Even just 7-8 years ago, the pre-Teams solutions (like Skype4Business!) were so abysmally bad, nobody were using them for anything but occasional meetings. And

Even just 7-8 years ago, the pre-Teams solutions (like Skype4Business!) were so abysmally bad, nobody were using them for anything but occasional meetings. And essentially never from your own desk, it was 3-20 people in one room calling 3-20 people in another room.