This was very short, but it's nice to know how to do it on a iPhone, since many people don't even think that there's a option like that. Hope you like it. :-) Follow for more.
OBS. This only work if you have udated your iPhone to the newest version, i updated to 6.0.2, to check what update you have go to general - about - version. And to update: general - softwareupdate.