Protocol Sequence - Voice Call (MO)

(1) UE <--> NW : Registration (Combined or Non-Combined)

(2) UE <--> NW : < IDLE >

(3) UE  : < Make a MO Voice Call >

(4) UE --> NW : RRC CONNECTION REQUEST

(5) UE <-- NW : RRC CONNECTION SETUP

(6) UE --> NW : RRC CONNECTION SETUP COMPLETE

(7) UE --> NW : CM SERVICE REQUEST

(8) UE <-- NW : AUTHENTICATION REQUEST

(9) UE --> NW : AUTHENTICATION RESPONSE

(10) UE <-- NW : SECURITY MODE COMMAND

(11) UE --> NW : SECURITY MODE COMPLETE

(12) UE --> NW : SETUP

(13) UE <-- NW : CALL PROCEEDING

(14) UE <-- NW : RADIO BEARER SETUP

(15) UE --> NW : RADIO BEARER SETUP COMPLETE

(16) UE <-- NW : ALERTING

(17) UE <-- NW : CONNECT

(18) UE --> NW : CONNECT ACKNOWLEDGE