| Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777) |
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| 05/28/2009 | US20090136019 Method and apparatus for communicating information about a called party to a calling party |
| 05/28/2009 | US20090136007 Emergency Call System Between a Telecommunication Device and an Emergency Call Center |
| 05/28/2009 | US20090135811 Hybrid packet-switched and circuit-switched telephony system |
| 05/28/2009 | US20090135810 Device to terminate a modem relay channel directly to an IP network |
| 05/27/2009 | EP2063623A2 Emergency number selection for mobile communications device |
| 05/27/2009 | EP2062426A2 Methods, systems, and computer program products for associating independent legs of a call in a telecommunications network |
| 05/27/2009 | EP2062419A1 Telephony endpoint routing in an ip multimedia subsystem |
| 05/27/2009 | EP2062417A2 System and method for overload control in a next generation network |
| 05/27/2009 | EP2062406A1 Client controlled dynamic call forwarding |
| 05/27/2009 | EP2062157A2 Voip telecommunications switch |
| 05/27/2009 | CN101442821A Method and apparatus for optimizing ascending voice transmission in wireless LAN |
| 05/27/2009 | CN101442820A Method and apparatus for controlling multi-host business in mobile IP system |
| 05/27/2009 | CN101442761A Method, mobile terminal and system for evaluating voice quality of wireless network |
| 05/27/2009 | CN101442593A Method, system and equipment for resolving voice circuit circuitous of queuing machine |
| 05/27/2009 | CN101442575A Method for implementing network voice system |
| 05/27/2009 | CN101442500A Control method for multipartite voice interaction, share and decentralization of display content |
| 05/27/2009 | CN101442480A Network communication method based on STUN protocol |
| 05/27/2009 | CN101442473A Method, equipment and system for managing access session control policy |
| 05/27/2009 | CN101442416A Extended laminated concatenation type network telephone real time billing system |
| 05/27/2009 | CN101442405A Authentication method for dialing network telephone through portable communication device |
| 05/27/2009 | CN100493124C Method for dynamically providing a terminal connected to a public communication network, with services offered by a dedicated telecommunication network |
| 05/27/2009 | CN100493107C Method and device for controlling network voice communication audio frequency apparatus |
| 05/27/2009 | CN100493050C IP telephone access system, customer's terminating device thereof and IP telephone access method |
| 05/26/2009 | US7539794 PRBS generator selection in modem communication |
| 05/26/2009 | US7539749 Method and apparatus for session reconstruction |
| 05/26/2009 | US7539502 System and method for intelligent dynamic message addressing |
| 05/26/2009 | US7539494 Inter-site call routing and roaming support |
| 05/26/2009 | US7539299 Office-line trunk circuit operating on ground-start and loop-start modes, method of controlling same, and control program for same |
| 05/26/2009 | US7539178 Connection of users in hybrid communication networks |
| 05/26/2009 | US7539126 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 05/26/2009 | US7537167 Modular, portable data processing terminal for use in a radio frequency communication network |
| 05/26/2009 | CA2486335C Direct access arrangement |
| 05/21/2009 | US20090132476 Policy based information lifecycle management |
| 05/21/2009 | US20090129582 Communication system tonal component maintenance techniques |
| 05/21/2009 | US20090129580 Geographic trunk groups |
| 05/21/2009 | US20090129566 Providing real-time voice communication between devices connected to an Internet Protocol network and devices connected to a public switched telephone network |
| 05/21/2009 | US20090129381 Method For Transmitting Data In a Telecommunications Network And Switch For Implementing Said Method |
| 05/20/2009 | EP2060105A2 Method and server for notifying a call in a network |
| 05/20/2009 | EP1900163A4 Efficient address caching for packet telephony services |
| 05/20/2009 | EP1751923A4 Multimedia access device and system employing the same |
| 05/20/2009 | EP1119956B1 Point-of-presence call center management system |
| 05/20/2009 | CN101437177A Method and apparatus for obtaining route |
| 05/20/2009 | CN101437093A Implementation of calling address transmission in IMS network |
| 05/20/2009 | CN101437092A Method and apparatus for implementing VoIP business |
| 05/20/2009 | CN101437090A Call center suitable for TDM and IP mixing network |
| 05/20/2009 | CN101437086A System and method for implementing voice test |
| 05/20/2009 | CN101437032A System for monitoring VOIP voice quality based on SIP protocol and detection method thereof |
| 05/20/2009 | CN101437020A Medium control method, system and equipment |
| 05/20/2009 | CN100490528C Method for establishing an IP video-conference using a telephone network for voice transmission |
| 05/20/2009 | CN100490487C Communication terminal device and communication method |
