Patents
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
07/1999
07/29/1999WO1999026424A3 Negotiated routing in telephony systems
07/29/1999WO1999026347A3 Method and apparatus for testing a subscriber line interface
07/29/1999WO1999020057A3 Arrangement in a telecommunication system, especially a personal communication system
07/29/1999WO1999009760A3 Transfer of calling party identification in a mobile communication system
07/29/1999DE19802323A1 Generation of data to be used in establishing a favorable telephone connection
07/29/1999CA2318914A1 Intelligent radio
07/29/1999CA2318861A1 Multi-language display keypad
07/29/1999CA2318832A1 Method for adjusting current levels, which have been corrupted by disturbance variables, in a subscriber line circuit
07/29/1999CA2318541A1 Computer telephony integrated pbx
07/29/1999CA2318530A1 Method and devices related to features or feature agent and method of controlling process flow between features
07/28/1999EP0932314A1 Device for identifying a called terminal from a plurality of user terminals connected to a telephone network switch, whereby the telephone network switch is connected to at least one fixed radiotelephone terminal
07/28/1999EP0932312A1 Private branch exchange
07/28/1999EP0931422A1 Method of preventing data inconsistency between master exchange data and backup exchange data
07/28/1999EP0931408A1 Multi-protocol telecommunications routing optimization
07/28/1999EP0931398A1 Telecommunications tandem system for circuit-based traffic
07/28/1999EP0931397A1 Method and system for a two-step dialing connection process providing an identification of a second terminal via the internet
07/28/1999CN1224559A Method and system for extended addressing plans
07/28/1999CN1224557A Communication path control device, communication path control method, and communication path control unit
07/28/1999CN1224315A Method for forwarding call at high penetration notification mode in satellite communication terminal
07/28/1999CN1224297A Radio switching equipment and circuit control method for radio switching equipment
07/27/1999US5930752 Audio interactive system
07/27/1999US5930723 Establishing an expanded group call in a mobile communication system
07/27/1999US5930711 Handoff test method between mobile communication switching stations
07/27/1999US5930709 Method of creating signal message common files for mobile switching center
07/27/1999US5930702 Personal mobility communication system
07/27/1999US5930701 Providing caller ID within a mobile telecommunications network
07/27/1999US5930700 System and method for automatically screening and directing incoming calls
07/27/1999US5930699 To provide a mobile station in a cellular telephone network access
07/27/1999US5930698 Method and apparatus for efficient law enforcement agency monitoring of telephone calls
07/27/1999US5930479 Communications addressing system
07/27/1999US5930351 Remote telephone ringer controller
07/27/1999US5930350 System, method and computer program for automated speed dialing
07/27/1999US5930347 Interruption of a call between two terminals by a call from another terminal
07/27/1999US5930346 Extended public switched telephone network architecture with enhanced subscriber control on call setup
07/27/1999US5930344 Method and apparatus for tracing a specific communication
07/27/1999US5930342 Asset management for copiers and facsimile machines
07/27/1999US5930341 ADSI web browser for retrieving internet data files
07/27/1999US5930339 Apparatus for processing a call
07/27/1999US5930337 Dynamic message-mailbox size variation
07/27/1999US5930336 Voice dialing server for branch exchange telephone systems
07/27/1999US5930335 Method and apparatus for tapping control in an electronic switching system
07/27/1999US5930334 Method and apparatus for monitoring the operation of telecommunications equipment
07/27/1999US5930333 Method and system for projecting service availability in a telecommunications system
07/27/1999US5930249 Process and routing system for dynamic traffic control in a communication network
07/27/1999US5930237 Video conference system with ATM cell reuse
07/27/1999US5930231 Block spectrum receiver for a broadband communications system
07/27/1999US5930101 Overvoltage cut-off circuit of private exchange branch having tie line
07/27/1999US5929898 Multi-point control unit for use in multi-point videoconference system capable of suppressing deterioration of picture quality on split screen
07/27/1999US5929897 Automated distribution of video telephone calls
