Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 3 - Automatic or semi-automatic exchanges
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
04/2002
04/02/2002US6366577 Method for providing IP telephony with QoS using end-to-end RSVP signaling
04/02/2002US6366575 Extended access for automatic call distributing system
04/02/2002US6366554 Multi-carrier transmission systems
04/02/2002CA2256898C Reducing crosstalk between communications systems
04/02/2002CA2233452C Customer queuing arrangement
04/02/2002CA2229349C Multi-hop telecommunications systems
04/02/2002CA2046579C Routing autonomy subscriber branching unit for an intelligent structure telecommunication network
03/2002
03/29/2002CA2355008A1 System and method for using a phone to access information in a call center
03/28/2002WO2002025986A1 Subscriber profile matching and positioning system for mobile units in a communication system
03/28/2002WO2002025985A1 International mobile communication roaming servicing system over the internet protocol
03/28/2002WO2002025960A1 Method for operating a communications system
03/28/2002WO2002025920A1 Telephone communication system and method over local area network wiring
03/28/2002WO2002025919A1 Audio program delivery system
03/28/2002WO2002025917A1 System for and method of extending a pbx phone port to a remote phone device
03/28/2002WO2002025916A1 Group audio message board
03/28/2002WO2002025915A2 Communications installation and method for operating a communications system
03/28/2002WO2002025914A1 Method of and system for determining the status of the voltage of a telephone line
03/28/2002WO2002025913A1 A system providing control of a function via telephone network
03/28/2002WO2002025912A2 Simultaneous telephone ring system
03/28/2002WO2002025911A2 Direct ring telephone apparatus and method
03/28/2002WO2002025910A2 System for telecommunication between deaf and normal telephone subscribers
03/28/2002WO2002025909A2 Smart transfer
03/28/2002WO2002025908A2 Packet-based conferencing
03/28/2002WO2002025907A1 Virtual pbx
03/28/2002WO2002025899A1 Internet protocol telephony security architecture
03/28/2002WO2002025892A2 An apparatus for facilitating realtime information interexchange between a telecommunications network and a service provider
03/28/2002WO2002025871A2 Low level mobility management procedures.
03/28/2002WO2002025827A1 Distributed media on-demand information service
03/28/2002WO2002007460A8 A system and method for context association
03/28/2002WO2001095063A3 MANAGEMENT AND CONTROL OF A PRIVATE VoIP NETWORK
03/28/2002WO2001060079A3 Switching center and method for forwarding status information
03/28/2002WO2001054371A3 Method, system for transmitting data from a transmitter to a receiver and transmitter or receiver
03/28/2002WO2001043348A3 Method for transmitting electronic postal messages
03/28/2002US20020038362 Apparatus for facilitating realtime information interexchange between a telecommunications network and a service provider
03/28/2002US20020038353 Weather information delivery system and method thereof
03/28/2002US20020038219 Matching and communication method and system
03/28/2002US20020038212 Telephony system with subtitles and/or translation
03/28/2002US20020037720 Method for enabling receipt of a packet-switched page by a mobile station
03/28/2002US20020037717 Method for operating a preferably mobile telecommunication system
03/28/2002US20020037713 Service searching system
03/28/2002US20020037077 Telephone terminal base
03/28/2002US20020037076 In-band signaling for routing
03/28/2002US20020037075 Provisioning of subscriber services
03/28/2002US20020037074 Method and apparatus for relaying communication
03/28/2002US20020037073 Machine assisted system for processing and responding to requests
03/28/2002US20020037072 Group audio message board
03/28/2002US20020037004 Home gateway system and method
03/28/2002US20020037002 VoIP gateway device and digital one-link tandem exchange method
03/28/2002US20020036991 Communication system using access control for mobile terminals with respect to local network
03/28/2002US20020036892 Amplifier
03/28/2002DE19931237C2 Verfahren und Testanordnung zum Testen von Leistungsmerkmalen von Kommunikationsanlagen Method and testing arrangement for testing performance characteristics of communication equipment
03/28/2002DE10143758A1 Gateway-System mit Redundanzstruktur von Medien-Gateway-Steuerungen Gateway system with redundancy structure of media gateway controllers
