On SMC1.0, Conferences longer than 360 minutes cannot be planned. the system shows that "Duration of planned conference is too long, acceptable are only numbers from (20 min., 360min) range".
On RM system, select “System > System Settings” , Select the "Schedule Parameters" tab.
in "Maximum/Minimum reservation duration" we can set the maximum/minimum duration of a reserved conference.
the time range is adjustable, default time range is from 20 min to 360 min, so customer cannot plan a conference longer than 360 min.
we shoul learn more details about the options on RM system.