Patents
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
01/2001
01/25/2001CA2379805A1 Method and apparatus for efficient data transmission in a voice-over-data communication system
01/24/2001EP1071303A2 Method for initiating call blocking
01/24/2001EP1071299A1 System for monitoring the state of a link between a master station and a slave station
01/24/2001EP1071295A2 Messaging and status indication for wireless communication devices
01/24/2001EP1071269A1 Transmission method for subscriber line
01/24/2001EP1071268A1 Telecommunication system
01/24/2001EP1071266A1 Telephone recording systems
01/24/2001EP1071265A2 Method and central unit for incoming call treatment
01/24/2001EP1071246A2 Method and apparatus for swapping a voice call from the internet to a circuit switched network
01/24/2001EP1071233A2 Communication prize contest system and terminal device used in it and communication market research system and terminal device used in it
01/24/2001EP1070421A1 Method and system for supporting wireless communications within an internetwork
01/24/2001EP1070420A1 Procedure to step by step make a call in a public communications network
01/24/2001EP1070419A1 Procedure for establishing a call by means of voice rooting
01/24/2001EP1070418A1 Narrow-to-broadband virtual access services platform
01/24/2001EP1070417A1 Echo cancellation
01/24/2001EP1070416A1 Teleconferencing system
01/24/2001EP1070409A1 Acd with packet data based agent interconnect
01/24/2001EP1070404A1 Internet web site with audio interconnect and automatic call distributor
01/24/2001EP1070399A2 Managing bandwidth on demand for internet protocol messaging with capability for transforming telephone calls from one media type to another media type
01/24/2001EP0929880B1 Cashless payment by means of a mobile radio apparatus
01/24/2001CN1281626A Communications network
01/24/2001CN1281611A 通信网络 Communications network
01/24/2001CN1281183A Reproducing processor and control method of its abnormal bifurcation
01/23/2001US6178454 Data communication method and system therefor
01/23/2001US6178331 System and process for allowing wireless messaging
01/23/2001US6178323 System and method for determining a tentative master of a radio conference system
01/23/2001US6178322 Message waiting notification using ANSI-41 network messaging protocols
01/23/2001US6178241 Switch hook status determination in a communication system
01/23/2001US6178240 Method and apparatus for entertaining callers in a queue
01/23/2001US6178239 Telephony call-center scripting by petri net principles and techniques
01/23/2001US6178238 Speed calling when away from home
01/23/2001US6178237 Teleconferencing audio bridge
01/23/2001US6178236 Method and system for providing password protection
01/23/2001US6178232 Method and system for providing enhanced caller identification
01/23/2001US6178231 Method and system for generating predetermined messages during selected calls-in-progress
01/23/2001US6178183 Method and apparatus for receiving conventional telephone calls while connected to the internet
01/23/2001US6178167 Customer telecommunication interface device having a unique identifier
01/23/2001US6178166 Method and apparatus for group calls in a wireless CDMA communication system
01/23/2001US6178080 Resettable fast current limiter in telecommunications protection
01/23/2001US6177801 Detection of bridge tap using frequency domain analysis
01/23/2001US6176710 Battery feed connector for network power controllers
01/23/2001CA2215361C Detecting possible fraudulent communications usage
01/23/2001CA2192098C Access network
01/23/2001CA2190551C Systems and methods for controlling telephone sound enhancement on a per call basis
01/23/2001CA2002311C Overvoltage protection circuits
01/22/2001CA2312079A1 Method and apparatus for voice over internet protocol swapping in communications system
01/21/2001CA2314441A1 System for data exchanges between a master station and various slave stations connected by a radio data transmission network
01/19/2001CA2313554A1 Method for initiating call blocking
01/18/2001WO2001005152A1 Systems and methods for multimedia messaging in a cable or satellite subscriber system
01/18/2001WO2001005135A1 Method and apparatus for combining voice line card and xdsl line card functions
01/18/2001WO2001005134A1 Method and apparatus for combining voice line card and xdsl line card functions
01/18/2001WO2001005133A2 Telephone system
01/18/2001WO2001005130A1 Computer to telephone or computer to computer callback method
01/18/2001WO2001005129A1 Telecommunication number processing technique for a telephony server
01/18/2001WO2001005128A1 Selectable billing options for a single communications account
