3.5.1.3.3 Active
The following events are processed in this state:
Receiving a TXUSER_PHASE0_MTAG_PHASE0REQ (section 3.5.5.2.1.3) message
Receiving a TXUSER_PHASE0_MTAG_PHASE0REQ_ABORT (section 3.5.5.2.1.4) message
Canceling Enlistment as a Phase Zero Participant on a Specific Transaction (section 3.5.4.1)