Since the very first iPhone was released back in 2007, people have been discovering little-known features that make them easier to use.
And the invention of Siri, the voice-controlled personal assistant, made it even easier for people to carry out everyday functions on their smartphones.
From calling people to doing a quick Google search, it's been used for a number of years now - but some people are unaware that you can also use it to control what your phone does.
