Application starts to compete with Messenger, Skype and Duo.
To use the feature, the user must install the version 2.16.318, directly from WhatsApp site via application testing program (see here). Because the program is not downloaded from Google Play, you need to authorize that Android allows its installation.
Before starting video calls, we must also give approval for the app to use the microphone and the camera phone.
The full operation of the new feature has some drawbacks. If the call recipient does not have the new version of the application, the connection is not made. A notification will appear warning you that the action is not possible.
Video calls have already been released, also on a trial basis, for Windows, Microsoft. Once released the tests, the update should not take to arrive on a permanent basis for the remainder of the users of Android, Windows and the iOS from Apple.
Recently, WhatsApp won other updates, such as drawings and send GIFs, as well as to include emoji, texts and drawings on photos sent to contacts.
Video calls can strengthen raids between WhatsApp and telephone operators, who have complained of the application allows phone calls. The argument is that the Facebook service uses telephone numbers, administered by companies to release the call, but not the ark with all regulatory requirements with the National Telecommunications Agency (Anatel) these companhas have to bear.