thxita, that particular line is stolen from the 2004 DVD subs, to me it actually sounds like the audio is cut off on call 348 five, but the DVD subs had it FUN, it's your choice.
For example I just read that the "are you now or have you ever been?" line was from MacCarthy period when they usd to ask "are you now or have you ever been a member of the Communist Party?".
Yeah, Murch or Lucas talk about it in the audio commentary IIRC.