Just found a feature on my phone

[Moondog55]

All phones probably have this but what would I know???
Insert stoopid smiley face here
I held my finger on the torch function button for 3 seconds and it started flashing SOS in Morse code.
What I was trying to do was move the icon from the tools drop down onto the first page, if I need a phone torch I'm in trouble and I won't be able to search for the stupid thing