Is there any way to very quickly hang up?

The lock/sleep button on the top of the phone.

 

Just the power button. Press it and make the call be gone. However, no dramatic *Clank* sound.

 

The lock button up top..from experience.

 

I discovered this on an earlier version of iOS but had completely forgotten about it!

It seems that iOS 7 takes longer to turn on the screen after you move the phone away from your face than previous versions of iOS.

 

Glad you posted this question, as it was something I wondered about too. I'm even "more glad" there is a solution. Thanks to all who replied

 

Oh, if you slam the phone down it will hang up on the other party. This tends to work only once, though.

 

I see what you did there

 

Err... am I the only one with an iPhone who preserves the call when I lock the phone... I've never owned an iPhone that hangs up when I use the sleep/wake button it just saves the phonecall in the background.

 

Do you use headphones?

 

Never mind, It seems that I've been turning on the speaker to make sure the call is being hung up.
This however causes the background feature to kick in, my bad.

 

Haha I do kind of miss the days of hanging up and the other person being able to hear that "click" sound.

 

Yell a profanity before you hit end. That will get your point across.

 

Shoot it with a gun.

Smash it repeatedly with a BFH.

Drop a wrecking ball on it.

Politely inquire as to the caller's location. Go there. Do any of the three aforementioned things while looking sternly in the eyes of the caller to REALLY get your point across.



or..

Say "Good day to you, Sir/Ma'am." and calmly end the call knowing that your blood pressure won't spike too high and pop that vein in your forehead.

 

if you throw it hard enough at the ground it should turn off, which will also hang up.

 

Ha...ha.

 

This button will not end a call. It will silence and send an incoming call to VM.

 

It will do that if you haven't answered the call yet (I believe one press to silence and one more to send to voice mail), but if you are already on the call (as the OP suggests) then the button will simply end the call.

 

Well I'll be damned, just tried it. 7 years of iPhones and I never knew this LOL