How To Enable What's App Calling Manually

Instructions :

• Download Latest Apk File from HERE
• Download ES File Explorer 
• Grant Root Explorer Permission 
• Go to Root of your device
• Select Data Folder
• Again Select Data Folder
• Select com.whatsapp Folder
• Select Share preference folder
• Select com.whatsapp preference XML file and open with Es Note Editor
• Tap on three dotted line and select edit. 
• Copy and past this command anywhere 

             boolean name="call" value="true" / string name="call_allowed"all/string 

• Save the XML and exit the Es file Explorer.
• Now go to your settings option , select the option APPs, go to what'app application and Force Close it.
• After that launch what's app .

Video Review :