Draytek Vigor2500V Manual page 95

4. Assign these two profiles to the PPPoE Internet access profile. Now, the
PPPoE Internet connection will follow the schedule order to perform Force On or
Force Down actions by time plan which has been predefined in the schedule
profiles.
8.3 Example of ISDN ISP users
Because you need to send important files to your company from your home
via ISDN, you can use the ISDN interface of Vigor2500Vi series to set the
duration of ISDN be always-on (Force On) from 9:00 to 12:00 for whole week.
The rest of time shall be on ISDN connection. i.e. The ISDN shall be Force
Down.
Call Schedule
8-6