WhatsApp finally lets everyone make group video calls
The company is now starting to gradually roll out group video and audio call functionality to its userbase. Once you start a call, you'll be able to add up to three more people for a maximum of four participants.
It appears that with this limitation WhatsApp is
WhatsApp already has more than 1.5 billion users, so for most people switching from Skype for business conference calls won't even be a question of installing another app. Of course, there's the difference that WhatsApp requires a phone number for each account. While there are existing workarounds to that, we doubt that most people would want to go through the hassle.
Either way, more choice in apps is always better for us, the end users, so we're glad to see this core feature arrive on WhatsApp. Expect it on your device in the upcoming days.
source: WhatsApp via AndroidCentral