05/2009US20090034513 Internet based telephone line
02/05/2009US20090034454 Hierarchical Data Collection Network Supporting Packetized Voice Communications Among Wireless Terminals and Telephones
02/04/2009EP1438853B1 Videoconference system
02/04/2009CN101360154A Telephone system and exchange apparatus therefor
02/04/2009CN101360153A Interface apparatus, exchange apparatus with the apparatus, and control method for use in the apparatus
02/04/2009CN101360152A Communication method providing VOIP multi-mode telephone on execution apparatus
02/04/2009CN101360151A Network telephone system under general plug and use UPnP network protocol
02/04/2009CN101360147A Telephone consulting agency system
02/04/2009CN100459631C Method for building voice call directly via instant communication system
02/04/2009CN100459620C Security module for encrypting a telephone conversation
02/04/2009CN100458767C Method and apparatus for reliable and efficient content-based routing and query and response in a publish-subscribe network
02/03/2009US7486786 Apparatus and method for performing impedance synthesis in a transmitter
02/03/2009US7486781 Release link trunking for IP telephony
02/03/2009US7486780 System and method for the creation and automatic deployment of personalized, dynamic and interactive voice services, with telephone-based service utilization and control
02/03/2009US7486684 Method and apparatus for establishment and management of voice-over IP virtual private networks in IP-based communication systems
02/03/2009US7486667 Method and apparatus for interfacing a public switched telephone network and an internet protocol network for multi-media communication
02/03/2009US7486662 Method and system of managing connections between circuit-switched and packet-switched networks
02/03/2009US7486629 System for controlling conference circuit in packet-oriented communication network
02/03/2009CA2404705C Method and apparatus related to call centre templates for handling caller-identified network difficulties
02/03/2009CA2389047C Broadband network with enterprise wireless communication system and method for residential and business environment
02/03/2009CA2289383C A system and method for detecting an off-hook condition
01/2009
01/29/2009WO2009014974A1 Using pstn reachability to verify voip call routing information
01/29/2009WO2009014938A1 Automated distortion detection for voice communication systems
01/29/2009WO2009012807A1 Setting up a call in a telecommunications network by addressing the destination with an uri in a circuit switched call setup request message
01/29/2009US20090028303 Messaging advise in presence-aware networks
01/29/2009US20090028302 Voicexml and rule engine based switchboard for interactive voice response (ivr) services
01/29/2009US20090028134 Management and Control of Call Center and Office Telephony Assets
01/29/2009US20090028133 Method for providing hysteresis to fluctuating signaling link
01/28/2009EP1730650A4 Predictive communication routing scheme using instant messaging preferences and/or settings for routing packet traffic for voice, video or other multimedia communications
01/28/2009EP1348165A4 System and method for coordinating a conference using a dedicated server
01/28/2009CN101355818A Transmission method, system and apparatus for internet protocol voice communication in wireless system
01/28/2009CN101355615A System and method for directly pointing to dial on Web page
01/28/2009CN101355614A Telephone exchange apparatus and control method for use in the apparatus
01/28/2009CN101355613A Method and apparatus for distinguishing call type in IP voice network
01/28/2009CN101355608A System and method for implementing IP conversion of color ring
01/28/2009CN101355601A Network official telephone for digital microwave system and implementing method thereof
01/28/2009CN100456789C communication terminal unit and method for control of same
01/28/2009CN100456720C Routing telecommunications to a user in dependence upon location
01/27/2009US7484240 Mechanism to allow authentication of terminated SIP calls
01/27/2009US7483945 Method of, and system for, webcasting with just-in-time resource provisioning, automated telephone signal acquisition and streaming, and fully-automated event archival
01/27/2009US7483528 Loop extender with selectable line termination and equalization
01/27/2009US7483525 Method and system for selecting a communication channel with a recipient device over a communication network
01/27/2009US7483523 Time delay compensation device for the management of multimedia communications via an asynchronous network and a telephone network
01/27/2009US7483441 Methods and system for fast session establishment between equipment using H.324 and related telecommunications protocols
01/27/2009US7483431 Method for transmitting data in a telecommunications network and switch for implementing said method
01/27/2009US7483417 Telephony communication via varied redundant networks
01/27/2009US7483414 Device to terminate a modem relay channel directly to in IP network
01/27/2009US7483400 Managing a packet switched conference call
01/27/2009US7483372 Communication network
01/27/2009US7483369 Method and apparatus for migrating to an alternate call controller
01/27/2009CA2423906C System and process to facilitate remote customer-service
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