AT&T 1080 Corded telephone - Manual (Page 15)

8
Getting started
Directory card
To write names and/or phone numbers on the directory card, follow the steps
below:
1. Remove the clear plastic cover by inserting a small item such as paperclip
into the hole on the lower right corner.
2. Pull out the directory card.
3. Write the information on the directory card.
4. Replace the directory card and then the plastic cover.
NOTE: There is a replacement directory card in the telephone package. You
can use it to replace the current one on the telephone if necessary.