I am working with a MICS 6.0 provisioned with a PRI off of a GDT-5 CO. When transfering a caller off the Norstar, it appears to take two channels for the duration of the call. I know that the GTD-5 supports 2BCT (2-B Cannel Transfer) which is supposed to release both channels and process the call only through the CO. Does the Norstar support this and if so, how is this set up?