hello Mik and Vivek,
i need someone to confirm what I’m saying : the network shall not “page” the busy mobile, because the MS is already in dedicated mode. There is no need for paging… The MSC will start establishing the connection immediatly.
Therefore, IMO, the MS receives a Call Setup message on the FACCH, directly, without Paging. And MS could reply with either CALL CONFIRMED or RELEASE (as explained by Mik, because I have no knowledge about that).