For the purpose for debugging your "NO Dial Tone" issue, please UNPLUG you cellphone charging cable from Cell2jack's "5V out" port first:

*  If you hear "..warning, your cellphone is not connected..."
     and the RED LED is OFF, please click here to start setup.

*  If you hear "..warning, your cellphone is not connected.."
     and the RED LED is SOLID ON, do a Factory Reset. Then re-setup Bluetooth connection to your cellphone

*  If you hear "...pairing...."  for few minutes and not connected, 
    please click here to see detailed pairing procedure.
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* If your "No Dial Tone" issue ONLY HAPPENS when Cellphone
     charging cable PLUG IN,  please press 60# from your home phone.

Note: 
After the call (cellphone hangup), the home phone will take 30 sec to couple mins to get "Dial Tone" back (it depends on your mobile network). Please hangup and wait.