The Ring property returns a Boolean value that indicates whether an alarm is set to ring for an item.
Appointment, Event, and Task objects
Boolean
Read/write
The Ring property must be set for alarms to ring. Although an application can create a new alarm and set its AlarmAmount and AlarmTypeUnit properties, the alarm will not ring by default — you must set the Ring property to True for an alarm to ring.
AlarmAmount
AlarmTypeUnit
RingAgain
RingOriginal