A method for transmitting information between a mobile telephone having an internal device time, and a recipient having an internal time standard, includes: A) telephone transmits a query signal to recipient, B) recipient reads out the internal time standard and sends to telephone, C) a time difference delta-t1 between the internal device time and the received time data is calculated/stored, D) apply time is set to the value of the internal device time minus delta-t1, E) data stream is sent to the recipient, including apply time at time of pressing a key, F) apply time of E) is read-out from the stream and compared with predetermined maximum time, G) if apply time is earlier/simultaneous with the maximum time, further processing of data stream is carried out; if apply time is later than the maximum time, a warning signal is generated/assigned to the data stream of E) and stored.