3.7.7.3 Begin Phase Zero
The Begin Phase Zero event MUST be signaled with the following arguments:
An Enlistment object
If the Begin Phase Zero event is signaled, the Superior Transaction Manager Facet (section 1.3.3.3.4) MUST perform the following actions:
Send a PARTNERTM_PROPAGATE_MTAG_PHASE0 (section 2.2.9.1.1.1.17) message using the connection.
Set the connection state to Phase Zero.