I just encountered this problem and arrived here looking for an answer. It's absolutely ridiculous if an admin CAN'T restrict the outbound caller ID numbers a user can pick from. I have numbers in my inventory that aren't assigned to anything yet, and Ring Central thinks it's fine for a user to choose one of those? Or, a user in a site in one state can choose the local number for another site in a different state? That makes NO sense.
I just encountered this problem and arrived here looking for an answer. It's absolutely ridiculous if an admin CAN'T restrict the outbound caller ID numbers a user can pick from. I have numbers in my inventory that aren't assigned to anything yet, and Ring Central thinks it's fine for a user to choose one of those? Or, a user in a site in one state can choose the local number for another site in a different state? That makes NO sense.