Palm Treo 755P User Manual page 310

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.
My Device Hangs Up When I Hold It to My Ear
You may be accidentally pressing the onscreen Hang Up All button with your cheek. Try
holding the device so that your face doesn't press against the screen. If this is not
convenient, you may want to disable the screen's touch-sensitive feature during active calls
(see "Locking Your Screen" on page 274).
My Device Seems to Turn Off by Itself
If a system error and reset occur, the Treo device automatically turns the phone on if it was
on before the reset. However, if the device can't determine if your phone was on before the
reset, the phone does not automatically turn on (see "Turning Your Device's Phone On and
302 Section 7A: Help