How do I fix a landline that shows No Line and has no dial tone?
Answer
Power-cycle the modem or phone adapter, test with one phone on a direct jack, and check for loose phone wiring. If the line stays dead, report no dial tone through the phone provider’s official repair flow.
Before you start: stop right away if…
- Do not work on outdoor provider network boxes if you are unsure what is customer-owned.
- Only use the provider’s official repair channels for line outages.
Follow these steps
Power-cycle the modem or phone box
Unplug power from the modem or phone adapter for a full 2 minutes, plug it back in, and wait 5 to 10 minutes for it to come fully online.
You should see: Voice lights return to normal and dial tone may restore.
Test one phone on one jack
Unplug all other phones, then connect a known-good phone directly to a wall jack with no splitters.
You should see: Dial tone appears on that jack, or every jack remains dead.
Inspect accessible phone wiring
If you are comfortable doing so, check for a loose connector or disconnected pair at accessible junction points. Stop if you find damaged or unknown wiring.
You should see: An obvious loose connection is fixed, or wiring is left for a technician.
Check for a provider outage and file repair
Use the phone provider’s official outage page, then start a no-dial-tone repair request if the line is still dead after local testing.
You should see: The provider confirms an outage or schedules line repair.
Not sure this is the right page? Check here
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Extra tips
What to look for: No Line on the handset, voice lights on the modem or ONT, and whether every jack is dead or only one phone
Before you change anything: Unplug other phones before testing a single jack. Note whether internet remains online during the outage. Avoid opening sealed provider NIDs if you are uncomfortable with wiring. Use official provider outage and repair tools.