What is the new icon on Windows 8.1 to the right of the wifi icon?

[Windows Central Question]

What is the new icon on Windows 8.1 to the right of the wifi icon

I have a Nokia 521 and just updated it to Windows 8.1 Across the top of the screen from left to right there are 1) Bars for mobile service 2) Wifi Signal Strength 3) New unknown Icon 4) Space 5) Battery 6) Date & Time. What is the #3 Icon and what is it for?

 

[pankaj981]

Re: What is the new icon on Windows 8.1 to the right of the wifi icon

That's a vibrate/silent indicator

 

[RumoredNow]

Re: What is the new icon on Windows 8.1 to the right of the wifi icon

If it is 3 wavy lines rising bottom left of icon towards the top right... That is Vibrate just as pankaj says.

Around here we call it "Bacon Mode" as a joke.

What do the icons on my phone mean? | Windows Phone How-to (United States)