A threshold defined for the number of customer profile
rejected overflow calls (crpmsCpOverflowRejections) as a
percentage of the number of attempted overflow calls
(crpmsCpAttemptedOverflowCalls) which, when crossed,
triggers a crpmsRisingAlarm or a crpmsFallingAlarm
notification (refer to the notification definitions in this
MIB for more details).
A value of 100 percent cannot be exceeded and therefore
disables this threshold setting. A value of 0 percent is
always exceeded.