Patents for H04M 17 - Prepayment telephone systems (5,258) |
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04/03/1997 | WO1997012479A1 A communication and service terminal |
04/01/1997 | US5617470 Apparatus and method for preventing unauthorized access to a system |
03/25/1997 | US5615408 Apparatus and method for credit based management of telecommunication activity |
03/25/1997 | US5615260 Apparatus for accepting and retaining a smart card |
03/20/1997 | WO1997010576A1 Integrated payphone and vending machine |
03/06/1997 | WO1997005728A3 Credit-registering method for use in telephony |
03/06/1997 | DE19532086A1 Telephone with valid phonecard activated connection terminal |
03/05/1997 | EP0760190A1 Telephone call management device for connection to a standard telephone handset |
03/04/1997 | US5608778 Cellular telephone as an authenticated transaction controller |
02/18/1997 | US5604787 Method and apparatus for transferring information to a device in a communication system |
02/13/1997 | WO1997005732A1 Methods and apparatus for providing a prepaid, remote memory customer account for the hearing impaired |
02/13/1997 | WO1997005729A1 Radio mobile terminal provided with an additional reader of chip cards |
02/13/1997 | WO1997005728A2 Credit-registering method for use in telephony |
02/13/1997 | WO1996034471A3 Fraud resistant remote purchasing system |
02/12/1997 | CN1142722A Self protective public telephone system and operation method therefor |
02/11/1997 | US5602905 On-line communication terminal/apparatus |
02/06/1997 | WO1997004579A1 Method and apparatus for generating summaries of prepaid instrument transaction activity |
02/06/1997 | DE19528423A1 Verfahren zur Guthabenerfassung im Fernsprechwesen A method for detecting deposits in the telephone service |
02/06/1997 | CA2226896A1 Method and apparatus for generating summaries of prepaid instrument transaction activity |
02/04/1997 | US5600122 Structure of card insertion port and method of mounting card insertion port member |
01/29/1997 | EP0756408A2 Card type automatic dialing device |
01/29/1997 | EP0636293A4 Toll call telephone service center. |
01/22/1997 | EP0754394A1 A removable subscriber identification module for a mobile radio terminal and a call control method |
01/21/1997 | US5596630 Anti-stuffing lead-in-chute on coin acceptor for payphone |
01/15/1997 | EP0580769A4 Method and apparatus for providing answer supervision and an autonomous pay telephone incorporating the same |
01/09/1997 | WO1997001253A1 Communication network having replaceable sim card |
01/07/1997 | US5592539 System for completing air-to-ground telephone calls |
01/07/1997 | US5592535 Mobile-radio network with debit accounts |
01/01/1997 | CN2244272Y Coined TV set timed controller |
01/01/1997 | CN1139508A Method for transmitting tariff data to a subscriber unit |
12/31/1996 | US5590191 Reinforced public telephone having dual key pads |
12/25/1996 | CN2243752Y Intellectual magnetic card telephone |
12/19/1996 | WO1996041462A1 System and method for dispensing of a receipt reflecting prepaid phone services |
12/18/1996 | EP0550618A4 Cordless telephone with internal debit and credit memory |
12/18/1996 | CN1138264A Office procedure for set data |
12/10/1996 | US5583933 Method and apparatus for the secure communication of data |
12/10/1996 | US5583918 Credit card-based accounting service system for a network |
12/05/1996 | WO1996038813A1 Refundable prepaid telephone card |
12/05/1996 | WO1996038801A1 Methods and apparatus for providing a prepaid, remote entry customer account |
12/05/1996 | DE19603167A1 Audiovisuelles Kommunikationsverfahren und -vorrichtung unter Verwendung eines digitalen Netzwerkes Audiovisual communication method and apparatus using a digital network |
12/05/1996 | CA2222762A1 Refundable prepaid telephone card |
12/04/1996 | EP0746137A2 Payphone management system |
12/04/1996 | EP0746136A2 Automatic credit card calling system |
12/04/1996 | EP0745303A1 Communication system |
12/04/1996 | CN2241958Y Coin-freed multi-function telephone |
11/28/1996 | WO1996038001A1 Audiovisual telecommunication method and apparatus using a digital network |
11/27/1996 | CN1136875A Method and device for transfering information to a device in a communication system |
11/19/1996 | US5577109 Pre-paid card system and method |
