Question about Vtech LS6125-2 1.9 GHz Twin 1-Line Cordless Phone

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  • JamesBaxter Dec 27, 2008

    I am having the same issue the with the DS3111-2 says you can have up to four but i bought four and can not get the other two registerd. Vtech is also no help.



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The 6125-2 only supports 2 handsets.

Posted on Aug 09, 2009


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Bought a used vtech 5.8 phone, charged the battery and now see message "not registered. I can not make calls... how do I register it?

I believe it is telling you it is not registered with the Base Unit. You did get the Base Unit with it didn't you, otherwise you have a paperweight.

If you do have a set then this is the answer

Tip 1 of 1
Step 1: Place the handset in the base or charger. If PRESS FIND HS 4 SEC ON BASE does not appear on the screen after a few seconds, lift up handset and recradle it in the base or charger.

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

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

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My vtech phone say not registered and see manual #cs6114

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4 Answers

My vtech phone says not registered and not sure why and how come? can this be fixed or do i have to buy new one? model # CS6114 S# LR605935851

Here is a direct link to the User's Manual for your phone:

To view the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual.

You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer.

See page 26 of the manual for detailed instructions on HOW TO REGISTER THE HANDSET TO THE BASE.

Basically, the manual reads as follows:

Not registered appears on the handset and it does not work at all.

The handset may be deregistered from the telephone base.
Follow the steps below to register the handset to the telephone base.

1. Remove the handset from the telephone base.

2. Press and hold FIND HANDSET button on the telephone base for about four seconds until the red IN USE light turns on.

3. Then press # (pound key) on the handset.

It displays Registering... and it takes about 60 seconds to complete the registration.
The handset displays Registered for a few seconds and you hear a confirmation tone when the registration process completes.

I hope that was helpful to you, good luck and take care.


Aug 13, 2011 | Vtech 2653 Cordless Phone (VTECHEV2653)

1 Answer

How do I deregister my handsets on my VTech 2656

To be able to register your replacement handset, you must de-register all the handsets from the VT2656 base unit.

Follow the steps below to de-register your handset(s) from the VT2656 base:

1. Take out the handset that sits on the base.
2. Unplug power from the base.
3. Hold down PAGE while reconnecting power. When the In Use light blinks, release the PAGE key.
4. Hold down PAGE key for 5 seconds. When the In Use light begins to flash, release the PAGE key.
5. The handset charging light will blink 5 times. Within 5 seconds from when it stops blinking, press PAGE once.

You must register the handset(s) by following the steps below:

1. After charging the handset, remove it from the cradle, the LCD display will read "SEARCHING FOR BASE".
2. Press "NEW" and then enter the 15-digit Base ID code, located on the underside of the VT2656 base unit.
3. Press "OK". The handset will display "PLEASE WAIT!!".
4. Wait approximately 15 seconds. The handset will display "FOUND BASE". If the handset displays "BASE BUSY TRY LATER", this indicates that the system is in use. Wait until the base unit is in the idle (on hook) mode and repeat steps 2-4.

Apr 30, 2010 | Vtech Digital Cordless Telephone VT-2568

1 Answer

Can put in base id

Did you try this (from the i5801 manual) -

To register a handset to the base, follow these steps:

Step 1: If ENTER BASE ID is displayed on the handset, proceed to the next step; if not, press MENU on the handset, then press ▼ until REGISTER is highlighted; now press OK.

Step 2: Locate the 15-digit Base ID number by pressing, at the base: MENU, then press until DISPLAY BASE-ID is highlighted, then press OK.

Step 3: Carefully enter this number using the handset dialpad. If you make a mistake, press to backspace. When finished, press OK.

In a few moments, the handset will be assigned a number (1-6). This will be the lowest available number in the sequence not previously assigned to another system handset.

Step 4: Repeat the procedure for any other unregistered system handsets.

Reply back if you have success. The Base ID is not from the bottom of the base unit, but is something you get by following Step 2 above.

Feb 04, 2009 | Vtech i5807 (735078006394) Cordless...

2 Answers

VTech 5.8 mhz won't work

I found a solution that fixed this problem (at least for me). On the vtech site they said to unplug the base unit for at least 5 minutes. Previously, I had only unplugged the base unit for a few seconds. This time, I left it unplugged for about 10 minutes or so and when I plugged it back in, everything was working fine. Apparently there is some sort of capacitor that must discharge long enough to completely remove power from the circuitry.

Good luck and I hope this works for you!

Jan 18, 2008 | Vtech 9009111 Cordless Phone

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