Mugen Application

1)Root access
2) whatsapp (version 2.11.508 or up. you can use the whatsapp.apk in the attachments.)
3) terminal emulator

1) make sure you have the right version of whatsapp
2) open terminal emulator in your android phone
3) type in the following:

4) whatsapp should now open with the calling feature enabled.

1) if you want to call someone, the other person must have done the same thing (enabled this feature) in order for that person to receive your call
2) you need to do this every time you want to call
3) someone who already has this feature needs to call you in order for this feature to be activated, I know, that sucks.