This object specifies the time interval used to monitor
the ciscoGspUPUReceived and ciscoGspUPUTransmitted
notifications for specific user part and signalling point
instance. The first occurrence of ciscoGspUPUReceived and
ciscoGspUPUTransmitted notifications are sent and the
further occurrences of notifications in this interval
are suppressed.
At the end of this interval, a notification is sent with
total number of UPU MSUs transmitted or received during
this interval.