Palm Treo 650 Using Manual page 45

To silence the ringer while your phone is ringing, do one of the
following:
• Press the Volume button or any key on your Treo smartphone except Phone/Send,
Power/End, or the 5-way.
• To immediately silence all system sounds including the ringer, slide the ringer
switch to Sound Mode Off
When you silence the ringer, you can either answer the call or let it ring through to
voicemail.
If music is playing, and a call arrives, the phone rings softly. The audio continues
playing, but you won't hear it during your call. To pause the music, press the
Side button.
To answer the call, do one of the following:
• Using the 5-way, select the onscreen Answer button.
• Press the headset button (if a headset is attached).
.
Receiving calls :: 43