A.Voice domain for E-UTRAN
B.Voice First for E-UTRAN
C.Voice Prefer for E-UTRAN
D.Voice Call for E-UTRAN
A.RRCConnectionRequest
B.RRCConnectionReestablishRequest
C.RRCConnectionSetupComplete
D.RRCConnectionSetup
A.S1-APHANDOVERREQUIRED
B.S1-APPATHSWITCHREQUEST
C.S1-APHANDOVERNOTIFY
D.X2-APHANDOVERREQUEST