Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777) |
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01/21/2004 | CN1135819C Subscriber matched circuit for electronic exchanger |
01/21/2004 | CN1135812C Apparatus and method for compensating signal attenuation on telehpone line |
01/21/2004 | CN1135791C Device and method in assemblied localnetwork telephone/private branch exchanger system |
01/21/2004 | CN1135789C Method and system for telecommunication resources negotiation |
01/21/2004 | CN1135783C User registration in a telecommunication network |
01/20/2004 | US6681252 System and method for interconnecting portable information devices through a network based telecommunication system |
01/20/2004 | US6681008 Automated toll-free telecommunications information service and apparatus |
01/20/2004 | US6681001 Computer integrated telecommunications systems and methods |
01/20/2004 | US6681000 Signal converter server network information system control methods thereof and telephone terminal |
01/20/2004 | US6680952 Method and apparatus for backhaul of telecommunications signaling protocols over packet-switching networks |
01/20/2004 | US6680935 Anonymous call rejection |
01/15/2004 | WO2004006616A2 Methods and apparatus for data communication |
01/15/2004 | WO2004006598A1 Avoidance of an invalid functioning of a media gateway controller or a media gateway |
01/15/2004 | WO2004006597A1 Avoidance of transcoding or interruption on live load coding exchange in extant connections |
01/15/2004 | WO2004006553A1 Central exchange for an ip monitoring |
01/15/2004 | WO2004006552A1 Mobile telephone system using local communication network |
01/15/2004 | WO2004006530A1 Network comprising search functions that are integrated into communication components |
01/15/2004 | WO2004006529A1 Communication network comprising communication components having client and server functionalities and search functions |
01/15/2004 | WO2004006507A2 Configuration of a broadband cable network-based telephony access network and a respective packet-based exchange |
01/15/2004 | WO2004006504A1 Testing of transmission quality in packet-based networks |
01/15/2004 | WO2004006475A2 Managing a packet switched conference call |
01/15/2004 | WO2004006462A1 Runtime-dependent switching off of the echo compensation in packet networks |
01/15/2004 | WO2003083759A3 System and method for conducting multiple communications with a party |
01/15/2004 | US20040010582 Predictive provisioning of media resources |
01/15/2004 | US20040008837 Combining multimedia services with traditional telephony services in a public branch exchange |
01/15/2004 | US20040008735 System for common channel communication using a packet switched network |
01/15/2004 | US20040008734 Method for common channel communication using a packet switched network |
01/15/2004 | US20040008710 Communicaton system, method and cotroller for routing calls within private networks distributed among geographically distant zones |
01/15/2004 | US20040008670 System for interconnecting packet-switched and circuit-switched voice communications |
01/15/2004 | US20040008665 Providing end-user communication services over peer-to-peer internet protocol connections between service providers |
01/15/2004 | US20040008621 System and method for providing advanced calling features to a packet network-based communication device and packet network employing the same |
01/15/2004 | DE20317501U1 Integrated communication apparatus providing universal voice message transmission and reception for different types of telephone |
01/15/2004 | DE10162986B4 Anbindung von Netzwerken mit unterschiedlichen Protokollen Connectivity of networks using different protocols |
01/14/2004 | EP1381236A2 Multimedia communications via public telephone networks |
01/14/2004 | EP1381212A1 Method for displaying information on the display of a wired telephone |
01/14/2004 | EP1381211A2 Queueing of calls and virtual interaction with caller using Internet protocols |
01/14/2004 | EP1380166A1 An alternative network service for video conferencing applications |
01/14/2004 | EP1380143A2 Method for establishing communication paths between access points of a communication system and a communication system using said method |
01/14/2004 | CN1468490A Calling equipment adapter and line connecting method and line connecting program and recording media |
01/14/2004 | CN1467962A Voice packet preferential control equipment and control method thereof |
01/14/2004 | CN1135015C Mobile management system and method for internet telephone call to mobile terminal |
01/14/2004 | CN1134963C Telephone doubler arrangement and method for implementing the same |
01/14/2004 | CN1134944C System and method for providing mobile switching and multiparty service over packet-switched network |
01/13/2004 | US6678659 System and method of voice information dissemination over a network using semantic representation |
01/13/2004 | US6678374 Tone based answer detection for IP based telephones |
01/13/2004 | US6678357 Internet protocol (IP) emergency connections (ITEC) telephony |
01/13/2004 | US6678266 ACD with packet data based agent interconnect |
