Question about AT&T 5840 Cordless Phone

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Searching for base

I have some handsets I purchased on ebay which I'm trying to get to register to the base at my home. I can't seem to get these to unregister from the 'former' base they hold in memory. Does anyone know how to reset these, can you just take the battery out for a week or two and pray it loses the old Base ID? Thanks.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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horthette
  • 23 Answers

SOURCE: 2355 at&t phone

you will need to call att or manage your phone online at http://www.att.com/gen/landing-pages?pid=3308

Posted on Jul 11, 2007

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SOURCE: handsets won't hold charge and have no base subscription

smash it into little pieces! That's what I'm doing with mine.

Posted on May 31, 2008

  • 4 Answers

SOURCE: dect 1221

On you base between Clear and intercon push middle button, with erow push display base -ID

Posted on Feb 20, 2009

  • 2 Answers

SOURCE: My 2 year old base has power but no dial tone. It

This might sound silly, but have you tried plugging another phone into the wall jack to make sure it works?

Posted on Mar 10, 2009

  • 1 Answer

SOURCE: Cordless phones display searching for base.

Same problem: registering base ID on cordless get T23 PD error and subsequently, Searching for Base

Posted on Sep 29, 2009

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1 Answer

How to register the extra cordless handset of vtech 15250


Add and register a handset
Each newly purchased handset must be registered to the telephone base before use. When first purchased, each expansion handset shows NOT REGISTERED.
You may need to charge the phone first.
To register a handset:
    ·Place the unregistered handset in the telephone base or charger. Press Find for 4 seconds. If the headset screen doesn't light up after the 4 seconds. You will need to charge it some more.
    ·After making sure it is charged set the telephone on the main base again press and hold the Find button for 4 seconds ( until the red light IN USE comes on) Then release the find button. The headset will show PLEASE WAIT; this takes about 10 seconds to complete the registration. The hand set will show HEADSET REGISTERED and the headset number assigned, you will hear a beep when the registration is finished
    ·When the registration is complete, the newly registered handset is assigned the next available handset registration number. For instance, if you already have HANDSET 1 and HANDSET 2, the next registered handset is HANDSET 3.
    ·Makes sure no other headsets are in use at the time or the registration may fail.
    ·You cannot register a handset if any other system handset is in use. Only one handset can be registered at a time.

Aug 18, 2017 | Vtech Lands Phones

1 Answer

Philips cordless phone se 455


CANON IR2520 ERROR E000000

Nov 11, 2013 | Lands Phones

1 Answer

Handset won't work


I went through this exercise with a Siemens Gigaset 8800. The solution is to DE-register the handset first. Then register it with your base. This function can likely be accessed in the handset menu. The phone you purchased is apparently still registered to the previous user's base.

May 23, 2009 | Siemens Gigaset 4200 Cordless Expansion...

1 Answer

Tru 9496


SOLUTION:

1. First, remove the battery cover on your unregistered TCX905 and look under the battery to confirm that you indeed purchased a TCX905 because some Uniden handsets were packaged as 905's but were not.

2. Take the fully charged unregistered 905 to the base unit TRU9496.

3. On the TRU 9496 base unit press "Menu" then select "Registration" and press OK

4. You should get the message "press the # key on the remote handset".

5. Depress the "#" key on the unregistered 905 and it should register.

Aug 07, 2008 | Uniden TCX905 Cordless Accessory Handset...

1 Answer

Unregistered, registering a new base, faillure....


