Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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12/16/1997 | US5699421 Telephone answering device with low cost dual tone multi-frequency detector |
12/16/1997 | US5699419 Analog multibutton telephone keysets |
12/16/1997 | US5699418 Circuit for processing telephone signaling information |
12/16/1997 | US5699417 Text transmission using DTMF signalling |
12/16/1997 | US5699414 Method and apparatus for sharing a single telephone line between a facsimile machine, data modem, telephone answering device, and a person |
12/16/1997 | US5699410 Automatic telephone answering apparatus |
12/16/1997 | US5699409 Cordless telephone system for providing set-up communications between subsidiary units through a master unit |
12/16/1997 | US5699406 Arrangement for securing the SIM card in a mobile telephone |
12/16/1997 | US5697808 Battery adapter for adapting a large capacity battery to a hand phone |
12/16/1997 | US5697124 Hinge mechanism for foldable electronic apparatus |
12/13/1997 | CA2178844A1 Hands-free phone clip |
12/11/1997 | WO1997047147A1 Multi-mode communication network with handset-selected channel assignments |
12/11/1997 | WO1997047125A1 Multi-mode communication network with handset-assisted cordless base station activation |
12/11/1997 | WO1997047124A1 Method and apparatus for managing client-server communications |
12/11/1997 | WO1997047121A2 Personal information manager for updating a telecommunication subscriber profile |
12/11/1997 | WO1997047120A2 Method and apparatus for providing telecommunications services |
12/11/1997 | WO1997047117A1 Communications terminal having a single transducer for handset and handsfree receive functionality |
12/11/1997 | DE19721071A1 Telephone dialling method using electronic notebook |
12/11/1997 | DE19649588A1 Telephone- or facsimile-based alerting system for situations of risk or anxiety |
12/11/1997 | DE19622603A1 Mobile telephone with voice controlled menu |
12/11/1997 | DE19622366A1 ISDN telephone with two wire connection |
12/11/1997 | DE19621768A1 Telefon mit Aufnahmevorrichtung für eine Telefonspeicherkarte und Verfahren zum Übertragen von Daten einer Telefonspeicherkarte Telephone with holding device for a telephone memory card and method for transmitting data from a telephone memory card |
12/11/1997 | CA2207529A1 Apparatus and method for providing a telephone user with control of the threshold volume at which the user's voice will take control of a half-duplex speakerphone conversation |
12/10/1997 | EP0812120A2 Method for using services offered by a telecommunication network, a telecommunication system and a terminal for it |
12/10/1997 | EP0812096A2 Method and apparatus for managing communications between a client and a server in a network |
12/10/1997 | EP0812095A2 Communication terminal apparatus and mobile telephone battery for supplying power thereto |
12/10/1997 | EP0812094A1 Telecommunication end user device |
12/10/1997 | EP0812093A2 Telephone set |
12/10/1997 | EP0811964A2 Noise-reduced speech apparatus and noise-reduced speech method |
12/10/1997 | EP0811906A1 Speech segmentation |
12/10/1997 | EP0811301A1 Apparatus and method for adaptively precompensating for loudspeaker distortions |
12/10/1997 | EP0811288A1 Apparatus and method for canceling acoustic echoes including non-linear distortions in loudspeaker telephones |
12/10/1997 | CN2270325Y Intelligent telephone supervisor |
12/10/1997 | CN2270324Y Apparatus for preventing unauthorised calling by phone line |
12/10/1997 | CN2270323Y Phone recording anti-theft connector |
12/10/1997 | CN2270322Y Health phone capable of remote metering electrocardiograph |
12/10/1997 | CN2270321Y Portable line testing phone |
12/10/1997 | CN2270320Y Acoustooptic ringing phone |
12/10/1997 | CN1167415A Radio communication device with autenna trigger switch |
12/10/1997 | CN1167414A Multiple-mode mobile telephone |
12/10/1997 | CN1167413A Communication equipment and method |
12/10/1997 | CN1167392A Phonetic dial device for telephone |
12/10/1997 | CN1167391A Noise-reducing talking device and method |
12/10/1997 | CN1167390A Portable communication device |
12/10/1997 | CN1036690C Strongthening structure for telephone handset and movable base thereof |
12/09/1997 | US5697062 Method and apparatus for improved link establishment and monitoring in a communications system |
