source
With the DO-Video Call, WhatsApp has launched group audio-video calling facility. Although the feature is supposed to be launched by the end of the year, the feature has been unveiled from yesterday, the messaging app. Facebook announced that this facility will be launched on WhatsApp in their annual developer conference in WhatsApp. For this, they were also testing the functionality of the feature on specific number of users. By using the new facility, you can initially make video calls with four people together. There will be no additional trouble for this. To make a group call, first call a person. After clicking on the 'Add Participant' button on the top right of the app, you can make a video call with all your friends.
In phases, all iOS and Android users will get the benefit, says WhatsApp Authority. So many times the app could be used to exchange audio and video calls with one.
source
This user is on the @buildawhale blacklist for one or more of the following reasons: