Patents
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
04/1997
04/29/1997US5625680 Method and apparatus for prioritizing telephone calls
04/29/1997US5625676 Method and apparatus for monitoring a caller's name while using a telephone
04/29/1997US5625675 Voice mail communication system
04/29/1997US5625667 Method of predicting voltages in telephone line measurement
04/29/1997US5625407 Seamless multimedia conferencing system using an enhanced multipoint control unit and enhanced endpoint devices
04/29/1997US5625404 Method and system for accessing multimedia data over public switched telephone network
04/29/1997CA2114562C Fraud protection for card transactions
04/24/1997WO1997015137A1 A telecommunications switch
04/24/1997WO1997015136A1 Customer queuing arrangement
04/24/1997WO1997015135A1 Telephone isolation device
04/24/1997WO1997004542A3 Multipoint-to-point arbitration in a network switch
04/24/1997DE19539372A1 Subscriber equipment testing method for mobile communication system
04/23/1997EP0769883A2 Apparatus for radio local loop system
04/23/1997EP0769866A2 Automated voice mail/answering machine greeting system
04/23/1997EP0769232A2 Method for signalling the reason for break-off of a connection to a main unit
04/23/1997EP0769231A1 Voice over data modem with selectable voice compression
04/23/1997EP0769229A2 Universal demarcation point
04/23/1997EP0769227A1 Signal protection and monitoring system
04/23/1997EP0681772A4 A method and apparatus for audio teleconferencing a plurality of phone channels.
04/23/1997CN2253076Y Telephone automatic alarm
04/23/1997CN1148458A Updating subscriber data of a mobile communication system
04/23/1997CN1148317A Self-locking apparatus of rack for communication/transmission system
04/23/1997CN1148304A Multi number plan method in key phone system
04/22/1997US5623643 Telecommunication system with improved reconfiguration flexibility having first and second communication modules where new operating system is tested with isolated second communication modules
04/22/1997US5623590 Dynamic graphics arrangement for displaying spatial-time-series data
04/22/1997US5623544 Telephone headset interface circuit
04/22/1997US5623540 PBX data retrieval and reporting system and method
04/22/1997US5623539 Using voice signal analysis to identify authorized users of a telephone system
04/22/1997US5623537 Telephone message center
04/22/1997US5623536 Anonymous interactive telephone system
04/22/1997US5623535 Operations of cellular communications systems based on mobility and teletraffic statistics collected by mobile units
04/22/1997US5623532 Hardware and data redundant architecture for nodes in a communications system
04/22/1997US5623491 Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network
04/22/1997US5623490 Method and apparatus for multiple media digital communication system
04/22/1997US5623488 Call set-up server
04/22/1997US5623480 System and method for accessing embedded channels
04/22/1997US5623422 Method for prioritizing channels in a communication system
04/22/1997US5623388 For use on telephone lines
04/22/1997CA2081169C Telecommunication switching system having adaptive routing switching nodes
04/22/1997CA2081037C Common channel signaling message intercept system
04/22/1997CA2062107C Switch control methods and apparatus
04/17/1997WO1997014255A2 Efficient communication through networks
04/17/1997WO1997014243A1 Improved architecture for voice messaging systems
04/17/1997WO1997014242A2 Method for optimizing the use of urban telephone lines
04/17/1997WO1997014238A1 Method and aparatus for transmitting and routing voice telephone calls over a packet switched computer network
04/17/1997WO1997014234A2 Point-to-point internet protocol
04/17/1997WO1997014222A1 Personal audio message processor and method
04/17/1997WO1997014124A1 System for facilitating the ordering and paying of services by means of a communication network
04/17/1997WO1997008881A3 Telecommunication system
04/17/1997WO1997004543A3 Allocated and dynamic switch flow control
04/17/1997DE19532929A1 Error message overload prevention for communications network
04/17/1997CA2207055A1 Method for optimizing the use of urban telephone lines
04/16/1997EP0768788A2 Completion of calls to a preferred agent in an automatic call distributor
04/16/1997EP0768787A2 Call overflow system and method for an automatic call distribution system
04/16/1997EP0768785A2 Telephone apparatus with programming means for dialing of caller ID block code and receiving call waiting caller-ID-signal
04/16/1997EP0768784A2 Circuit arrangement for displaying information characterising the status of the switching network
04/16/1997EP0767997A1 System for a private branch communications exchange to activate a night switching configuration
04/16/1997EP0767993A1 Spread-spectrum changeable base station
04/16/1997EP0767936A1 Micro personal digital assistant
04/16/1997EP0711485B1 Method for providing user controlled call management services
04/16/1997CN1147871A A method and apparatus for providing a human-machine dialog supportable by operator intervention
04/16/1997CN1147749A System and method for establishing communications over network
04/16/1997CN1147747A System and method for establishing communications with mobileparty
04/16/1997CN1147740A Chip for detecting telephone signals with digital signal processor and performing digital communication
04/15/1997US5621854 Method and apparatus for objective speech quality measurements of telecommunication equipment
04/15/1997US5621790 Method and system for optimization of telephone contact campaigns
04/15/1997US5621789 Method and system for integrating a plurality of call center agent performance enhancement modules
04/15/1997US5621783 Method and an arrangement relating to telecommunications systems
04/15/1997US5621782 Test interface adapter emulating on test trunk interface for non-standard central office switch
04/15/1997US5621731 Private exchange for ISDN
04/15/1997US5621727 Communications system
04/15/1997US5621720 Multichannel alignment system and method
04/15/1997US5621670 Communication service simulator and a communication service specification verifying method
04/15/1997US5621664 Monitoring system status
04/15/1997US5621602 Surge protector
04/15/1997CA2055828C Arbitrary selecting of a terminal to be called in key telephone systems
04/10/1997WO1997013389A1 Providing services in a telecommunications network
04/10/1997WO1997013382A1 Methods and apparatus for providing communications to telecommunications terminals
04/10/1997WO1997013352A1 Methods and apparatus for originating voice calls
04/10/1997WO1997013329A2 Methods and apparatus for automating contact closure
04/10/1997WO1997008879A3 Terminal
04/09/1997EP0767596A2 Multimedia distribution system
04/09/1997EP0767572A2 Method for obtaining billing validation of directory number accounts from line identification databases in a telecommunications network
04/09/1997EP0767568A2 Method and apparatus for processing telephone calls
04/09/1997EP0767567A2 Method for the evaluation of call numbers for incoming communication
04/09/1997EP0766903A1 Access network
04/09/1997EP0766898A1 Call setup and service invocation in telecommunications networks
04/09/1997EP0649586B1 Hotel interactive communication apparatus
04/09/1997CN1147329A Broadband switching network
04/09/1997CN1147322A Expandable telecommunications system
04/09/1997CN1147172A Method and telecommunications network for control of mass calling
04/09/1997CN1147112A Method of controlling message overload of unit program in multi processor controlling system
04/08/1997US5619659 System for extending ISA bus without using dedicated device driver software by using E2 P2 interface which provides multiplexed bus signal through standard parallel port connector
04/08/1997US5619567 Variable DC feed characteristic in a subscriber line interface circuit
04/08/1997US5619565 Voice activity detection method and apparatus using the same
04/08/1997US5619562 Method and system for remotely activating/changing subscriber services in a public switched telephone network
04/08/1997US5619561 Call-waiting and caller identification with three-way conversations arrangements
04/08/1997US5619557 Telephone switching system and method for controlling incoming telephone calls to remote agents and for collecting and providing call data
04/08/1997US5619556 Automated telecommunication peripheral system
04/08/1997US5619555 Graphical computer interface for an audio conferencing system