User's Manual Part 2

Troubleshooting Information 77
• Check the status of signal reception. If necessary, move to another location where recep-
tion is better.
Poor reception.
Poor reception.Poor reception.
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.
Echo or noise.Echo or noise.
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.
SIM card error.SIM card error.
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
There are echoes when using There are echoes when using
There are echoes when using VoIP (Voice over IP)
VoIP (Voice over IP) VoIP (Voice over IP)
VoIP (Voice over IP) phone.
phone.phone.
phone.
Check the following:
• Suggest to use VoIP in a spacious area or with earphones in oreder to get the best recep-
tion and quality.
Message Problems
Cannot send or receive text messages.
Cannot send or receive text messages.Cannot send or receive text messages.
Cannot send or receive text messages.
Check the following:
• Is the phone in the Flight
FlightFlight
Flight mode? Switch it to the Phone on
Phone onPhone on
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.
Cannot send or receive multimedia messages.Cannot send or receive multimedia messages.
Cannot send or receive multimedia messages.