Enabling a rule set means to set the days or date range that it will be active. Cisco Unity Connection uses the schedule to apply rules to your incoming phone calls. You can schedule the active period in advance in the Personal Call Transfer Rules web tool.
Disabling a rule set means making it ineligible to be active.
Connection allows more than one rule set to be enabled within the same time period. When more than one rule set is enabled, a set enabled within a range of dates takes precedence over a set enabled by days of the week. When the range of dates is no longer applicable, the set enabled by days of the week is restored. Multiple rule sets cannot be enabled on overlapping dates.