Sony Ericsson P900 User Manual page 172

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Communication problems
Telephone does • The received signal can be too weak, possibly
not work because you are being shielded from the signal.
Check your display signal strength indicator.
Move outdoors or up from the ground to obtain a
sufficiently strong signal.
• Make sure the P900 is not set into Flight mode.
• Your P900 might be busy sending or receiving
data or e-mail.
• Check the settings for diverting or restricting
calls. See 'Divert calls' on page 53, 'Accepted
callers' on page 53 and 'Restrict calls' on
page 53.
• If
Emergency calls only
screen, you are not allowed to use the network
within range. You can, however, usually make an
emergency call using the emergency number.
• If No network
in an area that is not covered by a network or the
received signal is too weak.
Cannot hear • Increase the ring signal volume.
incoming call
• Increase the ring signal volume.
172
is displayed on the
is displayed on the screen, you are
The persons I • Make sure you do not cover the microphone
talk with has when you talk. You find the microphone at the
problems bottom, next to the connector.
hearing what I
• You could be almost out of network range. The
say
sound improves with a better network
connection.
Cannot use • Your subscription does not include WAP. Check
WAP with your service provider.
• The settings are not correct. Enter new settings.
Contact you service provider or visit
www.sonyericsson.com/support
WAP configurator.
Cannot send • Your subscription does not include SMS or
nor receive MMS. Check with your service provider.
SMS or MMS
• Check with you service provider that you have
entered the correct Service Centre phone
number.
• Check the settings in the Control panel. Contact
you service provider or visit
www.sonyericsson.com/support
MMS configurator.
• Make sure that Flight mode is deactivated.
• Phone memory might be full. Delete some
pictures or music, for example.
and use the
and use the
Troubleshooting