How Many Rings Does It Usually Takes Before It Goes To Voicemail? Here's The Answer.
The length of a ring before voicemail is controlled by the cell phone company and not the iPhone, just like Voicemail is provided by the carrier, it just has visual voicemail on the iPhone to make it more seemless. These settings may work as they change the carrier settings. You can also ignore a call and stop it ringing by pushing any of the side buttons.