What should I do if my AT&T landline has no dial tone?
Answer
Unplug all phones and test one simple corded phone in the network interface jack if accessible, then reboot the AT&T modem/gateway that provides the voice line. If there is still no dial tone, report an outage or request an AT&T technician visit through official AT&T support.
Before you start: stop right away if…
- Do not open street pedestals or climb utility poles to inspect outside lines.
- Only use official AT&T support channels for repair appointments.
Follow these steps
Unplug every phone device
Disconnect all phones, fax machines, and cordless bases from wall jacks so a single shorted device is not taking down the line.
You should see: All extensions are disconnected for testing.
Test one corded phone
Plug one simple corded phone into a jack near the modem or the network interface test jack if you have access, then listen for dial tone.
You should see: Dial tone returns on the test phone, or there is still silence.
Restart the voice modem/gateway
If AT&T voice uses a modem, unplug it for 60 seconds, power it back on, wait for voice/broadband lights to stabilize, and retest dial tone.
You should see: Voice service returns, or the modem lights show a voice fault.
Open an AT&T repair request
Through the official AT&T app or support number, report no dial tone, mention that the line runs through the modem if applicable, and request repair or a technician if the outage is not already listed.
You should see: AT&T creates a repair ticket or confirms an area outage ETA.
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Extra tips
What to look for: Dial tone presence, modem voice lights, and whether every phone in the house is dead or only some.
Before you change anything: Have a basic corded phone for testing if possible. Label which jacks you disconnect. Use AT&T’s official app or support number for repair tickets. Do not climb poles or open pedestals.