Uniden Ex18560 Won't Ring While On The Base.

1. Check the Ringer Volume: Make sure the ringer volume is turned up on both the handset and the base. It's possible that the volume might be set to a low level or muted.

2. Check the Ringer Settings: Ensure that the ringer is turned on and not set to silent mode on both the handset and the base.

3. Check the Base Connection: Make sure the handset is properly seated in the base. If the handset isn't making proper contact with the charging pins, it might not ring.

4. Test with Different Handset: If you have more than one handset, try placing a different handset on the base to see if the issue persists. This can help determine if the problem is specific to the handset or the base.

5. Reset the Handset: Sometimes, a simple reset can resolve issues. Try removing the handset from the base, removing the battery, waiting a few minutes, and then reassembling everything.

6. Check Call Block/Do Not Disturb: Check if the handset is set to "Do Not Disturb" or if any call blocking features are activated. These settings could prevent the phone from ringing.

7. Check the Base Connections: Ensure that the base unit is properly connected to the power source and the phone line. A loose connection might cause issues with ringing.

8. Factory Reset: As a last resort, you could try performing a factory reset on the handset. Keep in mind that this will erase any custom settings you've configured.

If none of these steps resolve the issue, you might want to consider contacting Uniden's customer support for further assistance or bringing the phone to a professional for inspection and repair.