11/19/1996 | US5577100 Mobile phone with internal accounting |
11/14/1996 | WO1996036162A1 Subscriptionless telephone, control module therefor and secure telephone equipment including the telephone and security module |
11/13/1996 | EP0741949A1 Method for transmitting tariff data to a subscriber unit |
11/12/1996 | CA2100448C Apparatus for accepting and retaining a smart card |
11/07/1996 | WO1996031848A3 Telecommunications reward method |
11/06/1996 | CN1135135A Method for management of terminal device |
11/05/1996 | US5572005 Telecommunications booth comprising a telecommunications train having a plurality of wheeled housings |
10/31/1996 | WO1996034471A2 Fraud resistant remote purchasing system |
10/30/1996 | EP0740268A1 Memory card and method for using such a card |
10/30/1996 | EP0739526A1 Real time tele-payment system |
10/29/1996 | US5570416 Call center management system |
10/25/1996 | CA2147688A1 Protective coin return for a telephone paystation |
10/24/1996 | DE19514508A1 Electrical coupling device for data terminal |
10/17/1996 | WO1996032822A1 A radio system realizing a wireless subscriber interface, and a subscriber station |
10/17/1996 | DE19513746A1 Device for securing telephone terminals against improper use |
10/17/1996 | CA2216314A1 A radio system realizing a wireless subscriber interface, and a subscriber station |
10/16/1996 | EP0737399A1 Method and apparatus for transferring information to a device in a communication system |
10/10/1996 | WO1996031971A1 System for accessing telephonic communications and for conducting telephonic transactions |
10/10/1996 | WO1996031848A2 Telecommunications reward method |
10/10/1996 | CA2217579A1 System for accessing telephonic communications and for conducting telephonic transactions |
10/08/1996 | US5563934 Pay phone call control apparatus for allowing calls using pre-paid cards |
10/06/1996 | CA2142691A1 Long distance loyalty rewards device |
09/26/1996 | WO1996029816A1 Telephone call management device for connection to a standard telephone handset |
09/26/1996 | WO1996024913A3 Two-way messaging network using debit cards |
09/24/1996 | US5558227 Sealed container having a calendar function |
09/18/1996 | CN1131493A Charge recording in telephone network |
09/11/1996 | CN1130776A Apparatus for reading payment card |
09/10/1996 | US5555296 Pay telephone stand |
09/04/1996 | CN2234635Y Coin inlet base for coin-freed telephone |
08/29/1996 | WO1996026594A1 A public telephone set comprising a subsidiary processor |
08/29/1996 | WO1996017466A3 Communication system for multiservice terminals |
08/29/1996 | CA2212894A1 A public telephone set comprising a subsidiary processor |
08/27/1996 | US5550917 Interface device between a public telephone and an external terminal |
08/27/1996 | US5550897 Cellular telephone calling system using credit card validation |
08/22/1996 | WO1996025828A1 A method for using applications in a mobile station, a mobile station, and a system for effecting payments |
08/21/1996 | EP0727898A1 Telephone station |
08/15/1996 | WO1996025000A1 Telephone set |
08/15/1996 | WO1996024913A2 Two-way messaging network using debit cards |
08/13/1996 | US5546446 Public telephone system using a prepaid card to enable communication |
08/08/1996 | WO1996024229A1 Mobile phone with internal accounting |
08/08/1996 | WO1996015616A3 Method and telecommunication system for charging a user |
08/08/1996 | DE19521556A1 Radio telephone communications with other telecommunications devices |
08/01/1996 | WO1996023272A1 Circuit for driving inductive sensors for reading and debiting prepaid cards |
07/18/1996 | DE19501049A1 Facsimile communication system for payphone |
07/17/1996 | EP0721723A1 Charge recording in a telephone network |
07/10/1996 | CN1126533A Front end processor employing data over voice communication with smart telephones |
07/09/1996 | US5535264 Prompt issuing protocol for an intercept voice messaging system |
06/26/1996 | EP0519963B1 Telephone call detecting circuit and a method of remotely accessing and testing a telephone |
06/12/1996 | EP0716534A1 Credit cards reading device |
06/11/1996 | US5526412 In a coin-operated pay telephone for a communications system |
06/06/1996 | WO1996017466A2 Communication system for multiservice terminals |
06/04/1996 | US5524143 Anti-stuffing coin realigner |