I am working with a customer that has an existing CUCM deployment where all the phone lines are in the NULL partition (<none>). We are adding a couple phones that need to be able to dial out, but should not be able to dial some of the users with phones in the NULL partition. Is there a way to block calling to NULL? (I assume not). I have tried adding the new lines into a parition, and adding a blocking route pattern, or translation pattern, but that does not work, lines in the Null partition seem to take precendence.
At this point, we don't want to change the existing users to add paritions to the phone lines (with the way the CSS is done at this site, this is not a small project).
This is far from best practice, but I am hoping someone has an idea that may work.