01/18/2001WO2001005127A1 System and method for packet network media redirection
01/18/2001WO2001005126A1 Method and system for implementing statistical functions in a telephone switching system
01/18/2001WO2001005109A1 Method and system for exchanging information between multimedia network nodes
01/18/2001WO2001005100A1 Tdma/tdd access method for a wireless transmission system
01/18/2001WO2001005099A1 Tcp/ip-centric qos-aware access frame in a wireless transmission system
01/18/2001WO2001005098A1 Tcp/ip packet-centric wireless transmission system architecture
01/18/2001WO2001005078A2 Transparent systems for communication over computer networks
01/18/2001WO2001004800A1 Real time support and information system
01/18/2001WO2001004768A1 Message-based ocr server
01/18/2001WO2001004767A1 Network addressing system and method using telephone numbers
01/18/2001WO2001004761A1 A telecommunications system
01/18/2001WO2001004722A2 System and method for matching agents with customers
01/18/2001WO2000064130A3 Determining the physical structure of subscriber lines
01/18/2001DE19932738A1 Navigationsverfahren und IN-Server hierfür Navigation method and IN-server for this
01/18/2001DE19932724A1 Route guidance system has mobile devices which acquire guidance information as required from central server
01/18/2001DE19932633A1 Method of exchanging information between cooperating companies
01/18/2001DE19931237A1 Verfahren und Testanordnung zum Testen von Leistungsmerkmalen von Kommunikationsanlagen Method and testing arrangement for testing performance characteristics of communication equipment
01/18/2001DE19930458A1 Tonruf-Frequenzbestimmungsvorrichtung und -verfahren Determining tone ringing frequency apparatus and method
01/18/2001DE19930147A1 Wartungsverfahren zum Warten einer Vermittlungseinrichtung und für die Ausführung des Verfahrens geeignete Geräte Maintenance procedures for servicing a switch and for the execution of the method suitable devices
01/18/2001DE19929756A1 Bearbeitung einer Anforderung an ein Operatorservice Processing a request to an operator service
01/18/2001DE19929753A1 Operating method for cellular mobile communication network
01/18/2001DE19929690A1 Verfahrne zum Konfigurieren von Benutzerrechten für eine Kommunikationsanlage Verfahrne to configure user rights for a communication system
01/18/2001DE19928341A1 Verfahren zur dreidimensionalen optischen Vermessung von Objektoberflächen A method for three-dimensional optical measurement of object surfaces
01/18/2001DE10010495A1 Verfahren zum Übermitteln von Informationen zwischen einer Vermittlungsstelle und zumindest einem daran angeschlossenen Kommunikationsendgerät, Verwendung des Verfahrens und Telekommunikationsnetz A method of communicating information between an exchange and at least one communications terminal connected thereto, using the method and telecommunication network
01/18/2001CA2379159A1 Method and system for exchanging information between multimedia network nodes
01/18/2001CA2378697A1 Network addressing system and method using telephone numbers
01/17/2001EP1069796A1 Method for contacting a subscriber to multiple wireless bearer services
01/17/2001EP1069789A1 Apparatus and transmitting method for visual caller information in mobile communication networks
01/17/2001EP1069786A2 Virtual transport server in a telecommunication network
01/17/2001EP1069751A1 Mobility management
01/17/2001EP1069545A1 Navigation method and network access server therefor
01/17/2001EP1068753A1 Communication method and apparatus improvements
01/17/2001EP1068745A1 Method in a telephone service for implementing queuing according to a desired charge
01/17/2001EP1068719A1 Automated fraud management in transaction-based networks
01/17/2001EP1068718A1 A method and an arrangement in a subscriber line interface circuit
01/17/2001EP1068717A1 Computer telephony integration
01/17/2001EP1068716A1 Call distribution
01/17/2001EP1068715A1 Automated and selective authentication in transaction-based networks
01/17/2001EP1068714A2 Redundant switching arrangement
01/17/2001EP1068713A1 System and method for locally intelligent and adaptive dialing of telephone and other network access numbers
01/17/2001EP1068693A1 System and method for transmitting voice and data using intelligent bridged tdm and packet buses
01/17/2001EP1020061A4 Text-to-speech e-mail reader with multi-modal reply processor
01/17/2001CN1280737A Telephone status notification system
01/17/2001CN1280736A Method and system for automatic answering and recording of massages in a telephone system
01/17/2001CN1280727A Security of data connections