![background image](http://html.mh-extra.com/html/samsung/m8800b/m8800b_user-manual_1193102064.webp)
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Your phone displays “Service
unavailable” or “Network error.”
• When you are in areas with weak signals or
poor reception, you may lose reception.
Move to another area and try again.
• You cannot access some options without a
subscription. Contact your service provider
for more details.
You enter a number, but the call is not
dialed.
• Ensure that you have pressed the Dial key:
[
].
• Ensure that you have accessed the right
cellular network.
• Ensure that you have not set call barring for
the phone number.
Another caller cannot reach you.
• Ensure that your phone is turned on.
• Ensure that you have accessed the right
cellular network.
• Ensure that you have not set call barring for
the phone number.
Another caller cannot hear you
speaking.
• Ensure that you are not covering the built-in
microphone.
• Ensure that the microphone is close to your
mouth.
• If using a headset, ensure that it is properly
connected.
The phone beeps and the battery icon
flashes.
Your battery is low. Recharge or replace the
battery to continue using the phone.