03/28/2002DE10134907A1 Verfahren, System und Komponenten zur Kommunikation von Informationen über Einrichtungen Method, system and components for communicating information about facilities
03/28/2002DE10046252A1 Verfahren und Vorrichtung zur Abfrage der eingerichteten Rufnummern eines Anschlusses Method and apparatus for sensing the configured call numbers of a terminal
03/28/2002DE10046208A1 Voice filter system for a telephone network which categorises voice messages
03/28/2002DE10045246A1 Verfahren zum Einrichten einer Umleitung an einem Kommunikationsendgerät Procedures to set up a redirect to a communication terminal
03/28/2002DE10032756A1 Telekommunikationsnetz Telecommunications network
03/28/2002CA2696658A1 Telephone communication system and method over local area network wiring
03/28/2002CA2422448A1 Packet-based conferencing
03/28/2002CA2421628A1 Internet protocol telephony security architecture
03/27/2002EP1191803A1 Method and system for detecting network states of a hierarchically structured network comprising network elements on at least two layers
03/27/2002EP1191802A2 Weather information delivery system and method
03/27/2002EP1191772A2 Presenting a script to be followed by a call center agent during a conversation with a customer
03/27/2002EP1191771A2 Method for authenticating a user in a telecommunication network
03/27/2002EP1191746A2 Method for operating a preferably mobile telecommunication system
03/27/2002EP1190591A1 Arranging control signallings in telecommunication system
03/27/2002EP1190589A1 Resource management and traffic control in time-division-duplex communication systems
03/27/2002EP1190583A1 Short message service support over a packet-switched telephony network
03/27/2002EP1190581A1 Processing a request to an operator service
03/27/2002EP1190559A1 Method and system for notifying a caller that a cellular phone destination is available
03/27/2002EP1190558A1 Call sequence adaptation by analysing the history of previous communication sequences
03/27/2002EP1190556A1 Method and system for detecting an isolated node in a communications network
03/27/2002EP1190554A1 Interface class discovery method and device
03/27/2002EP1190339A2 Apparatus and method for interpreting and intelligently managing electronic messages
03/27/2002EP1190328A1 A system and method for supporting multiple vendor telephony hardware on a computing platform
03/27/2002EP1050150B1 Telecommunications networks
03/27/2002EP1012997B1 Method of and device for measuring echo parameters on telephone lines
03/27/2002EP0845193B1 Cellular communications system with screening of unauthorized services
03/27/2002EP0705522B1 Multinetwork terminal
03/27/2002CN1342381A Method of allocating access rights to telecommunications channel to subscriber stations of telecommunications network and subscriber station
03/27/2002CN1342375A Arrangement for improving speech quality, especially for voice over IP calls
03/27/2002CN1342294A Bidirectional real-time advertisement system
03/27/2002CN1342290A Conversational browser and conversational systems
03/27/2002CN1342016A Method for implement called party pay service
03/27/2002CN1081875C Communication apparatus
03/27/2002CN1081868C Improved trouble alarm collecting device for electronic telephone exchanger
03/27/2002CN1081863C Personalized information service system
03/27/2002CN1081861C Multimedia communication control equipment communication system and communication control method
03/26/2002US6363498 Method and apparatus to automatically back up switching system files
03/26/2002US6363430 Methods and systems for providing an absent addressing service to customers in a communications network
03/26/2002US6363421 Method for computer internet remote management of a telecommunication network element
03/26/2002US6363411 Intelligent network
03/26/2002US6363346 Call distribution system inferring mental or physiological state
03/26/2002US6363339 Dynamic vocoder selection for storing and forwarding voice signals
03/26/2002US6363335 Communications bridge for circuit switched data transfer simulation
03/26/2002US6363258 Communications system providing call type indication for group calls
03/26/2002US6363248 Intelligent cellular forwarding system
03/26/2002US6363151 Method and system for subscriber authentification and/or encryption of items of information
03/26/2002US6363145 Apparatus and method for automated voice analysis in ACD silent call monitoring
03/26/2002US6363143 Graphical and schedule-based definition of a call-coverage path
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