Vtech ia5870 dual handsets model problem:

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

General - Product Troubleshooting - VTech® Cordless Phones

www.vtechphones.com/support/.../35/178

VTech Communications Inc.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.

Product Registration - VTech® Cordless Phones

https://www.vtechphones.com/.../product-re...

VTech Communications Inc.Vtech DECT 6.0 cordless phones are among the most advanced and innovative homephones on the ... Product Registration. How do I register my product?

vtech cordless handset, how to register - YouTube

? 3:21
https://www.youtube.com/watch?v=dV9rZ_cYcks
Feb 22, 2015 - Uploaded by Brian Williams
i registered my handset but im not able to call and answer call from my ... you lose your phone you have to de register allphones and start over.

Out of range OR No power at base is shown in the handset ...

www.vtechphones.com/support/.../353

VTech Communications Inc.Out of range OR No power at base is shown in the handset display window. Why don't ... Tip 1 of 5. Confirm proper installation of the telephone base and charger power adapters, and handset battery. You should only use the VTech power adapters provided with your telephone. ... Next Tip This solved my problem. Tip 2 of 5.

FAQs - VTech Communications

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VTech Communications Inc.Have a question about VTech cordless phones? Visit our ... How do I find my model number ... My battery pack does not last very long between charges.

VTech CS6429-4 DECT 6.0 Expandable Cordless Phone ...

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.

The base and the handset are not communicating. To have them do so, you need to "register" the handset with the base. Since you neglected to specify the model of your VTech DECT 6.0 phone I can't tell you how to do that. I can suggest you enter the model number into the search box here to download a copy of the manual. The manual will give you instructions on how to register the handset.

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.

If the other three handsets work ok then you have a defective handset.

deregister headsets and then run register again

Place the handset in the charger and press find handset for 4 seconds.This will register the handset. do the same for other handsets.