Draytek Vigor2820 Series User Manual page 46

Enable/Disable
DSL Modem Settings
38
Click Enable for activating this function. If you click Disable, this
function will be closed and all the settings that you adjusted in this
page will be invalid.
Set up the DSL parameters required by your ISP. These are vital
for building DSL connection to your ISP.
Multi-PVC channel - The selections displayed here are
determined by the page of Internet Access – Multi PVCs. Select
M-PVCs Channel means no selection will be chosen.
VPI - Type in the value provided by ISP.
VCI - Type in the value provided by ISP.
Encapsulating Type - Drop down the list to choose the type
provided by ISP.
Protocol - Drop down the list to choose the one provided by ISP.
If you have already used Quick Start Wizard to set the protocol,
then it is not necessary for you to change any settings in this group.
Modulation – 是做什麼用的?
Vigor2820 Series User's Guide