| Patents for H04W 68 - Notification of users, e.g. alerting for incoming communication or change of service (11,086) |
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| 01/14/1992 | US5081704 Method of arranging radio control channels in mobile communications |
| 11/20/1991 | CN1056392A Apparatus and method for directing calls to mobile telephone subscribers |
| 11/14/1991 | WO1991017620A1 Apparatus and method for directing calls to mobile telephone subscribers |
| 11/13/1991 | CN1056214A Multi-exchange paping system for locating mobile telephone in wide area telephone network |
| 10/30/1991 | EP0454648A2 Multi-exchange paging system for locating a mobile telephone in a wide area telephone network |
| 10/30/1991 | EP0454647A2 Apparatus and method for directing calls to mobile telephone subscribers |
| 10/28/1991 | WO1991017621A1 Multi-exchange paging system for locating a mobile telephone in a wide area telephone network |
| 08/23/1991 | WO1991013509A1 Method and system for establishing link with wireless telephone |
| 08/23/1991 | CA2075279A1 Radio communication system |
| 05/30/1991 | WO1991007838A1 Remote access telephone control system |
| 05/22/1991 | EP0428126A2 Paging signal control system in mobile communication system |
| 04/09/1991 | CA1282838C Colocated cellular radiotelephone systems |
| 04/03/1991 | CN1012314B Method of converting and controlling channel in radio telephone system |
| 03/27/1991 | EP0419244A2 Method of arranging radio control channels in mobile communications |
| 03/20/1991 | EP0417986A2 Telephone system |
| 03/13/1991 | EP0211849B1 Pager system and communication protocol |
| 02/20/1991 | EP0413369A1 A portable pager |
| 02/14/1991 | DE3926305A1 Transfer device for several mobile subscribers - interrogates electronic back call memory in given time periods in response to stored back call requirements |
| 02/13/1991 | EP0412574A2 Antenna for watch pager system |
| 01/16/1991 | EP0408086A2 Watch pager system |
| 01/03/1991 | DE3921637A1 Telephone exchange system for mobile units - uses stored information relating to positions of mobile units to establish required calls |
| 12/05/1990 | EP0309572A4 Registration of radiotelephones in networked cellular radiotelephone systems |
| 08/07/1990 | US4947420 Communication system |
| 05/16/1990 | CN1042279A Method of converting and controlling channel in radio telephone system |
| 04/17/1990 | US4918746 Communication system with mobile stations |
| 02/07/1990 | EP0179898B1 A two way personal message system with extended coverage |
| 01/23/1990 | CA1264813A1 Communication control system capable of searching a called telephone set in a mobile radio telephone network |
| 01/09/1990 | US4893327 Colocated cellular radiotelephone systems |
| 12/28/1989 | DE3827698C1 Method for the automatic search for mobile radio subscribers |
| 09/26/1989 | CA1260636A1 Watch pager system and communication protocol |
| 06/27/1989 | US4843622 Communication control system capable of searching a called telephone set in a mobile radio telephone network |
| 04/18/1989 | US4823280 Computer-controlled electronic system monitor |
| 04/05/1989 | EP0309572A1 Registration of radiotelephones in networked cellular radiotelephone systems. |
| 01/25/1989 | EP0300721A2 Colocated cellular radiotelephone systems |
| 01/17/1989 | US4799253 Colocated cellular radiotelephone systems |
| 01/03/1989 | US4796291 Mobile radio communications system |
| 10/20/1988 | WO1988008238A1 Registration of radiotelephones in networked cellular radiotelephone systems |
| 10/05/1988 | EP0285164A2 Communication control system capable of searching a called telephone set in a mobile radio telephone network |
| 10/04/1988 | US4775998 Method of assigning voice radio channels |
| 09/08/1988 | DE3706240A1 Method and radio paging system for selectively transmitting calls to mobile subscribers |
| 02/11/1988 | DE3626059A1 Radio network |
| 01/12/1988 | CA1231385A1 Mobile telephone system for automatically paging absent mobile subscriber |
