Outgoing call restriction on cisco devices?

I am here once again seeking the wisdom of networking veterans

I want to restrict outgoing calls having a certain pattern, let's say block outgoing calls to all numbers starting with 12

I did some digging and found out this could be done with after-hours call blocking, however i want to enable the block permanently

Any help would be appreciate as this might really give me a boost in my internship (even though it might be a really small thing for most of you)