Co-workers added to your RingCentral Video Pro and Pro+ account will see the same set of contacts because of your shared email domain, which will allow them to start conversations with one another and join video meetings.
If you cannot invite a new user, this could be due to disabled permissions. Please reach out to a company account admin to get this permission.
Note: If you have a RingCentral Video Pro+ account and you’d like to give a user a RingCentral Video Pro+ license, an admin will need to
assign that license to the user after the fact.