How to Fix the missing Mute, Add Call option in Android 4.2.2 update from Samsung

16

If you have just received an update from Samsung to upgrade OS to 4.2.2, you may be surprised at some new changes..
You will notice that some of the text is really enlarged (though the font settings say Tiny)
The most annoying part (especially if you use your cellphone for conference calls) is that the Mute, Add Call (for conference) will be missing..
There is a workaround for this.. Watch the video !!

Source: Youtube