01/13/2004 | US6678242 Signaling system for telecommunications |
01/13/2004 | CA2283523C Methods and systems for absent addressing service |
01/08/2004 | WO2003100993A3 Integrated access device |
01/08/2004 | WO2003088507A3 Methods and systems for intelligent signaling router-based surveillance |
01/08/2004 | WO2003065706A3 Multipoint audiovisual conferencing system |
01/08/2004 | US20040006648 Card type network interface, network conference terminal device and network conference system |
01/08/2004 | US20040004957 Methods and apparatus for data communication |
01/08/2004 | DE10223980A1 Verfahren zur Leitweglenkung von Kommunikationsverbindungen A method of routing of communication links |
01/07/2004 | EP1379050A2 Server mediated point-to-point communication over a computer network |
01/07/2004 | EP1379039A2 Point-to-point communication using e-mail to establish dynamic network addresses |
01/07/2004 | EP1378815A2 Multi-level radio-frequency communication system |
01/07/2004 | EP1378112A2 System and method for performing ip telephony |
01/07/2004 | EP1378108A2 Method for carrying out monitoring measures and information searches in telecommunication and data networks with, for instance, internet protocol (ip) |
01/07/2004 | EP1378101A2 Voip terminal security module, sip stack with security manager, system and security methods |
01/07/2004 | CN1134141C Telecommunications switch including integrated internet access |
01/06/2004 | US6675340 Forward error correction (FEC) for packetized data networks |
01/06/2004 | US6674853 Integration of remote access and service |
01/06/2004 | US6674761 Method for controlling multi-channel voice data of gateway system and apparatus thereof |
01/06/2004 | US6674759 System for managing telecommunications |
01/06/2004 | US6674749 Bandwidth transfer switching system |
01/06/2004 | US6674746 Method and apparatus for voice over internet protocol swapping in a communications system |
01/06/2004 | US6674745 Method and system for mapping phone numbers to IP addresses |
01/06/2004 | US6674725 Method and system for dynamic service classification and integrated service control |
01/06/2004 | US6674713 Method and apparatus for providing continuous voice and call communications between a data network and a telephony network |
01/06/2004 | CA2133426C Automated telecommunication peripheral system |
01/02/2004 | EP1377005A1 Collaboration using instant messaging in multimedia telephony-over-LAN conferences |
01/02/2004 | EP1377004A1 Method for establishing a conference circuit between several subscriber terminals of a communications network |
01/02/2004 | EP1377001A2 Apparatus and methods enhancing call routing to and within call-centers |
01/02/2004 | EP1374549A1 Caller treatment in a sip network |
01/02/2004 | EP1374545A1 Voip systems |
01/02/2004 | EP1374544A2 A component for processing ip telephony calls |
01/02/2004 | EP1374509A1 Shared dedicated access line (dal) gateway routing discrimination |
01/02/2004 | EP1374508A1 Recursive query for communications network data |
01/02/2004 | EP1374507A1 Selective feature blocking in a communications network |
01/02/2004 | EP1374071A1 A method for recording events in an ip network |
01/02/2004 | EP1374057A1 SYSTEM, METHOD AND APPARATUS THAT EMPLOY VIRTUAL PRIVATE NETWORKS TO RESIST IP QoS DENIAL OF SERVICE ATTACKS |
01/02/2004 | EP1373912A1 Communications system with fraud monitoring |
01/02/2004 | EP1373911A1 Pots extender for voice fallback in a subscriber line field of the invention |
01/01/2004 | US20040003089 Method for maintaining communication between communication devices having inconsistent protocols |
01/01/2004 | US20040003048 Outbound notification using customer profile information |
01/01/2004 | US20040003041 Messaging response system |
01/01/2004 | US20040002864 Method for controlling bandwidth in a voice over internet protocol system |
01/01/2004 | US20040001582 Redirection of communication based on a party's presence |
01/01/2004 | US20040001482 Method for sending dual-tone multi-frequency signal using voice over internet protocol |
12/31/2003 | WO2004002173A1 Fail-safe interfacing of a network element with a communication network |
12/31/2003 | WO2004002153A1 Ancillary information transmission while user is on hold during a telecommunications device teleconference |
12/31/2003 | WO2004002116A2 Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery |
12/31/2003 | WO2004002067A2 Method and device for establishing a communication between a calling computer terminal and a called computer terminal |
12/31/2003 | WO2004002043A2 Methods and systems for improving trunk utilization for calls to ported numbers |
12/31/2003 | WO2003088628A3 Method and apparatus for transmitting signaling tones over a packet switched network |
12/31/2003 | WO2002074053A3 Systems and methods for interfacing with a billing and account management unit |
12/31/2003 | WO2002063413A3 Method and system for providing service |
12/31/2003 | CN1465199A Method and apparatus for transmitting, receiving, and executing application query messages via an internet protocol transport |