Are the FNaF 2 calls pre-recorded?

[scope.wad]

If you have seen the FNaF 2 trailer, the phone guy says: "Hello? Hello? Uh, if you're hearing this, chances are you've made a very poor career choice."

''If you're hearing this'', what if the night 6 call wasn't recorded for us and it was for the dayshift guard that was the victim of the bite of 87 (If Fredbear made the bite of 83, obviously)?

[76561198158303063]

The Night 6 call is live. Phone Guy says "What are you doing there?" Obviously, he's calling Jeremy to ask him why he didn't take the night off.

I don't think the others are Pre-recorded, either.