METHOD FOR PROVIDING ACCESS TO PRE-PAID TELEPHONE SERVICES

摘要

Method, telephone terminal and telephone exchange for supplying a paid service within a telephone system from a service source which is suitable for supplying a publicly accessible pay service to a telephone terminal, comprising a user of the telephone terminal making a telephone connection to the service source, in which case the user is given an access code, an operator of an access unit to the service source monitors a debit balance corresponding to the access code, in order to gain the desired access to the service source the user makes an ordinary telephone connection of a type to which an ordinary call tariff applies with the access unit, the user communicates the access code via the connection, the operator of the access unit checks whether the access code received is correct and allows access if the access code received is correct and the corresponding debit balance is sufficient, and the operator of the access unit reduces the debit balance in accordance with the access provided to the service source and breaks off the connection after the debit balance has become insufficient.