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• Check the status of signal reception. If necessary, move to another location where recep-
tion is better.
Poor reception.
Check the following:
• The network signal is too weak at your current location--for example, in a basement or
near a tall building-because wireless transmissions can not effectively reach it.
• The network is busy at the current time (for example, during peak times, there may be
too much network traffic to handle additional calls).
• You are too far away from a base station for your network operator.
Echo or noise.
Check the following:
• Poor network trunk quality on the part of your network operator.
• Poor local telephone line quality.
SIM card error.
Check the following:
• SIM card malfunction or damage.
• SIM card inserted improperly.
• Debris on the SIM card contacts.
There are echoes when using VoIP (Voice over IP) phone.
Check the following:
• Suggest to use VoIP in a spacious area or with earphones in order to get the best recep-
tion and quality.
Message Problems
Cannot send or receive text messages.
Check the following:
• Is the phone in the Flight mode? Switch it to the Phone on mode.
• Is the signal strength strong enough? Try moving to a different location to obtain better
signal reception.
Cannot send or receive multimedia messages.
78 Troubleshooting Information
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