Abstract: A charging process for selling information via a telephone network. A data bank can be connected via said network with calling subscribers. This data bank has a telephone number and a device for supplying a spoken message. The data bank supplies its message to any calling subscriber as of the time at which a call from said subscriber is received, and the duration of the message supplied by the data bank is fixed. A number is allocated which, for the telephone network, is considered to correspond to a time-based charge based on a certain charge band, this number also implying a routing of the call via time-based charging means.