User's Manual

Page 142 MP500 User’s Manual v.0.12
supplied by your network operator.
“No service” is displayed
 The network connection was lost. You may be in a
weak signal area (in a tunnel or surrounded by
buildings). Move to a different location and try again.
You have entered a number but it was not dialed
 Have you pressed the Dial key?
 Are you accessing the right cellular network?
 You may have set an outgoing call barring option.
Your correspondent cannot reach you
 Is your phone switched on (Power on/off key pressed
for more than two seconds)?
 Are you accessing the right cellular network?
You may have set an incoming call barring option.
Your correspondent cannot hear you speaking
 Have you switched off the microphone?
 Are you holding the phone close enough to your
mouth? The microphone is located at the bottom of
the phone.
The phone starts beeping and “Low Battery”
flashes in the display
The battery is insufficiently charged. Replace the battery and
recharge it.
The audio quality of the call is poor