CORDLESS PHONES FOR THE UXCC500 FAX ANSWERING MACHINE

1. To de-register the orphaned handsets from their old base:
When the orphaned handset says "Connecting..." or "Out of..."
enter *331734 [menu]
and it will soon beep and display "Not registered"

2. To register the new handset to your base:
press the "Handset Locator" button on the base and hold
it until the "in use" light comes on ( ~ 4 seconds ),
then release the button and set the new handset into
the base phone cradle. After ~ 30 seconds it will beep
and display "Handset #" (next in sequence).

3: Note: the base handles a maximum of 12 handsets.

If your system was fully populated ( ie, a handset is
already # 12 ) you will have to clear all the handsets
from the base and re-register them all in sequence.
( it is the only way to 'rescue' the places occupied
by the lost handsets ).

To clear the base of all registrations:

1. Press and hold the the "Handset Locator" button
until the "in use" light lights and then starts to blink
( ~ 10 seconds ), release the button --
then press it again briefly while the "in use" light
is still blinking.

2. The base will beep and all handsets that were registered
will display "Not Registered"

3. Follow the instructions above for each handset
in turn to re-register them:
press "Handset Locator" ~ 4sec ( in-use light on ),
set handset into the base cradle, etc.

The manual is available from: www.manualslib.com
but does not fully describe these procedures.

Good luck !

Your phone's owner manual can be downloaded from this location.
Hope you are able to sort your problems out soon.
Anyway, please, let me know if I can help you out any further.
Regards, Carlos

you bought it off ebay --your battery probable at fault but also depending on what you have -running or downloaded apps-photos -music will drain battery in stand by mode even if you replace battery if your usage is high [dont have to be on phone ] from what you have on it battery drain can be the same

Short answer:
No. This model of phone can only support 4 handsets. If you need more than that, you will need to have a second base unit.

Detailed answer:
One of my handsets went bad, and I just bought complete DCT748-4 package from a seller on eBay for a very good price. This set was used, but in very good condition. I didn't need the whole set - just one handset - but like I said, it was a good price. Anyway, I began by telling my old base unit to de-register handset #2 (the failed unit). However, I then found that I could not register the "new" handset with my old base unit because it was already registered to the "new" base unit. So, I first had to apply power to the "new" base unit and de-register the handsets. Then, I placed one of the "new" handsets onto my old base unit, and it said "Handset Registering ..." and registered just fine. Just for the fun of it, I placed one of the other spare handsets into my old base unit. It said "Hanset Registering ..." but then it beeped and said "Registration Failed." This is because I already had 4 handsets registered to my base, and the base can not handle a fifth handset.

I would say the LCD is dead. They seem prone to that because we have had to replace two handsets with exactly the same problem. The one lost the top row of the screen, the second is completely screendead. Though all is not lost. Any GAP compatible cordless handset will work with that base, so you can replace them and not have to buy an entire system :) Ebay is a good source for handsets only.

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.

I can vouch for the second solution. It worked perfectly on my 2461 with two extensions. Even the vTech website was not able to provide a solution.

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.

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 Amazon.com) 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).

Check that you have the larger power adaptor connected to the base unit.