WhatsApp calling allow users to call other WhatsApp users for free.
However, a minute of WhatsApp call costs around 0.15 MB to 0.20 MB of 3G data This means a 5-minute call costs around 1MB of 3G data.
The call quality on 3G networks is decent but on 2G, there is a considerable amount of lag.
Does a WhatsApp call use data?
WhatsApp Call works via the Internet i.e. it uses your data plan, not your network’s voice calling ability. If you are using WhatsApp Call over a Wi-Fi connection, your phone’s network carrier (e.g. AT&T, Vodafone, etc.) won’t charge you anything.
Does voice call use a lot of data?
Most users are unaware of how much data does VoIP use on their conversations consume, or the rate at which they use it. The short answer is: “it depends”. VoIP data consumption ranges between 0.5 megabytes (MB) per minute of call (on the G.729 codec) and 1.3 MB/minute on G.711.
Can you make a WhatsApp call without WIFI?
If you make the phone calls over a WiFi network, then you no longer incur the mobile data rate as the phone uses the WiFi for its internet connection.