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RJ-11, will only carry the Telco Tip and Ring power. Not PoE.
The phone company sends this power directly to your house through a pair of dedicated wires that connect to your phone jack. When the phone is not in use, this is a constant DC signal (about 50-60 volts). When the phone rings, the signal is a 20 hertz AC signal (about 90 volts). When in use it is a modulated DC signal (between 6 and 12 volts).
Wait wait...i see what you are saying now.
YOur Power Adaptor might be bad. if you only get dial tone, but the phone will NOT power on.......then your power adaptor might not be workign, or gone bad.
Or the electrical outlet is not working.
Do you have it connected like the image below?
Hello, are you still there?