Skype for business takes care of one on one or 100’s of attendees. I work from home for a large IT company and employees are all over the world. Skype is what we use for all of our meetings, from one on one meetings with a manager or training a new employee to small team meetings of 4-20 people or project meetings of 80 to all account meetings with over 1k. You can use a whiteboard or share anything on your PC.
I guess it’s good, although I’d have to get used to it. May not have any choice now that we’ve actually started to test people.