A.000 B.001 C.010 D.011
A.CHAP=2,表示Immediate Assignment on TCH, SDCCH Chosen First B.如果CHAP=2,則在立即支配過程中永遠不會占用SDCCH C.如何為短消息業(yè)務,不管CHAP設為1還是2,均不會立即指配到TCH上 D.CHAP=3,表示Immediate Assignment on TCH, TCH Chosen First, GSM Phase 2 Mobiles, "Channel Needed" Supported
A.DIRECTED RETRY只能在TCH之間進行切換 B.FORCE DIRECTED RETRY不需考慮鄰小區(qū)電平 C.DIRECTED RETRY在某些情況下能夠縮短手機建立呼叫的時間 D.FORCE DIRECTED RETRY不能在微蜂窩中進行