What does the "lock" key in our cell fone really do?

Question

at first, i thought it meant to lock da person u dont like so when they call u it doesn't show, but that's not it....

Answer 1

The lock feature disables any exterior buttons on your phone after the phone is inactive for a certain amount of time.  The purpose is to ensure that you don't press extra buttons or make phone calls unintentionally.  Imagine if, by accident, you hit 3 and send.  Your phone would call #3 on your speed dial without you knowing. You could waste a lot of minutes making accidental phone calls.  

Answer 2

idiot  

Answer 3

For example if you are running while the phone is in your pocket and its not locked then you might accidentally press a button and mess something up. My mp3 has a lock switch on it and i use it while i am riding a bike,walking,or something like that.  

Answer 4

it locks when you turn it on,off

Answer 5

It's for phones that are not flip phones so you don't accidentally press buttons when the phone is in your pocket.