I need to deregister all the handsets from the vtech i5867 base unit

Unfortunately, the old handsets may not be compatible with the new base. The DS6251-2 base only communicates with the DS6250 accessory handset. See the accessory list here: https://www.vtechphones.com/store/pd/4158/DS6251-2-2-Line-2-Handset-Cordless-Phone-with-Answering-System-Smart-Call-Blocker . If the old handsets have been deregistered from the previous base unit, place a handset in the cradle on the base. Wait to see if the handset is registered. Alternately, press and hold Page until you see Registering. Release the Page button. Then press Quiet/# (below 9) on the handset. Wait for the handset to be registered.

To deregister handsets from the DS6251 base, press and hold Page. You'll see Registering Please Wait followed by Deregister all devices? At this point, release the Page button. Then press and release Page or the soft key for Yes.

I hope this helps. These are shown in the manual for the accessory handset. The manual is on available on the accessory handset page: https://www.vtechphones.com/store/pd/4184/DS6250-2-Line-Accessory-Handset-for-DS6251-series-phones . The current link to the manual is https://cdn-web.vtp-media.com/products/DS/DS6250/DS6250_CIB_V2_20200623.pdf .

Cindy Wells

De-register the base station by holding the find handset button for 10 secs ... to reset/deregister a VTech Dect 6.0 handset without the old base

Here are the steps: Press menu, then press *883247# and then press the up arrow. Select deregister and then unplug and take the battery out for 10 seconds. Plug the phone back in and it's ready to be registered to another device.

Maybe this might help.

Called the manufactuer.... To do this enter on the handset you want to deregister:

*331734# and press (Menu Key# 1 - top uppermost left button that is unmarked).


This will put the handset back into the register mode.



Hope this helps,

James Pavicic Jr

Getting startedReplace a handsetIf you want to replace a handset or reassign the designated handset numberof a registered handset, you must deregister all the handsets and thenindividually register each handset.To make deregistration easier, read all of the instructions on this page beforeyou begin. To deregister all handsets:Press and hold FIND HANDSET on the telephone base for about 101.seconds (until the IN USE light on the telephone base turns on and starts toflash), then release FIND HANDSET.Press and release FIND HANDSET again. You must press FIND HANDSET2.while the IN USE light is still flashing. The IN USE light flashes forapproximately seven seconds.All system handsets show CONNECTING... The deregistration process3.takes about 10 seconds to complete. All handsets show NOT REGISTEREDwhen the deregistration completes.If deregistration fails, you might need to reset the telephone and try again.To reset:1.Pick up the registered handset and then press talk/flash.Press OFF/CLEAR and place the handset back in the telephone base.2.-OR-1.Unplug the power from the telephone base, then plug it back in.You cannot deregister a handset if any system handset is in use.

for the Vtech cordless phones model DS6322-4 models

In the handset press
*331734# and the menu button, yur handset will be deregistered.

Enjoy unlocking :-)

It sounds like you are trying to register the handset(s) to the base. Once the handset is charged, if you see 'Searching for Base' on the display,(The bold is for your question specifically but I thought you may like all of the information for getting a phone hooked up) ON the Base unit press MENU, scroll down to Display Base ID, press OK, and the Base ID code will display. If NEW appears in your handset display, press the soft key under it and enter the base ID code you found in the base display. If 'New' does not appear on your handset, press MENU and then scroll down to REGISTER. Press OK and then enter the base ID code. If the handset is already registered, please deregister all then register again. To deregister a handset which is registered to the base model 20-2431, Using the soft keys on the base, press the 'MENU', then press the down arrow once until 'SETUP BASE' is highlighted. Press 'OK'. Press the down arrow 6 times, until 'DEREGISTER ALL' is highlighted. Press 'SET' . If your handset is registered to the base model 20-2481, Using the soft keys on the base, press the 'MENU', then press the down arrow twice until 'SETUP BASE' is highlighted. Press 'OK'. Press the down arrow 7 times, until 'DEREGISTER ALL' is highlighted. Press 'SET'.


Benjamin

This worked for me after lots of digging....If you have already tryed reregistering your handsets and can only get two-or three to work try this and deregister them and re-register. If your base model number is vt2431: Take the handset out of the base, press **335782 on the dial pad of the base. (do not have the line active or anything , just put the (2) stars and 335782 in (no spaces) on the base unit. This will de-register all of the handsets at one time. Then just re-register the handsets...

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.