07/27/1999US5928331 Distributed internet protocol-based real-time multimedia streaming architecture
07/27/1999US5928325 Method of dynamically establishing communication of incoming messages to one or more user devices presently available to an intended recipient
07/27/1999CA2195490C Merging the functions of switching and cross connect in telecommunications networks
07/27/1999CA2195437C Service node for a telephony network
07/27/1999CA2164550C Communication system using server
07/26/1999CA2257466A1 Device for identifying a called terminal from among numerous user terminals connected to one telephone switch, the said switch being linked to at least one fixed radiotelephone terminal
07/22/1999WO1999037102A2 Method and communication system for processing alarms using a management network involving several layers of management
07/22/1999WO1999037100A1 Method for establishing a telecommunication link and telecommunication system therefor
07/22/1999WO1999037081A1 Communications system
07/22/1999WO1999037080A1 Connection handling in communications networks
07/22/1999WO1999037079A1 Telecommunications networks
07/22/1999WO1999037078A1 Calling subscriber validation
07/22/1999WO1999037076A1 System and method for automatic pbx detection
07/22/1999WO1999037070A1 Communication system with automatic information and media conversion
07/22/1999WO1999037058A1 Internet telephony system with automated call answering
07/22/1999WO1999037038A1 Method for setting up echo suppression devices in communication links with automatic machines
07/22/1999WO1999036905A1 Information distributing apparatus, information transmitting apparatus, information receiving apparatus, and information distributing method
07/22/1999WO1999036862A1 Intelligent human/computer interface system
07/22/1999WO1999030514A3 Network management
07/22/1999WO1998041032A3 Method and apparatus for establishing a voice call to a pstn extension for a networked client computer
07/22/1999DE19801785A1 Alarm handling method for communication system with several management levels
07/22/1999DE19801563A1 Central message processing unit
07/22/1999DE19801498A1 Connection setting-up method for telecommunication network
07/22/1999DE19623912C1 Circuit configuration for identifying errors in telecommunication lines and cables
07/22/1999CA2317675A1 Intelligent human/computer interface system
07/21/1999EP0930767A2 Information transmitting and receiving apparatus
07/21/1999EP0930766A2 Systemfor digital radio communication between a wireless LAN an a PBX
07/21/1999EP0930765A2 Apparatus and method that allow telephone callers to leave longer messages
07/21/1999EP0930764A1 Arrangement for equalizing levels of service among skills
07/21/1999EP0930763A1 Service activation
07/21/1999EP0930755A1 Virtual reality networked system
07/21/1999EP0930752A2 Method for allocating data and power in a discrete multitone communication system
07/21/1999EP0929984A2 Method to restore subscriber related information in a communication network data base system
07/21/1999EP0929982A2 Method for connecting an incoming call in a wireless telecommunications installation to a dual mode terminal
07/21/1999EP0929980A1 Communication system consisting of at least two private branch exchanges (pbx) with team function
07/21/1999EP0929979A1 Communications system consisting of at least two private branch exchanges with team function
07/21/1999EP0929967A2 Remote supply circuitry
07/21/1999EP0929966A1 Method and apparatus for automated provisioning and billing of communication services
07/21/1999EP0929964A1 Communications system consisting of at least two private branch exchanges (pbx) with team function
07/21/1999EP0929963A1 Method for controlling a collective line configuration of a telecommunications installation
07/21/1999EP0929962A1 Voice-dialing system using model of calling behavior
07/21/1999EP0929884A2 Method for transmitting data in a telecommunications network and switch for implementing said method
07/21/1999EP0929880A1 Cashless payment by means of a mobile radio apparatus
07/21/1999EP0728375B1 Cooling a large microprocessor in a small module
07/21/1999EP0574523B1 Variable bit rate speech encoder
07/21/1999CN1223778A Call forwarding function for a portable radio communications device
07/21/1999CN1223774A Method and apparatus for providing different terminating call treatment based on service area
07/21/1999CN1223766A Improvements in or relating to call handling
07/21/1999CN1223528A Device for displaying faults in telephone distribution frame
07/21/1999CN1223520A Ringing signal identifying method and device
07/21/1999CN1223403A Redundant apparatus