'Dbltaptoendcall' Makes You Double-tap On the End Button to End a Call
When you're in the middle of a phone call on your iPhone, the End button is so large and easy to tap on that it can be easy to accidentally end a call when you didn't really mean to.
A new free jailbreak tweak called Dbltaptoendcall
by iOS developer Burt helps prevent unwanted accidental hangups by forcing you to double-tap on the End button while in the call interface of iOS rather than just tapping on it once.
After the tweak is installed, if you tap on the End button only once, it'll still highlight as usual, but the call won't end until you rapidly tap on the button twice.
You'll find a preferences pane in the Settings application where you can enable or disable the tweak on demand:
If you want to give Dbltaptoendcall a try, it's available for free in Cydia's BigBoss repository. The tweak does require iOS 7 to be installed.
iPhone 5 running iOS 7.0.4