A.4/10 B.7/15 C.15/7 D.10/4
A.自己 B.轉給與該基站有電路相連的LTG C.轉給SSNC/CCNC D.轉給與該基站有信令鏈路相連的LTG
A.MTP B.SCCP C.TUP/ISUP