Facebook updated its mobile app Messenger for iOS and Android. In new version there is the option to quickly add users to an existing voice or videovisor.
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To add a new participant need to touch the display, click on the icon with the «+» sign and select the desired user. Before the changes such an operation demanded an end the current call and create a new with a large number of participants.
One videovisor Messenger can connect up to 50 users, but to broadcast video can only six.