D-Link DPH-128MS User Manual page 13

Section  - Installation
For this step, you will add a new user and assign that user to the
phone you just configured. Click Assign User to open the New
User screen.
Click Assign User...
On the Identification tab, in the User Type box, select Person from the drop
down menu if it is not already selected.
In the Name boxes, type the first and last name, and optional nick names or
titles of the person who will use this phone. You should specify nicknames and
titles if you think callers will use them when asking for this user.
In the Extension number box, change the extension number if desired and
click OK to continue.
Click OK
D-Link DPH-18MS User Manual 1