Have you ever wondered how to quickly reject a call when your iPhone is locked? This can be especially important when you are in an meeting and have forgotten to turn off your iPhone beforehand. Yes, this is a basic how to, but for those who do not already know, it can prove invaluable.

When you receive a call on your locked iPhone, “slide to unlock” will change to “slide to answer”, with no “reject” or "ignore" option in sight, but you can still do it:

  • To ignore/silence an incoming call, just press the sleep/wake button once (that's the button which is at the very top of your iPhone)
  • To reject/send an incoming call to voicemail, press the sleep/wake button twice.

Let us know how it works for you and if you have any questions, ask in the comments!

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