AUTOVON's Multi-Level
Precedence and Preemption (MLPP) is a five level system of
precedence that allows higher level users to preempt
facilities in use by lower precedence subscribers.
The five
levels in descending order of precedence are: Flash Override, Flash,
Immediate, Priority, and Routine.
The MLPP
capabilities are activated at selected subscriber locations through
the use of special sixteen button telephone sets.
The ultimate red Princess ™.
A precedence call causes
the switch to search for idle internodal channels or access lines.
When no idle facilities
are available, the preemption feature permits a higher precedence
call (calls with an established precedence level other than routine)
to disconnect a trunk or line being used by a call of lesser
precedence on a ruthless basis and then seize the facility
for its own use.
Flash and
flash override precedence is reserved for DoD personnel
with responsibility for key decisions, strategic and tactical
commanders at all echelons, nuclear forces, and others in DoD
charged with accomplishing military missions in support of
national objectives.
