Fraud prevention in an electronic coin telephone set

Details Fraud prevention in an electronic coin telephone set Fraud prevention in an electronic coin telephone set

H - Electricity

04

M

379/74

H04M 17/02 (2006.01) G07F 1/04 (2006.01)

Patent

CA 1222334

-24 - FRAUD PREVENTION IN AN ELECTRONIC COIN TELEPHONE SET Abstract This invention pertains to a microcomputer controlled coin telephone set which prevents coin call fraud and performs all of the coin discrimination functions. The microcomputer also checks the operational readiness of the telephone set to prevent the acceptance of coins into a hopper for later collection by a coin box unless or until the set is fully functional.

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