ErabFlowFirstSwitch: This option specifies the policy for handling the conflicts between handover and bearer procedures. If this option is selected and a handover procedure conflicts with a bearer procedure such as E-RAB setup, modification, or deletion, the eNodeB performs as follows:
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If the handover is not for CSFB or the SRVCC procedure conflicts with a QCI 1 E-RAB release procedure, the eNodeB processes the bearer procedure first.
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If the handover is for CSFB or the SRVCC procedure conflicts with another E-RAB-related procedure, the eNodeB processes the handover procedure first.