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)
09/1998
09/03/1998WO1998038769A2 Frame alignment of test signals in a communication system
09/03/1998WO1998038600A1 System and method for locating individuals and equipment, airline reservation system, communication system
09/03/1998WO1998027711A3 Intelligent services network test system
09/03/1998WO1998026570A3 Communications system and method for testing of a communications apparatus
09/03/1998WO1998024221A3 Method for measuring qualitative parameters of a permanently connected message transmission link
09/03/1998WO1998023058A3 System for integrated management of messaging and communications
09/03/1998WO1998021864A3 Method of and system for call routing compliant with regulatory routing requirements
09/03/1998WO1998019490A3 A method of providing a delayed connection announcement to a mobile subscriber within a radio telecommunication system
09/03/1998WO1997031472A3 Method and system for the secure communication of data
09/03/1998DE19706794A1 Program-controlled private exchange system
09/03/1998DE19706781A1 Communications system with secured, remote access to special service procedure
09/03/1998CA2282580A1 Procedure for releasing connections
09/03/1998CA2281557A1 System and method for monitoring calls parked on an automatic call distributor
09/02/1998EP0862347A2 Method and device for transmission of alphanumeric characters between at least two telecommunication terminals
09/02/1998EP0862342A2 Mobile paging telephone with an automatic call back function
09/02/1998EP0862341A2 Telecommunication system with loop-free switching tables
09/02/1998EP0862310A2 Self-contained apparatus and method of monitoring telecommunications equipment
09/02/1998EP0862282A1 Method of providing a voice mail service for mobile subscribers in a telephone network
09/02/1998EP0862197A1 Safety plug
09/02/1998EP0862104A2 Authentication system using network
09/02/1998EP0861567A1 Transmitting subscriber identity in mobile communication system
09/02/1998EP0861565A1 Data service in a mobile communication network
09/02/1998EP0861554A1 Reverse call origination via a non-signaling network
09/02/1998EP0861553A1 System and method for providing a remote user with a virtual presence to an office
09/02/1998EP0861531A1 Acoustic echo elimination in a digital mobile communications system
09/02/1998EP0861526A1 Method and apparatus for informing a remote unit of a feature-originated call
09/02/1998EP0761067B1 Connection release in a telecommunications system
09/02/1998EP0649585B1 Switching arrangement for a communications channel
09/02/1998EP0642722A4 Call processing control system.
09/02/1998CN1192309A Assessment of signal quality
09/02/1998CN1192115A Time division switching device for electronic exchange system
09/02/1998CN1192107A Register signaling control method
09/02/1998CN1192097A Method and apparatus for conferencing in expandable telecommunications system
09/02/1998CN1192094A Redundancy, expanded switching capacity and fault isolation arrangements for expandable telecommunications system
09/01/1998US5802526 System and method for graphically displaying and navigating through an interactive voice response menu
09/01/1998US5802510 Universal directory service
09/01/1998US5802502 System for selective communication connection based on transaction pricing signals
09/01/1998US5802466 Personal communication device voice mail notification apparatus and method
09/01/1998US5802314 Method and apparatus for sending and receiving multimedia messages
09/01/1998US5802294 Teleconferencing system in which location video mosaic generator sends combined local participants images to second location video mosaic generator for displaying combined images
09/01/1998US5802283 Method and system for accessing multimedia data over public switched telephone network
09/01/1998US5802281 System for communicating with a communication channel
09/01/1998US5802177 Apparatus for radio local loop system
09/01/1998US5802169 System and method for transmission system automatic impedance matching
09/01/1998US5802166 Dual signal triggered message waiting notification system for indicating storage of different types of messages awaiting retrieval
09/01/1998US5802164 Systems and methods for controlling telephone sound enhancement on a per call basis
09/01/1998US5802163 Methods and apparatus for implementing an outbound network call center
09/01/1998US5802162 Method for selectively changing the call handling capacity of a telecommunications switch
09/01/1998US5802161 Method and system for optimized scheduling
