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)
11/1988
11/29/1988US4788719 Telephone call charge allocation arrangement
11/29/1988US4788718 Call data collection and modification of received call distribution
11/22/1988CA1245382A1 Battery-feed circuit for exchange
10/1988
10/18/1988CA1243385A1 Electronic private branch exchanges
10/06/1988WO1988007797A1 Telephone call monitoring, metering and selection device
10/06/1988DE3709750A1 Method and arrangement for management of charges on telephone extensions in hospitals, hotels and the like
10/04/1988US4776004 Communication services method and apparatus
10/04/1988US4776000 Telephone communications system with portable handsets
09/1988
09/22/1988WO1988007304A1 Communication services method and apparatus
09/13/1988US4771452 Telephone call duration control
08/1988
08/30/1988US4768223 Public telephone set with internal charge processing
08/24/1988EP0279025A1 Receiver for tax impulses
07/1988
07/20/1988EP0274506A1 System for the payment of telephone communications in a private automatic exchange
07/13/1988EP0274308A2 Devices delivering information to telephone subscribers about their telephone calls
07/12/1988US4757267 Telephone system for connecting a customer to a supplier of goods
07/05/1988US4756020 Method and apparatus for disallowing the extension of a call through a network
07/05/1988US4756019 Traffic routing and automatic network management system for telecommunication networks
06/1988
06/29/1988EP0272954A1 Device for initiating the metering for a public telephone
06/28/1988CA1238735A1 Method and apparatus for sharing operators among assistance systems
06/14/1988US4751728 Telephone call monitoring, metering and selection device
06/07/1988US4750201 Credit transaction arrangements
06/07/1988US4750200 Call meter signal receiver for subscriber's private metering of telephone system
05/1988
05/31/1988US4748653 Toll fraud control override
05/25/1988EP0164362B1 Method for customer definable telephone capability
05/11/1988DE3733701A1 Digital private branch exchange with telephone charge transmission
05/11/1988CN86208665U Mechanical-electrical gather nature detector of telephone
05/10/1988CA1236532A1 Method of detecting the unauthorized use of an identification assigned to a mobile radio station in a radio transmission system
05/05/1988DE3636563A1 Circuit arrangement for generating charge pulses for a telecommunications terminal
04/1988
04/21/1988WO1988002966A1 Automatic voice processing assisted customer information system
04/21/1988DE3634210A1 Communication system
04/20/1988EP0263961A2 Circuitry for the injection of registering pulses for counting the charges to calling parties
03/1988
03/30/1988EP0261392A2 Dual mode phone line interface
03/29/1988US4734933 Telephone line status circuit
03/29/1988US4734929 Telephone answering machines for collect call
03/09/1988EP0258654A2 Adaptive, tariff dependent traffic routing and automatic network management system for multiservice telecommunication networks
03/08/1988CA1233924A1 Telephone line status circuit
02/1988
02/23/1988US4727577 Method of and apparatus for recording information on the accumulated usage of a trunk
02/16/1988US4726057 Answer detection method and apparatus for coin telephone sets
02/16/1988US4726056 Shared flexible rating of telecommunications calls
02/03/1988EP0254743A1 Pay-per-view catv system.
