A method relating to a vehicle parking cash-payment system

A method of making cash payments in a vehicle parking system in which a mobile telephone ( 1 ) is used to commence and terminate parking of a vehicle, and where a telephone user sends at least one code to a receiving computer ( 2 ) belonging to the parking system via said mobile telephone upon commencement and termination of a parking period. The invention is characterised in that there is used a start packet which includes a user specific code ( 7 ), a one-time code, such as a PIN code, a telephone number to said computer ( 2 ), and a statement as to the amount of money available for parking purposes; in that when connecting to the parking system, the mobile telephone ( 1 ) is caused to be connected to said computer ( 2 ) via said telephone number, whereafter the user specific code ( 7 ) and the one-time code are caused to be sent to said computer by means of the mobile telephone; in that said computer ( 2 ) is caused to detect and store the number of the mobile telephone ( 1 ); in that said computer is caused to compare the user specific code and the one-time code; in that when agreement is found between the user specific code and the one-time code, the user specific code is stored together with the number of the mobile telephone and the amount of money available for parking purposes; and in that commencement and termination of a parking period are respectively initiated by causing the mobile telephone ( 1 ) to be connected to a predetermined telephone number belonging to said computer ( 2 ).