How To Enable Vibration On Viber When Ringing ?
Step 1: Open Viber .
Step 2: Click on Stack Icon at the Top ,and then click on Settings.
Step 2: Click on Notifications.
Step 3:Click on Vibrate when Ringing option .
That's all
Thanks for watching,if you like this tutorial ,please like and share .
==============================================
https://www.facebook.com/HowtoTutorialsByAmit/