2N Helios IP Configuration Manual page 112

Test period – set the test period: daily or weekly.
Test start time – set the test starting time in the HH:MM format. We
recommend you to set a time at which a low intercom traffic is expected.
Test now – push the button to start the test immediately regardless of the
current settings.
Test status – this parameter displays the current test status.
Last test time – this parameter displays the time of the last-performed test.
Last test result – this parameter displays the result of the last-performed test.
112
®
2N TELEKOMUNIKACE a.s., www.2n.cz