A phone button appears in the new version of Facebook Messenger's chat interface

Absrtact: If you have updated Facebook Messenger These two days, you must have found a phone button in the new version of the chat interface. This new free call feature was previously limited to iOS users in the UK, the United States, Canada, and some special

If you've updated Facebook Messenger in two days, you must have found a phone button in the new version of the chat interface.

The new free call feature was previously restricted to iOS users in the UK, the US and Canada, as well as Android users in specific countries. After updating today's version, Facebook Messenger users around the world can use WiFi or mobile network traffic to call their Facebook Messenger friends.

The chat app WhatsApp, which was recently bought by Facebook for 19 billion dollars, also announced in MWC that it would add voice calls in the second quarter of this year, as well as iOS and Android users.