Palm Treo 700p User Manual page 343

Position the earpiece closer to your ear to prevent sound leaking back into the
microphone. Keep your hand away from the microphone hole, which is on the
bottom right side of the phone.
If you're using the speakerphone feature with your device lying on a flat
surface, try turning the device face down (screen facing the surface).
I Hear My Own Voice Echo
Ask the person on the other end of the call to turn down the volume on his or her
phone or to hold the phone closer to his or her ear.
My Voice Is Too Quiet on the Other End
Be sure to position the bottom of the Treo device, or the hands-free
microphone, close to your mouth.
Check the signal-strength indicator. If the signal is weak, try to find an area
with better coverage.
I Hear Static or Interference
Check the signal-strength indicator. If the signal is weak, try to find an area with
better coverage.
If you're using a hands-free device enabled with Bluetooth® wireless technology,
try the following:
Move your Treo device closer to the hands-free device. Audio quality degrades
as the distance between your Treo device and hands-free device increases.
The effective range for a hands-free device varies among manufacturers.
Confirm that no obstructions, including your body, are between the Treo
device and your hands-free device. For example, move your Treo device to the
same side of your body as your hands-free device.
Section 7A: Help 331