When I run the rampstart, I turn on the batteries, I turn on Ekran Hyd Pwr, and if I press then the betty voice test, the audio message is not heard. You have to turn on the intercom, with intercom on the audio message "Ekran is ready" you hear, if I leave intercom off, the audio message you do not hear. I think it's a bug, also because the intercom is to communicate with the ground personnel, it doesn't enable the internal audio alarm system of the cockpit.