IF YOUR HANDSET WAS WORKING AND THEN STOPPED WITH "UNREGISTERED":
If lowercase unregistered is in main display and a reg. appears under the left soft key:
Press the left soft key below REG. and then press and HOLD the button on the top of the base station until the two indicator lights on top of the base station turn off. Wait until handset signals with beeps and registered. You are done

THIS IS FOR FRESH OUT OF THE BOX REGISTRATION OF UNREGISTERED HANDSET
Press REG Register shall be highlighted.
Scroll to Register. Press Select.
Enter the system PIN (Default: 0000). Use
CLEAR to correct typing errors.
Press ENTER to confirm.
• Your handset starts searching for the base.
Press and HOLD the round button on top of the base unit until the two
indications turn off.
• If registration is successful, the signal icon

Jun 22, 2008 | Philips VOIP8411B/37 IP Phone

2 Answers

Deregister lost or broken phones


Some tricks from a helpful Uniden rep:

holding down end+# keys at the same time on the phone for about 10 secs (you will hear a beep) will deregister the handset. If you have a dead handset and want to deregister it from the base, you have to reset the base. unplug the phoneline and power. hold down the "delete message" key, plug power back in. about 10 secs later, you will hear a long beep (theres a short beep upon powerup as well). At this point all handsets are deregistred and you will have to reregister them with the end+# trick. this way when #1 handset is dead, you can make a working one #1 and get the broken one fixed emotion-1.gif

BTW, this is a woot warranty, not uniden warranty. however the uniden rep gave me the number to the people who refurb (rox0rz!) these. I'll post an update when I finally get ahold of them (and the number if its actually helpful)

Jun 20, 2008 | Uniden TRU8885 Cordless Phone

1 Answer

Phillips dect2152


If you bought the base and handset together they should already be registered. If not then the instruction manual is downloadable here: MANUAL


The relevant section is on page 16 - here is a copy:

4 handsets can be registered to the base station. A handset
can only be associated with 1 base station.
�� To register another handset
First enter registration mode by unplugging and
plugging back in the power adapter to the
electricity supply.
Handsets registering / unregistering ( )
�� To unregister the handset you use
enter the RC code*
�� To unregister all the handsets (except the handset you are using)
enter the RC code*
Once the menu is selected, enter the RC* code written under the base and press
to confirm.
Warning : If you wish to associate a non-Philips handset to the DECT 211 or DECT 215 base
stations, make sure that these handsets are GAP compliant otherwise they will not operate properly.
*RC code
(Registration
Code) is
written under
the base.
Warning : Once unregistered, the handset is no longer operational.

Please rate my assistance this should be a fixya!

Mar 29, 2008 | Philips DECT 2151 Cordless Phone

6 Answers

Tru9466 base and tru9465-2 handset


Same manual as lethean provided on a similar post but Page 24 if the previously used Base is Unavailable and your phone shows "Deregistration" in the Menu.

Base Unavailable (Handset Only)
To clear the base registration data in the handset, please follow these steps:
Press and hold [] and [#] for more than 5 seconds. Select the BASE UNAVAILABLE submenu.
BASE UNAVAILABLE appears. Move the cursor to select YES, and then press the OK soft key.
ARE YOU SURE? appears. Move the cursor to select YES. Press the OK soft key.

Mar 10, 2008 | Uniden TCX905 Cordless Accessory Handset...

2 Answers

How to REregister handsets


You can unregister your phone without being in the cradle, but to re-register them, just put them back in the cradle.  After being unregistered, they will automatically re-register once they are put back in the cradle of the main base.  Try setting them back in the base cradle to re-register, and hopefully that will work for you.

Dec 01, 2007 | Uniden TRU9480 Cordless Telephone

7 Answers

Uniden handset TCX905 with base unit TRU8866-if compatible?


I just successfully registered 4 TCX905s with my TRU8865 base - it's documented in the TCX905 manual.

Be sure the handset you want to register is fully charged.

Remove the handset you want to register from its charger.

Now unplug the AC for the main base, hold down the 'find handset' key on the base and plug the AC in again, when it beeps, you can let go of that button.

Hold down the '#' on the handset you want to register, it will show 'Registering Handset...' and when it beeps, it's done - registered, you're good to go :)

Oct 11, 2007 | Uniden TCX905 Cordless Expansion Handset

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