Video calling app(older posts dont work)

Hello everyone.

I want to make an app using a service like I want to connect two groups of users. If someone presses to be in the first team, he will be connected only with one pressed person to be in the second group. So if there is a group with one-to-one people, no one else can join this group. In the app, many groups can exist only with these two teams.

Something like this:

Can anyone help me?

Because I searched everything, all the posts about video calls are expired, and the aia’s don’t work, even if I updated the extensions.