Model 25860GE-3-A the handset 2 does not work. I have changed the battery and placed it on the base station to resynchronize.

Found out how to change the handset number [1] [2] [3] [4] etc on a Panasonic Cordless handset

Panasonic KXTG6644B

Changing Handset Number:
Deregister two Handsets [#1 & #2] 0r [#3 & #4] etc

On each handset hit -
[MENU] # 1 3 1
[ERASE] [YES]

(This leaves and open space on the base unit)

Re-Register 1st Handset [#1]
[MENU] # 1 3 0
Hold [LOCATION] on Base Unit 5 Seconds
Place the Handset you want #1 in Base Unit

Re-Register 2nd Handset [#2]
[MENU] # 1 3 0
Hold [LOCATION] on Base Unit 5 Seconds
Place the Handset you want #2 in Base Unit

Please be bit specific about the problem

Hi,

If you cannot register the handset then here are some possible causes and solutions for them.

Cause 1:The handset and the base station were not prepared for registration.
Solution: Unplug and then plug in the power adapter.

Cause2:The handset or the base station has not been entered into registration mode.
Solution: See User Manual for correct registration of base station and handset.

Cause3:The base station is registered full.
Solution: Press [Page Key] on the base station to page the registered handsets, then perform the deregistration operation. Finally, register the handset you want to use.

Here is few more of additional info. if you want:

Register the Handset to the Base Step 1:
Place the accessory handset in the base station of the system. For some simple systems this may be all you need to do to register the new handset. If so, the LCD screen will read "Registration Complete."
Step 2:
Press the "menu" button on the base station, scroll down to "register handset" and press "ok."
Step 3:
Press and hold either "#" or "OK" (depending on the brand) on your handset until your hear the indicator tone. At this time the LCD should confirm the handset is registered.
Reset Handsets with the Base Step 1:
Clear the registration information from the base if you want to register your handset to a new base.
Step 2:
Hold [] and [#] down on the base for a minimum of 5 seconds or until the "System Reset" menu appears.
Step 3:
Choose the "deregister" option from the menu and scroll down to the handset you wish to remove.
Step 4:
Press "OK" to de-register the correct handset. Press "yes" when you are asked if you are sure, and wait for the confirmation tone.
Reset Handsets without the Base Step 1:
Hold [] and [#] down on the phone for a minimum of 5 seconds until the "System Reset" menu appears.
Step 2:
Choose the "base unavailable" menu, select "yes" and press the "OK" button.


Goodluck,
Please don't forget to rate the solution.

Sounds like the antenna on the base station is not receiving, or the cordless handset is not transmitting -OR- the sets have never been registered to the base station (please look up registering to base station, if the set has never been registered)

Did the cordless set work before?

The base station or the handset may just have a hick up, I would un-plug the base station and leave it un-plugged... now get all the cordless set(s), and take out the batteries from the cordless set(s). Wait for about 15 seconds for all the power to drain out of the sets, then re-install the batteries.

Once all the cordless sets are back up and working, plug in the base station and wait for about 1 minute.
This forces the base station to re-establish and link between the base station and the cordless sets.

Good luck

change battery and it will be ok

If you're trying to get 5 handsets to work with one base, it won't work. The 4215 can only handle 4 handsets, the base handset plus 3.

When I had to replace the base of my 4 handset system, the base handset still worked. Therefore I had an extra handset which couldn't be used. So I decided to buy another base. Now I have 6 handsets which can be grouped 4,2 or 3,3.

You may need to "reset" the whole system. Do this by :
1 Unplug phone line, power to charger base, and remove the batteries.
2 Wait a couple of minutes.
3 Plug in batteries first, then phone line, and finally the power cord.

Then try to set the phones in the basecharger to register.

Similar issue - brand new phone - but incoming calls (skype or landline) would ring - and then nothing, and outgoing calls the handset would just reset.

The handset would just lose signal constantly (less than 2 meters from the base station).

The phone shipped with the latest software - but eventually I reinstalled it - no change, then de-registered the handset, powered everything down and re-registered the handset and that *seems* to have done it .....

So
1 - reflash / re-install latest software from philips website (even if the phone already has the same version)
2 - de-register handset (follow instructions)
3 - unplug base station and remove batteries from handset
4 - turn on base station, put batteries in handset
5 - re register handset (follow instructions in manual)

and that seems to do it.

I solved this problem with a RESET of the handset. Instructions from the Philips website: Please perform a reset of your device. You will not loose your recorded data (phonebook and personal settings are being kept). 1. Unplug the mains of the base station. 2. Remove one of the batteries of each handset. 3. Put the batteries back in and re-plug the mains of the base station.