According to the manual,
Step 1
Press the menu/ok button ONCE then the up arrow button ONCE.
The display shows MAIN MENU > Answ. Machine
Step 2
Press the MENU/OK button.
Display shows ' AnswMachine>Play
Step 3
Press the MENU/OK button
> the first new message or if non, the first old message will play.
* Use the up or down arrow buttons to adjust the speaker volume.
* Press PHONE button to play message through handset.
Step 4
Press the MENU/OK button then press 'dpwm arrow' or 'up arrow' buttons to control the playback menu:
- Repeat
- Next Message
- Prev. Message
- Delete
- Delete all.
Use the BACK button to exit the menue or press HANG UP to go to standby mode.
Alison, November 2008