02/02/1988US4723268 Dual mode phone line interface
01/1988
01/28/1988WO1988000781A1 System for the payment of telephone communications in a private self-switching unit
01/19/1988US4720852 Monolithically integratable telephone circuit for generating control signals for displaying the telephone charges to a subscriber
01/14/1988WO1988000419A1 Shared flexible rating of telecommunications calls
12/1987
12/16/1987CN86203756U Eight line telephone automatic timer for single plate micro-computer
12/08/1987US4712230 Monitoring and recording apparatus for connection to a telephone line
11/1987
11/26/1987DE3617367A1 Circuit arrangement for a telephone subscriber station
11/24/1987CA1229680A1 Method and apparatus for establishing telephone calling costs
11/17/1987US4707853 Electronic private branch exchanges
11/12/1987DE3615522A1 Telephone set
11/11/1987EP0245028A2 Automated operator assistance calls with voice processing
10/1987
10/27/1987CA1228659A1 Method for customer definable telephone capability
10/15/1987DE3611226A1 Circuit arrangement for a telephone set
09/1987
09/30/1987EP0238972A2 Call meter signal receiver for subscriber's private metering of telephone system
09/22/1987CA1227249A1 Mobile radio communication system
09/09/1987EP0236180A1 Telephonic communication system with a portable hand set
09/02/1987EP0234711A2 Information transmission/processing
08/1987
08/13/1987WO1987004884A1 Pay-per-view catv system
07/1987
07/15/1987CN86205202U Liquid crystal display electronic counter
07/07/1987CA1223993A1 Telephone call accounting system
06/1987
06/19/1987DE3543796A1 Circuit arrangement for the coupling in of out-band signals
04/1987
04/07/1987US4656657 Telephone monitoring device
04/07/1987US4656656 Call-accounting system
04/01/1987EP0216521A2 Credit transaction arrangements
03/1987
03/18/1987EP0214170A1 Telephone installation with short range radio transmissions comprising sets each simultaneously usable by a plurality of persons
03/11/1987EP0213822A2 Signal generators
03/04/1987EP0212654A2 Method and apparatus for disallowing the extension of a call through a network
02/1987
02/03/1987US4640986 Mobile radio communication system
02/03/1987EP0166757A4 Telephone call accounting system.
01/1987
01/20/1987US4638122 Monolithically integratable telephone circuit for generating control signals for displaying telephone charges
12/1986
12/30/1986EP0206279A1 Circuit arrangement for the noiseless injection of sinusoidal AC pulses, especially metering pulses of 16 kHz
12/10/1986CN85109245A Telephone line status circuit
11/1986
11/12/1986EP0200847A2 Method and device for sending and receiving telephone metering impulses on a carrier frequency
10/1986
10/28/1986US4620066 Method and apparatus for sharing operators among assistance systems
10/22/1986EP0198177A2 Method for announcing the telephone fee to a caller in a telephone exchange, especially a PBX
10/07/1986USRE32263 Charge time start control for interconnect PABX
09/1986
09/30/1986US4614840 Telecommunication line circuit and associated polarity reversal circuit
09/09/1986US4611094 Method for customer definable telephone capability
09/03/1986EP0193244A2 Polarity reversal circuit
09/02/1986CA1210879A1 Telecommunications system
08/1986
08/14/1986WO1986004756A1 Telephone installation with short range radio transmissions comprising sets each simultaneously usable by a plurality of persons
08/06/1986CN85109745A Battery-feed circuit for exchange
08/05/1986CA1209289A1 Charging process for selling information by telephone
07/1986
07/30/1986EP0188857A1 Telephone call cost monitor
07/02/1986EP0186214A2 Battery-feed circuit for exchange
06/1986
06/11/1986EP0183947A2 Method for registering outgoing calls made by the calling party in a private branch exchange
04/1986
04/29/1986US4585904 Programmable computerized telephone call cost metering device
04/16/1986EP0177968A1 Arrangement for the administration of bills for communication installations in hospitals, hotels or the like
04/09/1986EP0177218A2 Method and apparatus for sharing operators among assistance systems
03/1986
03/25/1986US4578540 Telecommunications systems
01/1986
01/08/1986EP0166757A1 Telephone call accounting system
12/1985
12/18/1985EP0164362A1 Method for customer definable telephone capability.
12/17/1985US4559415 Charging process for selling information by telephone
12/04/1985EP0163358A2 Method for recognizing the misuse of the call number pertaining to a mobile station in a radio-communication system
08/1985
08/27/1985US4538030 Method and apparatus for establishing telephone calling costs
06/1985
06/25/1985US4525601 Telephone call accounting system
06/20/1985WO1985002741A1 Telephone call accounting system
06/19/1985EP0145047A2 Telecommunication line circuit and associated polarity reversal circuit
06/19/1985EP0145038A2 Electronic circuits and signal generator using them
06/06/1985WO1985002510A1 Method for costumer definable telephone capability
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