Draytek Vigor2500V Manual page 92

The detailed descriptions for each setting are:
Enable Schedule Setup: Check to enable the schedule.
Start Date (yyyy-mm-dd): Specify the starting date of the schedule.
Start Time (hh:mm): Specify the starting time of the schedule.
Duration Time (hh:mm): Specify the duration (or period) for the
schedule.
Action: Specify which action should be applied by Call Schedule during
the time period of the schedule.
Force On: Specify the connection up.
Force Down: Specify the connection down.
Enable
dial-on-demand and the value of idle timeout should be
specified as following Idle Timeout field.
Call Schedule
Dial-On-Demand:
8-3
Specify the connection to be