I've used TeamSpeak for that at an old job. We used it for pairing and team meetings. We couldn't all fit in the office at the same time (10 people, 100 square

I've used TeamSpeak for that at an old job. We used it for pairing and team meetings. We couldn't all fit in the office at the same time (10 people, 100 square feet w/desks wasn't happening), so we had team meetings over TS. Was great. Would definitely do it again.