What does it mean when it says Check Tel Line?
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Usually this message means that the phone terminal is offline or needs to be reset. If you still see this message, you can reset the terminal using the steps on How to fix no dial tone on all phones issue.
Regarding this, why is my phone saying line in use?
It means one of your handsets are on, and holding your phone line hostage. This typically happens if someone put a cordless phone back in its cradle but forgot to press the "off" button. It could also happen if a pet accidentally knocked a phone on the floor and then stepped on it.
Thereof, why is my phone line not working?
Plug the phone that wasn't working into the same jack that the working phone was using. Use the same cord that the non-working phone used. Check for a dial tone. If the phone still doesn't have a dial tone, then the phone itself is likely broken, or the cord isn't working.
How to Connect a House Phone to a Cable Router
- Turn off your cable router and locate the "Input" panel on the rear or side of your router's body.
- Insert one end of the phone cable into the "PHONE" port on the router input. Connect the other end into the port on the phone's base. Return power to the router.