decoding raw sdcch

I am trying to decode raw bits god from burst_ind to get detail info about channel assignment. but i am unable to do so. here are steps i used. take raw bites (23 bits) create lapdm entity and then provide message and try to decode (fails) i get correct system information but not asssignment message. can some one please list details on decoding sdcch. i am using burst_ind branch. -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243