Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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04/29/1997 | US5625680 Method and apparatus for prioritizing telephone calls |
04/29/1997 | US5625676 Method and apparatus for monitoring a caller's name while using a telephone |
04/29/1997 | US5625675 Voice mail communication system |
04/29/1997 | US5625667 Method of predicting voltages in telephone line measurement |
04/29/1997 | US5625407 Seamless multimedia conferencing system using an enhanced multipoint control unit and enhanced endpoint devices |
04/29/1997 | US5625404 Method and system for accessing multimedia data over public switched telephone network |
04/29/1997 | CA2114562C Fraud protection for card transactions |
04/24/1997 | WO1997015137A1 A telecommunications switch |
04/24/1997 | WO1997015136A1 Customer queuing arrangement |
04/24/1997 | WO1997015135A1 Telephone isolation device |
04/24/1997 | WO1997004542A3 Multipoint-to-point arbitration in a network switch |
04/24/1997 | DE19539372A1 Subscriber equipment testing method for mobile communication system |
04/23/1997 | EP0769883A2 Apparatus for radio local loop system |
04/23/1997 | EP0769866A2 Automated voice mail/answering machine greeting system |
04/23/1997 | EP0769232A2 Method for signalling the reason for break-off of a connection to a main unit |
04/23/1997 | EP0769231A1 Voice over data modem with selectable voice compression |
04/23/1997 | EP0769229A2 Universal demarcation point |
04/23/1997 | EP0769227A1 Signal protection and monitoring system |
04/23/1997 | EP0681772A4 A method and apparatus for audio teleconferencing a plurality of phone channels. |
04/23/1997 | CN2253076Y Telephone automatic alarm |
04/23/1997 | CN1148458A Updating subscriber data of a mobile communication system |
04/23/1997 | CN1148317A Self-locking apparatus of rack for communication/transmission system |
04/23/1997 | CN1148304A Multi number plan method in key phone system |
04/22/1997 | US5623643 Telecommunication system with improved reconfiguration flexibility having first and second communication modules where new operating system is tested with isolated second communication modules |
04/22/1997 | US5623590 Dynamic graphics arrangement for displaying spatial-time-series data |
04/22/1997 | US5623544 Telephone headset interface circuit |
04/22/1997 | US5623540 PBX data retrieval and reporting system and method |
04/22/1997 | US5623539 Using voice signal analysis to identify authorized users of a telephone system |
04/22/1997 | US5623537 Telephone message center |
04/22/1997 | US5623536 Anonymous interactive telephone system |
04/22/1997 | US5623535 Operations of cellular communications systems based on mobility and teletraffic statistics collected by mobile units |
04/22/1997 | US5623532 Hardware and data redundant architecture for nodes in a communications system |
04/22/1997 | US5623491 Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network |
04/22/1997 | US5623490 Method and apparatus for multiple media digital communication system |
04/22/1997 | US5623488 Call set-up server |
04/22/1997 | US5623480 System and method for accessing embedded channels |
04/22/1997 | US5623422 Method for prioritizing channels in a communication system |
04/22/1997 | US5623388 For use on telephone lines |
04/22/1997 | CA2081169C Telecommunication switching system having adaptive routing switching nodes |
04/22/1997 | CA2081037C Common channel signaling message intercept system |
04/22/1997 | CA2062107C Switch control methods and apparatus |
04/17/1997 | WO1997014255A2 Efficient communication through networks |
04/17/1997 | WO1997014243A1 Improved architecture for voice messaging systems |
04/17/1997 | WO1997014242A2 Method for optimizing the use of urban telephone lines |
04/17/1997 | WO1997014238A1 Method and aparatus for transmitting and routing voice telephone calls over a packet switched computer network |
04/17/1997 | WO1997014234A2 Point-to-point internet protocol |
04/17/1997 | WO1997014222A1 Personal audio message processor and method |
04/17/1997 | WO1997014124A1 System for facilitating the ordering and paying of services by means of a communication network |
04/17/1997 | WO1997008881A3 Telecommunication system |
04/17/1997 | WO1997004543A3 Allocated and dynamic switch flow control |
04/17/1997 | DE19532929A1 Error message overload prevention for communications network |
04/17/1997 | CA2207055A1 Method for optimizing the use of urban telephone lines |
