The Wouxun KG-UVD1P 2m/440 HT has this strange function that it calls "SOS". Check out the video I made that shows how to activate it and what it does:
Wouxun KG-UVD1P 2m/440 radio SOS function demonstration on Vimeo
Wouxun KG-UVD1P 2m/440 radio SOS function demonstration on Vimeo