Ideally, you’d have a generic meeting link for a team for example http://meetings.hubspot.com/techsupport/technicalsupport. This can be added to templates or snippets so that when it’s applied to an email it can be clicked by the contact and they select a suitable time. This will then allocate to an available team member based on their calendar. At this point, it really isn’t round-robin or a team meeting link.