D-Link DG-102S VoLP Station Gateway Quick Install Manual page 5

Next, click on "Config Device IP Address." The following window
will appear. Click on the Save button at the bottom right of the
window to save the settings.
Under PPPoE settings for DSL users: enter the User Name and
Password provided by your ISP.
Click on "Configure Call Agent IP Address. Enter the Notify Entity
and RGW Name provided by your ISP.
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