If set to `true(1)' then UAT alarms will be sent.
Unavailable time (UAT) defines a state where a service is
unable to perform its normal task due to severe errors for a
longer period. It begins at detection of ten consecutive SES
events and ends at detection of ten consecutive non-SES
events. In both cases, the 10s are considered part of
unavailable respective available time and effects the
visibility of G.826 PM events (they are delayed 10s)
Entry and exit of UAT is declared by raising and clearing an
UAT alarm (if enabled)