D-Link DVX-2000MS-10P - VoiceCenter IP Phone Sys 10P Quick Installation Manual page 14

Configure the DVG-3104MS Gateway
In Microsoft Response Point Administrator, use the following steps
® ™
to configure the gateway:
Click the Phone System tab at the top of the screen if necessary.
In the Tasks panel, under Phone Service, click Add Phone Service
to launch the Configure Phone Service Wizard.
Select the check box confirming the gateway is connected and
plugged in. Click Next to continue.
D-Link VoiceCenter Quick Install Guide 1