As a cloud worksharing service, your subscription includes an entitlement to BIM 360 Team.
Communicator for Autodesk® Revit® does not require Collaboration for Revit entitlement, but can also function with the BIM 360 Team entitlement. All Collaboration for Revit customers can use Communicator, as well as any customer who has subscribed to the BIM 360 Team offering.
If you open Communicator and do not have an BIM 360 Team entitlement, an "BIM 360 Team Project membership required" message displays. Click the "Subscribe" link to go to the Autodesk eStore to subscribe to the required service. With this service, you can use Communicator to chat with contacts in your Team hub on BIM 360.