12/09/1997 | US5697060 Portable voice message terminal capable of transmitting pre-set text-based information |
12/09/1997 | US5696819 Speech communication apparatus |
12/09/1997 | US5696817 Apparatus and method for determining the source of a telephone communication |
12/09/1997 | US5696815 In an integrated network |
12/09/1997 | US5696814 Audio system for a personal computer |
12/09/1997 | US5696813 Telephone set |
12/09/1997 | US5696812 Data communication apparatus having a function of recording a voice into a memory |
12/09/1997 | US5696810 Telephone line monitor/alarm |
12/09/1997 | US5696660 Line current protection circuit for use with a PCMCIA-architecture modem card |
12/09/1997 | US5696496 Portable messaging and scheduling device with homebase station |
12/09/1997 | US5695361 Low profile communications outlet |
12/09/1997 | CA2104270C Method and apparatus for facilitating the making of card calls |
12/09/1997 | CA2083712C Control apparatus for a mobile radiotelephone |
12/04/1997 | WO1997045995A1 Arrangement for suppressing an interfering component of an input signal |
12/04/1997 | WO1997045897A1 Elastomeric contact |
12/04/1997 | DE19719491A1 Spitzenstrom-Reduktion in einem schnurlosen Telefon-Handgerät Peak current reduction in a cordless telephone handset |
12/04/1997 | DE19717985A1 Telephone ringing volume control method |
12/04/1997 | DE19629535A1 Mobile telephone e.g. for monitoring sleeping children |
12/04/1997 | CA2253326A1 Elastomeric contact |
12/03/1997 | EP0810812A2 Differential microphone assembly with passive suppression of resonances |
12/03/1997 | EP0810762A2 Telephone apparatus with recording function |
12/03/1997 | EP0810722A2 Mobile telephone set with automatic level control means of sound signal |
12/03/1997 | EP0810559A2 Security access system |
12/03/1997 | EP0809916A1 A method for using applications in a mobile station, a mobile station, and a system for effecting payments |
12/03/1997 | EP0809914A1 Method and structure for detecting a customer premises equipment alerting signal |
12/03/1997 | EP0809907A1 CALLER ID AND CALL WAITING FOR MULTIPLE CPEs ON A SINGLE TELEPHONE LINE |
12/03/1997 | EP0809906A1 Very low power cordless headset system |
12/03/1997 | EP0809894A1 Portable handset for tdd/fdd wireless communication |
12/03/1997 | EP0809893A1 Echo canceller having kalman filter for optimal adaptation |
12/03/1997 | EP0809841A1 Voice activity detection |
12/03/1997 | EP0786184A4 Methods and apparatus for encoding and decoding data transmitted over telephone lines |
12/03/1997 | EP0605549B1 Handsfree telephone apparatus |
12/03/1997 | CN2269679Y Voice switching telephone set |
12/03/1997 | CN2269678Y Monolithic anti-fraudulent use and anti-interception protector for telephone |
12/03/1997 | CN2269677Y Portable mobile telephone with cord |
12/03/1997 | CN1166902A Cellular phone of disposable type |
12/03/1997 | CN1166770A Peak current reduction in cordless telephone handset |
12/03/1997 | CN1166767A Speaker assembly for radiotelephone |
12/03/1997 | CN1166766A Portable telephone apparatus with paging |
12/03/1997 | CN1166756A Selective call receiver |
12/03/1997 | CN1166741A Cordless telephone apparatus switchable between desktop and wall mount modes |
12/03/1997 | CN1166731A Wireless communciation set having backlighted display |
12/02/1997 | US5694467 Integrated sound/telephone headset system |
12/02/1997 | US5694464 Automated access telephone system |
12/02/1997 | US5694461 Method for controlling long distance calling using a multi-frequency receiver |
12/02/1997 | US5694460 Circuit and method for reducing common mode interference in telephone instruments |
12/02/1997 | US5694453 Method and apparatus for processing telephone calls and delivering information about the calls to a pager |
12/02/1997 | US5694452 Emergency telecommunication device |
12/02/1997 | US5694299 Selective call receiver having a cover with a hole for a key to protrude therethrough |
12/02/1997 | US5692925 Modular plug comprising circuit elements |
12/02/1997 | CA2075837C Receiver controller method and apparatus |
11/27/1997 | WO1997044981A1 Transmitting subscriber identity in mobile communication system |
11/27/1997 | WO1997044976A1 Intelligent docking station for short message service |
11/27/1997 | WO1997044959A1 Caller id telephone with signal attenuation |