A.OMC1 B.OMC2 C.DEBUG1 D.DEBUG2
A.ODF B.DDF C.PDF D.DF
A.CM SERVICE REQUEST B.ACTIVATE PDP CONTEXT ACCEPT C.SETUP D.CM SERVICE ACCEPT
A.RAB ASSIGNMENT REQUEST B.RAB ASSIGNMENT RESPONSE C.SECURITY MODE COMPLETE D.RADIO LINK SETUP REQUEST
A、11.25 B、30 C、40 D、50