| 01/12/1988 | CA1231383A1 Two-way personal message system with extended coverage |
| 12/22/1987 | US4714923 Method and apparatus for shedding load in a communications controller of a data communications system |
| 12/15/1987 | US4713808 Watch pager system and communication protocol |
| 10/13/1987 | US4700374 Mobile telephone location system |
| 10/13/1987 | CA1228122A1 Mobile radio communications system |
| 09/08/1987 | CA1226689A1 Method for establishing a telephone connection between a stationary and a mobile subscriber |
| 06/09/1987 | US4672656 Method for establishing a radio connection |
| 06/09/1987 | US4672655 Method for establishing a connection with a mobile subscriber and system for implementing the method |
| 04/28/1987 | US4661972 Mobile telephone system for automatically paging absent mobile subscriber |
| 04/14/1987 | CA1220585A1 Method for establishing a radio circuit |
| 03/24/1987 | CA1219638A1 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system |
| 03/04/1987 | EP0211849A1 Pager system and communication protocol. |
| 02/17/1987 | US4644351 Two way personal message system with extended coverage |
| 09/22/1986 | EP0179898A4 A two way personal message system with extended coverage. |
| 09/03/1986 | EP0193316A1 Mobile telephone system for automatically paging absent mobile subscriber |
| 06/24/1986 | US4597105 Quaternary ammonium coupler, filers, tensile strength |
| 06/19/1986 | WO1986003645A1 Watch pager system and communication protocol |
| 05/07/1986 | EP0179898A1 A two way personal message system with extended coverage. |
| 03/11/1986 | US4575582 Mobile radio communications system |
| 01/08/1986 | EP0167458A2 System and procedure for locating a mobile telephone subscriber within the range of a wide geographic surface |
| 11/21/1985 | WO1985005240A1 A two way personal message system with extended coverage |
| 10/29/1985 | US4550443 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system |
| 10/01/1985 | US4545071 Portable radio for a zoned data communications system communicating message signals between portable radios and a host computer |
| 10/01/1985 | EP0127641A4 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system. |
| 06/25/1985 | US4525861 Zoned data communications system for communicating message signals between portable radios and a host computer |
| 06/19/1985 | EP0144665A2 Method and system for establishing a telephone connection with a mobile suscriber |
| 06/12/1985 | EP0143942A2 System for exchanging data between radio base sites |
| 05/08/1985 | EP0140351A2 Mobile radio communications system |
| 04/24/1985 | EP0137866A1 Method of initiating a telephone communication between a stationary and a mobile subscriber |
| 04/24/1985 | EP0137865A1 Method of setting up a radio communication |
| 12/12/1984 | EP0127641A1 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system |
| 11/06/1984 | US4481670 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system |
| 06/20/1984 | EP0111164A1 Radio system |
| 05/24/1984 | WO1984002043A1 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system |
| 01/31/1984 | CA1161500A1 Radio signal receiving apparatus with a security circuitry |
| 12/27/1983 | US4423413 Radiocommunication system in which a receiving station monitors a number of transmitters by time division |
| 07/05/1983 | US4392242 Mobile communication system |
| 03/29/1983 | US4378551 Radio signal receiving apparatus with a security circuitry |
| 03/22/1983 | CA1143439A1 Mobile communication system |
| 10/05/1982 | US4352955 Control signal transmission system for use in a mobile radio communication system |
| 08/31/1982 | US4347626 Radio telephone communication network |
| 01/06/1982 | EP0043154A1 Radiocommunication system in which a receiving station monitors a number of transmitters by time division |
| 10/29/1980 | EP0017898A1 Radio installation |
| 07/23/1980 | EP0013316A1 Radiotelephone network with a main station, at least two relay stations working on the same radio channel and a plurality of substations |