palmOne Treo 650 - Smartphone 23 MB Using Manual page 146

You can also adjust the
ringer volume by pressing
the Volume button when a
call or music is not in
progress.
144 :: Phone settings
Assigning a caller ID photo
1. Press Phone/Send
2. Select the Contacts favorites button.
3. Open the contact you want to give a photo caller ID.
4. Select the Picture box.
5. Select Camera to take a photo and add it to this contact entry when you save
the photo (if your Treo includes a camera), or select Photos to add an existing
photo to this contact entry.
6. Select the photo you want to assign to this contact.
7. Select Done.
.