Get different software then, there's plenty of options out there these days like GoToMeeting, Slack, Skype, Highfive, etc. If you don't want people in the same

Get different software then, there's plenty of options out there these days like GoToMeeting, Slack, Skype, Highfive, etc. If you don't want people in the same room on different chats (which still works with headsets), then you can buy a few USB room mics for the office like the Blue Snowball (~$50).