A.SLF B.BGCF C.MGCF D.IM-MGW
A.MSC与MSC间的接口 B.MSC和HLR的接口 C.HLR和VLR的接口 D.VLR和VLR的接口
A.Request Status Report B.Request Report BCSM Event C.Connect to Resourse D.Event Report BCSM
A.0 B.1 C.16 D.32
