What do you mean by voice and video? Why would I want to have voice in a forum? I think that would be akin to receiving voice messages in messengers. Or do you

What do you mean by voice and video? Why would I want to have voice in a forum? I think that would be akin to receiving voice messages in messengers. Or do you mean, that for these kinds of things a widget can be displayed? That certainly is possible in old style forums. It is just HTML, an embed code away.