Zoom Meetings was the standard video conferencing platform from Zoom, but now it's called Zoom One, and the higher tiers include Zoom Phone. Zoom Rooms is the exclusively business-facing version of Zoom for collaboration, which integrates with third-party video conferencing hardware and offers additional features, like one-click meetings and multi-share. Simply put, unless you have an in-demand conference room at your office, you can safely stick with Zoom One's cheaper plans, which include Zoom Meetings.