The Global Maritime Distress and Safety System (GMDSS)
Iphone SOS is not the same asand EPIRB https://www.acrartex.com/news/using-your-smart-phone-for-satellite-emergency-sos/
Fascinating read
Iphone SOS is not the same asand EPIRB https://www.acrartex.com/news/using-your-smart-phone-for-satellite-emergency-sos/
Fascinating read