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What can I do if I have no dial tone?
Make sure you have no phones off hook.
Test other phones in your house. If they all have a dial tone, then you have a bad outlet or phone.
Sometimes Fax machines or PC’s plugged into the phone wires can cause a short. Try unplugging all fax machines and computers from the phone lines.
Old phones can cause shorts in the lines. Try unhooking all phones but the newest one to see if dial tone is restored.
Household pets or other animals may have chewed wires to some of the phones causing them to short out. Inspect any visible wires to see if they are damaged.
If you have a cordless phone make sure the batteries are not dead.