Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 15 - Arrangements for metering, time-control or time-indication
Patents for H04M 15 - Arrangements for metering, time-control or time-indication (14,957)
05/1985
05/14/1985US4517411 Method and apparatus for private branch exchange billing
03/1985
03/27/1985EP0135196A2 Mobile radio communication system
03/26/1985CA1184641A1 System for forwarding along a telephone connection the identities of the subscribers involved in that connection
11/1984
11/27/1984US4485270 Method for transmitting a charging signal
11/07/1984EP0123890A2 Method for the assignment of connection data to telephone subscriber's stations
11/06/1984US4481383 Communication system recording arrangement
10/1984
10/31/1984EP0123330A2 Circuital arrangement for counting and dividing the taxation impulses pertaining to a generical telephone line
09/1984
09/25/1984US4473718 Self-actuating telephone timer
09/18/1984US4472600 Charge time start control for interconnect PABX
08/1984
08/29/1984EP0117181A1 Method of price calculation for selling information by telephone
08/15/1984EP0115924A1 Telephone call cost indicator
07/1984
07/24/1984US4461928 Telephone charge system for displaying allotment of charges between a calling party and a called party
07/18/1984EP0113693A1 Computing machine with telecommunications device
07/10/1984US4459432 Telephone charge integrating and displaying device and system
07/04/1984EP0112678A1 A telecommunications system
04/1984
04/25/1984EP0106073A2 Fee indicator with ticket printer
04/24/1984US4445001 Circuit arrangement for identifying telephone subscribers
04/03/1984US4440978 Universal measured service interface for step-by-step telephone exchanges
02/1984
02/14/1984CA1162336A1 System for entering and processing gamble stakes
02/07/1984US4430528 Telephone call counter
11/1983
11/22/1983US4417101 Public telephone station traffic analyzing arrangement
10/1983
10/25/1983US4412101 Call data monitoring for electromechanical telephone switching systems
10/18/1983US4410765 Telephone call routing and charging system
09/1983
09/13/1983US4404433 Telephone call monitoring apparatus
08/1983
08/09/1983US4398065 Circuit arrangement for determining the zone of origin of a telephone connection
07/1983
07/05/1983CA1149494A1 Telephone-switching system and novel public telephone instrument
05/1983
05/03/1983CA1145869A1 Apparatus for use in a telephone exchange including an operator cordboard position
04/1983
04/13/1983EP0076645A1 Method of and apparatus for transmitting a call charging signal
03/1983
03/08/1983CA1142630A1 Remote time and charge system
02/1983
02/22/1983CA1141848A1 Billing interface circuit
02/09/1983EP0070872A1 Cordless telephone system
12/1982
12/07/1982CA1137241A1 Mechanical device for limiting duration of a telephone conversation
11/1982
11/23/1982CA1136302A1 Method and apparatus for apportioning call charges
11/02/1982CA1134931A1 Trunk interface circuit
10/1982
10/26/1982US4356352 Circuit arrangement for telephone exchange systems having time staggered charge metering pulse frequencies
10/20/1982EP0062701A1 Method for the transmission of loop conditions and metering pulses in telephone systems
10/14/1982WO1982003517A1 Cordless telephone system
09/1982
09/28/1982US4351984 Apparatus for use in a telephone exchange including an operator cordboard position
09/08/1982EP0059469A1 System for forwarding along a telephone connection the identities of the subscribers involved in that connection
06/1982
06/15/1982US4335279 Mechanical telephone conversation time limiting device
05/1982
05/13/1982WO1982001634A1 Process and device for determining and delivering the amounts of telephone fees
04/1982
04/07/1982EP0048868A1 Communications system, especially telephone system
04/06/1982US4323767 Repeatedly operable timer
03/1982
03/16/1982CA1120164A1 Data base auto bill calling using ccis direct signaling
03/02/1982CA1119330A1 Subscriber's circuit
02/1982
02/23/1982CA1118875A1 Identifier for manual switchboards with conference facility
11/1981
11/11/1981EP0039500A1 Apparatus for the collection of telephone criteria from electromechanical exchange devices
10/1981
10/13/1981US4295007 Line identifier for switchboards
08/1981
08/12/1981EP0033573A1 An electronic telephone call debiting meter for a subscriber's telephone set
