If your on LC the only way they will even call you for a report less than 12 hours is if you put in a YS or a GS. In both of those cases it would be a proffer and if it's for a YS you get no extra pay and if it is a GS you get paid over guarantee for that day. If you have not put in a YS or a GS and they are calling you it would be for an IA and in that case I don't think it is a proffer. As far as my contract knowledge goes, the only time a trip is not a proffer under 12 hours is if you are on SC or if you answer your phone and admit you are yourself when they are calling for an IA.

Edit Alert....I just noticed that note from section 23 that Johnson quoted and never noticed or cared about that note before. So anything under 12 hours is always a proffer even an IA call if you are on LC. Good tidbit to know.