How to Fix 'Out of Range' Message on Uniden Handset?

It sounds like your Uniden `TRU9488` handset is having trouble connecting to the base station, which can be frustrating. First, make sure the battery in the cordless phone is fully charged. If it is, try bringing the handset closer to the base station to see if that helps. If you still see the "out of range" message, it's time to reset the base station. Unplug the power adapter from the wall outlet, wait for about 30 seconds, and then plug it back in. This will allow the base station to reinitialize. If the base station has power—since you mentioned you can make calls from the main phone—then the issue likely lies with the handset itself. To address this, you can deregister the handset from the base station. To do this, press and hold the OFF (red button) and the # button on the handset for about five seconds. When prompted, select "base unavailable" and confirm your choice. This will remove the base information from the handset. Next, you’ll want to re-register the handset. Start by pressing the MENU soft key on the handset, then navigate to "REGISTER HANDSET" and press OK. After that, press and hold the # button until you hear a beep. The display should show "HANDSET.REGISTERING," and once it’s done, you’ll see "REGISTRATION.COMPLETE." If these steps don’t work, try placing the handset directly on the base station to see if it registers automatically. You should hear a notification tone if it connects. If you still don’t have a dial tone and the handset remains unresponsive, it’s possible that the handset is defective and may need to be replaced. If that’s the case, consider looking for a compatible replacement or a new phone system that meets your needs.