| 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 |