| 05/20/2009 | CN100490484C Voice communications system |
| 05/20/2009 | CN100490478C Device and method for providing wired and wireless unfinished call transmission information |
| 05/20/2009 | CN100490401C A method and device for voice stream detection |
| 05/19/2009 | US7536010 Exchange system, button telephone set and exchange |
| 05/19/2009 | US7536001 Generation of availability indicators from call control policies for presence enabled telephony system |
| 05/19/2009 | US7535998 Voice over IP method for developing interactive voice response system |
| 05/19/2009 | US7535892 Voice over internet protocol system having dynamic gain control function and method thereof |
| 05/19/2009 | US7535890 System and method for instant VoIP messaging |
| 05/19/2009 | US7535822 Synchronization of remote units for a communication network |
| 05/19/2009 | CA2430493C Call distribution |
| 05/14/2009 | US20090122971 Device and Method Allowing To Successively Use Several Terminal Devices In a Same Voice Communication |
| 05/14/2009 | US20090122883 Follow-up synchronization to maintain synchronization throughout transmission |
| 05/14/2009 | US20090122881 Follow-up synchronization to maintain synchronization throughout transmission |
| 05/13/2009 | EP2057783A2 Methods, systems, and computer program products for hairpin condition elimination in a telecommunications network |
| 05/13/2009 | EP1920567A4 System for service sharing and controling contents in voice session and thereof method |
| 05/13/2009 | EP1856849A4 METHOD AND APPARATUS FOR LIMITING VPNv4 PREFIXES PER VPN IN AN INTER-AUTONOMOUS SYSTEM ENVIRONMENT |
| 05/13/2009 | EP1700464B1 Method and device for evaluating the quality of an audio signal and device and method for receiving the result of a quality evaluation |
| 05/13/2009 | CN101433070A Methods, systems, and computer program products for selectively processing or redirecting signaling connection control part (SCCP) messages |
| 05/13/2009 | CN101431727A Mobile communication device providing integrated access to telephony and internet service |
| 05/13/2009 | CN101431577A Gateway device and system of network telephone and automatic number jumping method |
| 05/13/2009 | CN101431576A Synthetic voice resource processing board card |
| 05/13/2009 | CN101431575A Method for establishing and facilitating audio conference through network, and audio conference apparatus |
| 05/13/2009 | CN101431574A CPCI double-master control CPU hot stand-by system |
| 05/13/2009 | CN100488134C Voice network system on network agreement |
| 05/12/2009 | US7533287 Method for processing a connection-mode IP connection according to non-availability situations |
| 05/12/2009 | US7532612 Transmission timing |
| 05/12/2009 | US7532606 DTMF signal transmission method and communication apparatus |
| 05/12/2009 | US7532566 Use of identifier of remote unit for downstream signals |
| 05/12/2009 | CA2462316C Instant messaging to and from pbx stations |
| 05/07/2009 | WO2009056928A1 System, apparatus and method for updating gsm to ims communication services |
| 05/07/2009 | WO2009007956A4 A method for initiating a connection between communication devices of at least two parties |
| 05/07/2009 | US20090116634 Accommodation of two independent telephony systems |
| 05/07/2009 | US20090116476 Method for forwarding and storing session packets according to preset and/or dynamic rules |
| 05/07/2009 | US20090116414 Mass Viewer Audience Circuit Based Real Time Participation In Interactive Applications Displayed Live On Display Screens |
| 05/07/2009 | US20090116392 Communication network, path setting method, network management system and node |
| 05/06/2009 | EP2056556A1 An intercommunication method and a communication system between different networks |
| 05/06/2009 | EP2055091A1 Call abuse prevention for pay-per-call services |
| 05/06/2009 | EP2055089A1 Device and method for enabling sip dect terminal mobility |
| 05/06/2009 | EP1941694B1 Technique for interconnecting circuit-switched and packet-switched domains |
| 05/06/2009 | CN201234307Y Dialing apparatus and system based on analog telephone |
| 05/06/2009 | CN101426265A Method for reducing downlink and uplink bandwidth resource overhead of IP speech service |
| 05/06/2009 | CN101426060A Method, soft switching device and system for double home soft switch |
| 05/06/2009 | CN101426059A Novel communication terminal based on IPv6 internet technique |
| 05/06/2009 | CN101425932A Presence management system |
| 05/06/2009 | CN100486371C Calling authorization realizing method and system, and gate keeper |
| 05/06/2009 | CN100486271C Test method for VoIP language technology capacity of access network |
| 05/05/2009 | US7529361 Method for NPA split processing |
| 05/05/2009 | US7529359 Caller treatment in a SIP network |
| 05/05/2009 | US7529353 Using a voice extensible markup language browser to implement an advanced intelligent network intelligent peripheral |
| 05/05/2009 | US7529350 System and method for obtaining equipment status data over a network |