On Facebook Messenger, you can add new people during calls, audio/video
Facebook Messenger now allows you to add more friends in the audio and video chat, even when they are already in progress.
With a new feature introduced with the last update available for some time, users can add one or more people to video calls and audio, even if the call is still in progress. Will no longer must hang up to manually add new people.
To add someone while we're in audio or video chat, simply tap the new icon “Add person” and select the user you want to add.
The feature is now available on Android and iOS.
Link to the original article: On Facebook Messenger, you can add new people during calls, audio/video