This INTEGER is the actual number that determines drain order among sibling tap points under a Strict-Priority scheduler; a tap point with a higher priority value is always serviced first and can starve lower-priority siblings entirely under sustained congestion. This is a real risk admins must weigh when assigning this value, not just a cosmetic setting. Giving the voice tap point priority 7, the highest, guarantees it is always drained before a data tap point at priority 1, even if that starves the data traffic during a sustained voice-heavy period.