Question about Uniden DCT758-4 Phone

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Phones (4) do not work

We experienced a power failure for a few minutes and our phones(4 of them ) do not work . We tried several resets but nothing helps.The phones(DCT758-4 Phone ) are less than a year old. It seems that the memory may be gone so I treated them like you ould a new installation and that didnt help either. Any suggestions ?? We still see an active screen on each phone but when you try to dial out it says out of range. Thanks.

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Re: Phones (4) do not work


Posted on Jun 03, 2008

Re: Phones (4) do not work

If you tried the registration process discribed in the book, it is possible that the base may have gotten zapped. Happened to me. Bought a new DCT 758 (cheap at with only one extra handset and used two of the old handsets with it. It will only support the handset in the base and 3 others, so you can't use all of the old ones (save them for extras).

Posted on Aug 03, 2007

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Our phones say LINE IN USE and we are not using them. Can't dial, can't connect - have unplugged but nothing. Help

What type of service do you have? Cable? Standard phone? If its cable, you can try resetting the modem. There should be a reset button near the powers switch. It will be recessed and about the size of large paperclip in circumference. Unplug the modem and press button for 10seconds or so. Replug it in and try phone after 3-4 minutes to allow reset to finish. DSL modems are the same way.

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I don't know yet if this is a resolution, but I'm going to try this tonight. Unplug all bases and remove all batteries from all handsets -- leave this overnight.

Here's the history of my problem. I rec'd this phone for my birthday. 3 weeks in, power went off in my building and answering machine part stopped working. I took it back to the store, and they gave me a new one. 4 weeks in, another power outage and I have the same problem. I called Panasonic, and they told me to unplug all bases and remove the batteries in the handsets for 'a few minutes' to reset the units. I waiting 10 minutes, and replaced all batteries and plugged in all the bases again. No luck, answering machine still did not work. I noticed, however that the phone did not reset as I still had all my phone numbers and caller id history.

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Okay, this solved it for me, so maybe it'll help others.

Basically, you just need to re-register the phones by placing each one on the base unit and leaving it there for at least five seconds after the charge/in use LED light stops flashing.

According to the manual, it's necessary to re-register each phone after a power failure or if the batteries get very low or die. If you're experiencing the "connecting..." problem, this will probably fix it!

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Vtech,5.8 3-phone w/digital recorder, model DS4122-3 None of the phones work they either say connecting or put back in the charger . these are only 2 months old?

To deregister ALL handsets:
Step 1: Press and hold FIND HANDSET on the main telephone base for 10 seconds.

Step 2: When the IN USE light starts to flash, release the FIND HANDSET button.

Step 3: Press and release FIND HANDSET again. The IN USE light will turn off and in a few seconds, all handsets will be de-registered.

Step 4: All handsets will show NOT REGISTERED.

To register a handset (register 1 handset at a time):
Step 1: Place the handset in the base unit or a charger that is connected to a power outlet. If PRESS FIND HNDST 4 SEC ON BASE does not appear on the screen after a few seconds, lift up handset and place in base or charger again.

Step 2: On the telephone base, press and hold FIND HANDSET for four seconds. Release FIND HANDSET once the IN USE light comes on.

After a while the handset will emit a series of tones, the newly registered handset will be assigned the lowest extension number not previously assigned to another system handset (1-4) when successfully registered. Repeat Steps 1 and 2 if the handset does not successfully register to the telephone base within two minutes.


Make sure the handsets are not receiving interference from other appliances, cell phones, etc.

IF deregistering does not work .. you will need to reset the entire system
Step 1: Disconnect the power to the telephone base.

Step 2: Disconnect the handset battery.

Step 3: Wait a few minutes and then reconnect the power to the telephone base.

Step 4: Reconnect the handset battery

Step 5: Wait about one minute for the handset to re-establish a link with the telephone base and then test the phone again.
You will need to set the time and date again after resetting the entire system.

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3 Answers


This method worked for me!! you guys should try this.

i've copy this review from amazon.

by Kane Doerfler

"After a brief power outage from a thunder storm, I also experienced an e3/lights blinking error. I unplugged the phone and plugged it back in several times to no avail. After doing this a couple of times unsuccessfully, I hit the "STOP" button on the base immediately after plugging it in (before it completed booting up to show the "e3 message")and it reset itself and now works fine (or as well as it did prior to the e3). Try it before tossing yours in the garbage"

thanks to Kane. I saved my phone~!!

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DCT758-4 Phone has failed

if they are less than a year old you should be able to bring them back under warranty and get them replaced. sounds like they might have got a power spike and it killed the base.

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