The normal state for this contact. The 'other' (not 'Normally')
state is the Active state for generating the xupstdContactActiveNotice
trap. If anyChange(3) is selected, then this trap is sent
any time the contact changes to either Open or Closed.
No traps are sent if the Contact is set to notUsed(4).
In many cases, the configuration for Contacts may be done by other
means, so this object may be read-only.