HAVE 2 LINE UNIDEN TRU8866 SERIES TWO LINE CORDLESS WITH BASE AND TWO OTHER NON BASE PHONE. NOW JUST GETTING THE SOUND OF AIR AND NO DIAL TONE ON LINE ONE. OTHER PHONES INDICATE L1 EXTENSION IN USE. HELP

If you have no dial tone the problem is most likely the base station has failed, nothing you can do will kill the dial tone (no button you pushed etc.) except a failed base station.

i would call uniden. :)

Check that you have power (eg. Led indicator is on) to your Base station.

If you have power to the base station and you still do not have a dial tone, plug in a non-cordless handset to the phone socket and see if you have a dial tone on yor non-cordless handset, then you have a faulty base station.

Hope it helps and good luck! let me know how you go!

Sorry you are having trouble.
Try this: Remove batteries from phones and re-insert.
Unplug base unit
Leave unplugged for about one minute.
Plug in base unit
Check for dial tone
If this does not work then get a non wireless phone and verify that you have a dial tone.

The one with out the dial tone put on the base with the phone line for 5 mins to register the hand set.

Make sure the phone and the phone base is turned on. Check the phone cables at the back of the phone base where you charge your cordless phone. It should be properly connected to the phone jack on the wall and at the back of the phone base. Try unplugging and replugging it back in. If that fails, try changing the phone cable. If still there's nothing, try to connect another phone on the phone line. If you get a dial tone, it means you have a problem with the wireless phone set, if not, contact your phone company.

there is no dial tone on my land line uniden 5.8 ghz.

you need to coldsolder the flash ic and cpu.

Hello, While I cannot locate that model in any Uniden database (you might want to find the literature), It sounds as if the handset may be communicating with its base, but you have lost the dial tone. Did any storms pass through recently? Here is what you do. Go to your base and push the locator button on your base station to call the handset via the page/locator function. If it rings the handset and you can answer it okay then you know your handset is working well and communicating with your base (the radio portion is working correctly). If it does not ring your handset then your Uniden is definately bad (radio wise). But, I am going to guess that it is okay but you still cannot communicate with the outside world and dial out to get dial tone or get an incoming call. Okay, so we have a dial tone problem. The next step is to see if dial tone is getting to your base. So you will need to take another good telephone, preferably a handy "line powered" telephone (no batteries or ac adapter needed) you can use in a power failure emergency. Take that good phone and plug it into the phone cord you unplug from your Uniden base. If you get dial tone, then your uniden does need repair. If it does not get dial tone, then you have a bad cord, jack or something in your phone wiring. If thats the case, change cords, look for corrosion, dirt or bent pins in the jack on the wall. My guess is that your Uniden has gone bad, likely from a slight surge on the phone line. If you do need your Uniden repaired you can contact Uniden they are at http://www.uniden.com/repair/service.cfm , however I don't believe they offer repair, but offer to sell you a replacement. Or you can go to www.cordlessrepair.com where you can get your Uniden Cordless unit repaired, not exchanged. Good Luck, CG