My Panasonic Kx-tg6645 Telephones Do Not Have A Dial Tone. Help!!!!!!!!!!!!!!!!!

• Make sure that the base unit has power.
• "Line in use" is displayed if the line is currently active on a call. Confirm no one else is on the line.
• If you have multiple handsets, it is possible that one of them is turned on so check the rest of the handset and turn it off.
• Check if all connections are secure and plugged properly from the wall and from the back of the base unit.
• Check if your other phone is getting a dial tone. If none of the handsets are in use, try to unplug the base unit from the power outlet for 5 seconds then replug and test the line by calling you line using your cell phone or a different phone line.
• If the problem seems to be happening with all of your phones, then you might be experiencing a possible line problem, you can try to plug the telephone into a completely different line like your neighbor's or friend's house.

I hope this is helpful to you!

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