Okay, I won't bore you with the personal details, but there's somebody that I really want to block from calling me. I'm on a campus landline network where you have to dial a prefix to make local or long-distance calls (it's 8, and with long-distance calls you have to do the whole "enter your personal billing number" thing so it gets billed to your student account). Some of the star codes work, but with *60 and *69 you just get busy signals. Is there anything I can do, or am I pretty much fucked?