derivedDataType ProcessBehaviourDT

EcimDerivedString with length constraint (7..9) and pattern restriction.

DELAYED = CSCF application processes will get some extra time up to 55 seconds to be terminated gracefully.
IMMEDIATE = CSCF application processes will be terminated directly. SIP session that has not yet been established (when reconfiguration happens) will fail as CSCF will lose SIP state information due to the terminated processes.