04/16/1997 | EP0768788A2 Completion of calls to a preferred agent in an automatic call distributor |
04/16/1997 | EP0768787A2 Call overflow system and method for an automatic call distribution system |
04/16/1997 | EP0768785A2 Telephone apparatus with programming means for dialing of caller ID block code and receiving call waiting caller-ID-signal |
04/16/1997 | EP0768784A2 Circuit arrangement for displaying information characterising the status of the switching network |
04/16/1997 | EP0767997A1 System for a private branch communications exchange to activate a night switching configuration |
04/16/1997 | EP0767993A1 Spread-spectrum changeable base station |
04/16/1997 | EP0767936A1 Micro personal digital assistant |
04/16/1997 | EP0711485B1 Method for providing user controlled call management services |
04/16/1997 | CN1147871A A method and apparatus for providing a human-machine dialog supportable by operator intervention |
04/16/1997 | CN1147749A System and method for establishing communications over network |
04/16/1997 | CN1147747A System and method for establishing communications with mobileparty |
04/16/1997 | CN1147740A Chip for detecting telephone signals with digital signal processor and performing digital communication |
04/15/1997 | US5621854 Method and apparatus for objective speech quality measurements of telecommunication equipment |
04/15/1997 | US5621790 Method and system for optimization of telephone contact campaigns |
04/15/1997 | US5621789 Method and system for integrating a plurality of call center agent performance enhancement modules |
04/15/1997 | US5621783 Method and an arrangement relating to telecommunications systems |
04/15/1997 | US5621782 Test interface adapter emulating on test trunk interface for non-standard central office switch |
04/15/1997 | US5621731 Private exchange for ISDN |
04/15/1997 | US5621727 Communications system |
04/15/1997 | US5621720 Multichannel alignment system and method |
04/15/1997 | US5621670 Communication service simulator and a communication service specification verifying method |
04/15/1997 | US5621664 Monitoring system status |
04/15/1997 | US5621602 Surge protector |
04/15/1997 | CA2055828C Arbitrary selecting of a terminal to be called in key telephone systems |
04/10/1997 | WO1997013389A1 Providing services in a telecommunications network |
04/10/1997 | WO1997013382A1 Methods and apparatus for providing communications to telecommunications terminals |
04/10/1997 | WO1997013352A1 Methods and apparatus for originating voice calls |
04/10/1997 | WO1997013329A2 Methods and apparatus for automating contact closure |
04/10/1997 | WO1997008879A3 Terminal |
04/09/1997 | EP0767596A2 Multimedia distribution system |
04/09/1997 | EP0767572A2 Method for obtaining billing validation of directory number accounts from line identification databases in a telecommunications network |
04/09/1997 | EP0767568A2 Method and apparatus for processing telephone calls |
04/09/1997 | EP0767567A2 Method for the evaluation of call numbers for incoming communication |
04/09/1997 | EP0766903A1 Access network |
04/09/1997 | EP0766898A1 Call setup and service invocation in telecommunications networks |
04/09/1997 | EP0649586B1 Hotel interactive communication apparatus |
04/09/1997 | CN1147329A Broadband switching network |
04/09/1997 | CN1147322A Expandable telecommunications system |
04/09/1997 | CN1147172A Method and telecommunications network for control of mass calling |
04/09/1997 | CN1147112A Method of controlling message overload of unit program in multi processor controlling system |
04/08/1997 | US5619659 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 |
04/08/1997 | US5619567 Variable DC feed characteristic in a subscriber line interface circuit |
04/08/1997 | US5619565 Voice activity detection method and apparatus using the same |
04/08/1997 | US5619562 Method and system for remotely activating/changing subscriber services in a public switched telephone network |
04/08/1997 | US5619561 Call-waiting and caller identification with three-way conversations arrangements |
04/08/1997 | US5619557 Telephone switching system and method for controlling incoming telephone calls to remote agents and for collecting and providing call data |
04/08/1997 | US5619556 Automated telecommunication peripheral system |
04/08/1997 | US5619555 Graphical computer interface for an audio conferencing system |