08/06/1981WO1981002235A1 An electronic telephone call debiting meter for a subscriber's telephone set
07/1981
07/22/1981EP0032410A1 Telephonic betting system for lotto or other authorized games of chance
06/1981
06/23/1981US4275272 Remote time and charge system
06/16/1981US4273962 Impulse metering of local telephone switching offices via a DAMA DOMSAT communication system
04/1981
04/28/1981US4264956 Call cost monitor
04/21/1981US4263482 Public telephone station traffic analyzing arrangement
03/1981
03/10/1981US4255621 Billing interface circuit
02/1981
02/24/1981US4252998 Identifier for manual switchboards with conference facility
01/1981
01/28/1981EP0023181A1 Apparatus for the automatic registration of the cost of a telephone call and associated telephone exchange
01/27/1981US4247740 Trunk interface circuit
01/27/1981CA1094670A1 Identifier circuit for identifying party line subscribers
01/20/1981CA1094209A1 System for monitoring the operational ability of data processing equipment
01/07/1981EP0021309A1 Circuit arrangement for telecommunications exchanges, in particular telephone exchanges, with the metering impulse frequencies graduated according to time
12/1980
12/09/1980CA1091372A1 Telephone message timing system
10/1980
10/29/1980EP0017984A1 Mechanical telephone conversation time limiting device
10/01/1980EP0016413A1 Circuit for determining the source of a telephone connection
09/1980
09/23/1980US4224472 Method and apparatus for apportioning call charges
08/1980
08/05/1980CA1083273A1 Data transmission system
07/1980
07/08/1980US4211896 Subscriber's circuit with a symmetrical amplifier
07/01/1980CA1080868A1 Automatic number identification device
06/1980
06/24/1980CA1080335A1 Input/output security system for data processing equipment
06/03/1980CA1078963A1 Automatic price computing and displaying device_
06/03/1980CA1078946A1 Tip automatic number identification circuit
05/1980
05/20/1980CA1078051A1 Data processing equipment
05/13/1980CA1077601A1 Arrangement for automatically generating alternate telephone station identification codes
04/1980
04/16/1980EP0009684A1 A telephone-switching system
03/1980
03/25/1980CA1074426A1 Means for identifying subscriber lines
03/11/1980CA1073547A1 Recorder transfer arrangement maintaining billing data continuity
02/1980
02/06/1980EP0007677A1 Circuit for the supervision of the variation of the potentials on several lines
01/1980
01/09/1980EP0006265A1 Circuit for telephone sets detecting the dialling pulses
01/08/1980CA1069631A1 Method and apparatus for automatically identifying an individual calling party on a multiparty telephone line
12/1979
12/04/1979CA1067635A1 Telephone metering interface with reverse signal sensor
11/1979
11/13/1979CA1066397A1 Class of call discriminating trunk circuit
10/1979
10/23/1979US4172214 Integrated message accounting system
10/03/1979EP0004497A1 Apparatus for analysing the traffic of public telephones and remote supervision installation for analysing the traffic of public telephones served by a plurality of telephone exchanges
09/1979
09/11/1979CA1062354A1 Telephone station identification system
08/1979
08/21/1979US4165446 Data transmission systems (using internal systems equipment, services and procedures of telephone companies)
08/08/1979EP0003428A1 Telephone logging apparatus and process
07/1979
07/24/1979US4162377 Data base auto bill calling using CCIS direct signaling
07/17/1979US4161626 Telephone time recorder
07/10/1979US4160879 Telephone display accessory
06/1979
06/26/1979US4159402 Means for identifying subscriber lines
06/12/1979CA1056526A1 Method to apply and disconnect a 16khz signal to a telephone line without producing clicks
04/1979
04/24/1979US4151372 Message registration pulse generator
04/10/1979US4149040 Identifier circuit for identifying party line subscribers
03/1979
03/27/1979US4146929 Input/output security system for data processing equipment
03/27/1979US4146746 Device for computing and displaying the price of a service
03/27/1979US4145873 Timing device for accumulating a telephone long distance call charge
03/27/1979CA1051557A2 Event monitoring transceiver
03/13/1979CA1050639A1 Collecting switching system call billing data
03/06/1979CA1050141A1 Automatic telephone number identification circuit
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