D-Link VoiceCenter DVX-2000MS User Manual page 28

Section  - Installation
Select one of the D-Link DPH-125MS IP Phones you just connected
and click Next to continue.
Note: If you do not see the phone you just connected, click Refresh
in the Tasks panel. If you still do not see the phone, make sure that the
phone is connected to the LAN, unplug the phone from the electrical
outlet, and plug it back in. After plugging in the phone, you may need
to wait at least sixty seconds before the phone is initialized and ready
to be configured.
Click Next
For this step, you will add a new user and assign that user to the phone
you just selected. Click Assign User to open the New User screen.
Click Assign User
D-Link DVX-000MS User Manual