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Some Cellphone has built in Echo cancellation function and causes interference with our echo cancellation.
Press 80# from your home phone key pad while off hook(should hear an acknowledge tone) then reboot Cell2Jack (power off/on). Also, Some cellphone only supports Bluetooth earphone but not fully support Bluetooth MIC.
You need lower your cell phone Bluetooth audio volume below 25% after the call connected. You only require to setup once. Also, Bluetooth audio volume setting won't affect your cellphone normal audio volume. Note: click volume bar to open audio volume setting. |
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