All the WhatsApp version from version 2.12.23 includes WhatsApp Call by default but for some people it might be annoying especially in the office hours. Free VOIP calling is a great feature but if you are not using it, better disable it.
The alternative way is to disable WhatsApp Call completely using app called as Disable WhatsApp Calls by didi products. It’s completely a free app which disables WhatsApp Call dialer with one click.
- Once click disable or enable WhatsApp Call dialer
- When Settings are disabled, call will be converted into normal call from your cellular network.
- When you get a WhatsApp Call, app will auto turn it into a normal call.
Note: This app currently works on devices running Android 4.4 Kitkat and higher[Will also work on your Android Lollipop phone/tablet too]. So a total of 50% of devices are eligible for this app.
Disable WhatsApp Calls Play Store Link