With you VHF-DSC, improve your marine Radio operator skills. Mutiples functions are available, includind communication between two or more IOS devices. To do that you have to log in on server and select a Waterplace, and send DSC Routine message.
With VHF.DSC, you can train to send Mayday, Pan Pan, Securite or Routine messages
RT (Radio communication) will work effectively on next version, as well as receiving real message like Distress alert (mayday) or call.
There is also the auto Distress function, to send a Mayday alert by holding buttons for 5 seconds.