The invention relates to a method for testing the condition of a cellular radio
system. The cellular radio system comprises a testing device which is a fixed part
of the cellular radio system and operationally connected to a data network. The
testing device has a connection over radio path to one or more base stations, and
the operational condition of the cellular radio system is examined by means of
the testing device by utilizing the radio connection of the testing device to at
least one base station. In addition, the data network is utilized.
