As a top-level element of the Calendar class, the Reminder element is an optional element that specifies the number of minutes before the calendar item's start time to display a reminder notice. It is used in ActiveSync command requests and responses as specified in section 2.2.2.
As an optional child element of the Exception element (section 22.214.171.124), the Reminder element specifies the number of minutes before a calendar item exception's start time to display a reminder notice. A command request or response has a maximum of one Reminder child element per Exception element. If the Reminder element is not specified as a child element of an Exception element, the value of the Reminder element for the exception is assumed to be the same as the value of the top-level Reminder element.
The Reminder element is defined as an element in the Calendar namespace. The value of this element is an unsignedInt data type, as specified in [XMLSCHEMA2/2], or an EmptyTag data type, which contains no value.<15>