T.I. -- VH1 Cameras NOT ALLOWED at Halfway House

T.I. will not be allowed to tape his new VH1 reality show inside the walls of the halfway house where he's serving the remainder of his sentence ... a rep for the facility tells TMZ.

Cameras were rolling from the minute T.I. was released from an Arkansas prison Wednesday, capturing his journey from AR to the Dismas Charities halfway house in Atlanta.

But a rep for Dismas tells us .. there is “absolutely no way” the facility will allow VH1 to bring cameras INSIDE the halfway house... saying, "no, it is just not going to happen."

Too bad for the show -- because T.I. will be participating in some compelling, personal moments during his stay ... including a "faith based" program to help him transition back into the real world.

The facility seems like a pretty kick-ass place compared to prison -- with basketball courts, an exercise room, racquetball courts and even a tennis court.