As due to some technical reasons whatsapp publishers and developer has dropped calling features in whatsapp and now onhax presents the apk to unlock the calling features with the default whatsapp apk as well to call friends without adding them as well. Below is the method to unlock this feature. Root device is required to use this feature.
Step 1 – Extract files and install the whatsapp apk provided below .
Step 2 – Now install the apk for “Enabling Whatsapp Calling Feature” within extracted file.
Step 3 – Run the Apk downloaded and installed in step 2 Give whatapp superuser permission.
Step 4 – It’s Done. Calling Feature is Enabled.