Iphone Sound Video does not start automatically

I nees some help again

This case happens only on an Iphone.
The HTML5 file with a video starts automatically, but the sound cannot be heard. The sound only starts after you click on the screen. Is there a setting to fix the problem?

Thank you and best regards.
Pascal

Hi,

Please take a look at this thread for more information:

Regards,
Quynh