Panasonic CY-BT100U Manuel D'instructions page 30

Troubleshooting
Problem
Talking volume is low
or noisy. (claim from
the person on the
other end of the line)
A call-back call
cannot be made.
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Possible cause
Distance between the microphone and the talker is too long or the connection of micro-
phone is not proper.
●
Make the microphone closer to the talker. Or connect the microphone's connector
properly.
The window is open, or the air conditioner blows air to the microphone.
●
Close the window, change the air direction from the air conditioner, or change the
microphone position.
Some mobile phones do not send Bluetooth data even if incoming calls are indicated on
the screen of your mobile phone.
●
A call-back call cannot be made.
The calling party activates the caller ID blocking function.
●
A call-back call cannot be made.
An international call was received.
●
A call-back call may not be made internationally depending on a contract with the
mobile phone company. Check the contract.
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Possible solution
a