To record directory names:
Press the PROGRAM Button
Press the HOLD Button
When it asks for your password enter:
Your password and then hit #
Press the 6 key
Press the 2 key
Enter the extension number, follow the prompts to record the name, press #, enter the first three letters of the name (enter the numbers associated with the letters of the name, for example for Bill you would enter 245 or for James you would enter 526)
Press the # key
Enter next extension