Hi all. I have a customer that wants to only permit internal only calls to a few phones. This was a surprise to me since I had asked this up front, and the answer was no. So I built a very simple CSS/Partition structure, as simple as it could be. Now, they tell me that they want to have a few phones limited to internal only, like 5 of them out of 200. Im thinking that Im going to have to redo all of that (CSS, Partitions, what phones belong to what partition). Is that right, OR is there another way to JUST block the 5 phones from calling out?