09/01/1998US5802160 Method for providing telephone service
09/01/1998US5802159 Method and apparatus for providing a customized telecommunication service
09/01/1998US5802158 Method and apparatus for providing an alarm call to a remotely located user using a DISA line in a private exchange
09/01/1998US5802157 Method and apparatus for controlling outgoing calls on a telephone line
09/01/1998US5802156 Method for billing and controlling fraud in providing pay information services
09/01/1998US5802150 Communication control board with audio functions
09/01/1998US5802149 On-line training of an automated-dialing directory
09/01/1998US5802147 System and method for notifying a user of awaiting messages
09/01/1998US5802146 Maintenance operations console for an advanced intelligent network
09/01/1998US5802144 Minimum common span network outage detection and isolation
09/01/1998US5802143 Identification of damaged cable pairs in a telecommunications network and restoration of telephone service to subscribers
09/01/1998US5802142 Data correction system for communications network
09/01/1998US5802141 Electronic private branch exchange
09/01/1998US5802045 Method of using a narrowband server to provide service features to broadband subscribers
09/01/1998CA2147673C Apparatus for use in isolating the cause of a dropped telecommunication call
09/01/1998CA2126928C Ringdown and ringback signalling for a computer-based multifunction personal communications system
08/1998
08/27/1998WO1998037716A2 Method for preparing announcements and appropriate telecommunications network
08/27/1998WO1998037712A2 Alternate routing for calls requiring monitoring
08/27/1998WO1998037704A2 Intelligent e-mail interface
08/27/1998WO1998037688A2 Service node for providing telecommunication services
08/27/1998WO1998037687A1 Apparatus and methods enhancing call routing to and within call-centers
08/27/1998WO1998037686A1 Network call parking manager
08/27/1998WO1998037685A2 Delivery of announcements to a user of a communications system when roaming in a network away from the user's home network
08/27/1998WO1998037680A2 E-mail server for message filtering and routing
08/27/1998WO1998037678A2 An electronic voice mail message handling system
08/27/1998WO1998037677A2 A personal desktop router
08/27/1998WO1998037659A2 Method and apparatus for offering additional product functions to a user
08/27/1998WO1998037648A1 Video, data and telephony gateway
08/27/1998WO1998037489A1 Third party verification system and method
08/27/1998WO1998026564A3 Procedure for the transmission of a subscriber number
08/27/1998WO1998024222A3 Software fault management system
08/27/1998WO1998023102A3 Personal computer control and activation device
08/27/1998WO1998023095A3 System and method for interfacing a local communication device
08/27/1998WO1998023075A3 Multimedia teleconferencing bridge
08/27/1998WO1998017049A3 Methods and apparatus for paging systems
08/27/1998WO1998011709A3 Conference calling system and method for a wireless communications channel
08/27/1998DE19706780A1 Program-controlled private exchange system
08/27/1998DE19706779A1 Communications system with automatic billing for service
08/27/1998DE19705794C1 Verfahren zur Unterstützung des Mobilitätsmanagements für ein mobiles Endgerät in einem Festnetz mit Endgerätemobilität The method for supporting mobility management for a mobile terminal in a fixed network with device mobility
08/27/1998CA2282502A1 E-mail server for message filtering and routing
08/27/1998CA2282500A1 Intelligent e-mail interface
08/27/1998CA2281926A1 Method and apparatus for offering additional product functions to a user
08/27/1998CA2281906A1 Third party verification system and method
08/27/1998CA2280002A1 Apparatus and methods enhancing call routing to and within call-centers
08/26/1998EP0861010A2 Method for determining the spatial distribution of the traffic load in a mobile communication system
08/26/1998EP0861007A2 Call routing in a private branch communications system
08/26/1998EP0861006A1 A service of a telecommunication system and service device realising such a service
08/26/1998EP0860974A2 Service unit for supporting call setup and switching exchange, service control device, communication network and method for call setup
08/26/1998EP0860973A2 Communication system, especially private communication system with program controlled procedures for services
08/26/1998EP0860967A1 Technique for detecting modem devices to enhance computer network security
08/26/1998EP0860956A2 Bridge between subscriber access points and home network
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