WhatsApp is reportedly testing the group voice calling and video calling features for its future releases. According to WABetaInfo, It is confirmed that the company is working on a group voice calling feature. A group video calling feature is also in the works and is partially confirmed.
According to the report, there are many hidden references to voice calls in the 2.17.70 iOS beta update for WhatsApp. The beta app is said to send a request to the server to ask if the user being called is in another group call. The beta update reportedly shows many references to audio calls, but fewer indications for video calls were found. The twitter user has also said that the feature will probably be rolled out by next year.
Group voice calls: confirmed ✅
Group video calls: partially confirmed ⚠️
There are a lot of hidden references about group voice calls, but there is only one reference about group video calls.
But the quoted image should confirm both