Trick To Activate WhatsApp Voice Call Feature Before Everybody Else

Just days after WhatsApp introduced the much
needed Desktop/Web access for the world's leading
instant messenger service, we now have WhatsApp
Call feature making it's appearance on some
selective installations. It seems the WhatsApp Voice
Call feature will be invite only for now where a user
who already has the feature can initiate a call to a
new user activating it on the other users
installation. A semi-functional trick to activate the
WhatsApp Call feature before everybody else is
shared below

You will need a rooted phone with Terminal Emulator and
latest 2.11.508 version of the WhatsApp App to get the
"non-functional" feature temporarily activated

1. Download latest WhatsApp version 2.11.508 with
voice-calling feature from the official website and
install it - http://www.whatsapp.com/android/
current/WhatsApp.apk .
2.Now open the "Android Terminal" app (available in
Google Play store for free), and type in su command
followed by am start -n com.whatsapp/
com.whatsapp.HomeActivity .
Before This Type SU