Here is the direct link to the User's Manual for that model of AT&T phone:
To view the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual.
You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer.
See page 16 of the manual for detailed instructions on HOW TO RECORD A NEW OUTGOING ANNOUNCEMENT.
The instructions in the manual basically read as follows:
To record a new outgoing announcement:
1. When the handset is in idle mode, press MENU/SELECT
to enter the main menu.
2. Press MENU/SELECT again.
3. Press CID or DIR arrows to scroll to ANS SYS SETUP,
then press MENU/SELECT.
4. Press CID or DIR arrows to scroll to ANNOUNCEMENT,
then press MENU/SELECT, the system announces, "To
play, press 2. To record, press 7."
5. Press 7 to record an announcement, the system
announces, "Record after the tone, press 5 when you
6. Press 5 when you finish the recording. Your recorded
To listen to the recorded announcement again, press 2 after playback is
To record a new announcement, press 7 and follow the above steps.
I hope that was helpful to you, good luck and take care.