Method for undoing from one customer station a server operation initiated by another station, comprises calculation of undoing cost and return to initiating station of annulling payment less cost

摘要

An undoing request (E1) is received from a station (Ua) and execution is checked (E3). The station calling for undoing is identified (E5) and the undoing cost and execution payment (Ca,Pa) are obtained (E6,E7). The identity of the station (Up) which initiated the original operation is established (E18) and a balance (M) for repayment is calculated (E19). After an iterative process the repayments are made (E27) : Independent claims are made for equipment and communication systems used by the method.