I just purchased a optional accessory handset model kx-tga430b to go with base unit kxtg4321b. instructions say to hold handset on locator for 4 seconds then press ok, unit will register then signal. unit says it is registering but does not keeps saying try again - error - registering etc. unit remains dead and useless. base unit works fine.

The manual for the KX-TGA430B is available on the product support page: http://shop.panasonic.com/support-only/KX-TGA430B.html . The direct link to this handsey manual in English is ftp://ftp.panasonic.com/accessory/phone_fax/kxtga430b/kxtga430b_om.pdf . However, I think you need the manual for the base unit, in addition to the information from your telephone provider. For example, this handset works with the KX-TG4321B. The manual for that is here: http://service.us.panasonic.com/OPERMANPDF/KXTG4321.PDF . The information on Voice Mail is on pages 36-37 of the manual.

I hope this helps.

Cindy Wells

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

I had this problem, and I fixed it by re-registering the phone to the base. Here are the directions for how to do that from the manual:


----->

Registering a handset to the
base unit
The supplied handset and base unit are
pre-registered. If for some reason the
handset is not registered to the base
unit, re-register the handset.
1 Handset:
{MENU}
2 {V}/{^}: "Initial setting"
{OK}
3 {V}/{^}: "Registration"
{OK}
4 {V}/{^}: "HS registration"
{OK}
5 Base unit:
- KX-TG4011 series:
Press and hold {LOCATOR} for
about 5 seconds. (No registration
tone)
- KX-TG4021/KX-TG4071 series:
Press and hold {LOCATOR} for

about 5 seconds until the
registration tone sounds.
If all registered handsets start
ringing, press the same button to
stop. Then repeat this step.
The next step must be completed
within 90 seconds.
6 Handset:
Press {OK}, then wait until a long
beep sounds.
Note:
While registering, "Base in
registering mode" is displayed on
all registered handsets.
When you purchase an additional
handset, refer to the additional
handset's installation manual for
registration.
<-----

See http://service.us.panasonic.com/OPERMANPDF/KXTG4011-MUL.PDF (page 22)

Registering a unit Operating additional
handsets
Additional handsets
Up to 6 handsets can be registered to
the base unit.
Important:
L See page 6 for information on the
available model.
Registering a handset to a
base unit
The supplied handset and base unit are
pre-registered. If for some reason the
handset is not registered to the base
unit, register the handset.
1
Handset:
{MENU} i {#}{1}{3}{0}
2
Base unit:
Press and hold {LOCATOR} for 4
seconds until the registration tone
sounds.
L If all registered handsets start
ringing, press the same button to
stop. Then repeat this step.
L The next step should be
completed within 90 seconds.
3
Handset:
Press {OK}, then wait until a long
beep sounds.
4
{OFF}
Note:
L While registering, "Base
registering" is displayed on all
registered handsets.
L When you purchase an additional
handset, refer to the additional
handset's installation manual for
registration.

The handset may have unregistered from the phone. The instructions to reregister it are in the manual, but I'll list them here for you.

1. On the handset, press MENU 001
2. On the base unit
For models KX-TG6021/KX-TG6022/KX-TG6023
Press and hold LOCATOR until the IN USE indicator flashes.
For models KX-TG6051/KX-TG6052/KX-TG6053/KX-TG6054
Press and hold LOCATOR/INTERCOM until the IN USE indicator
flashes.
After the IN USE indicator starts flashing, the rest of the procedure
must be completed within 1minute.
3. Press OK on the handset, then wait until a beep sounds.
4. Press OFF on the handset.

Hi! This may cure your problem!
Re-registering the handset
If “No link to base. Move closer
to base, try again.” is displayed
even when the handset is near the base
unit, you may need to re-register the
handset to the base unit.
Important:
LMake sure the base unit is not being
used.
LHave the handset and base unit near
each other when re-registering the
handset.
LKX-TG5422 and KX-TG5423 only:
Confirm the extension number of the
handset which has lost its link to the
base by placing the handset on the base
unit or charger.
If you accidentally assign another
handset’s extension number to it, the
other extension will stop functioning.
1 Handset:
Press {MENU}.
2 Scroll to “Initial setting” by
pressing {V} or {^}, then press {>}.
3 Scroll to “Registration” by pressing
{V} or {^}, then press {>}.
4 KX-TG5421 base unit:
Press and hold {HANDSET
LOCATOR} until the CHARGE
indicator flashes.
KX-TG5422 base unit:
Press and hold the handset locator
button that corresponds to the handset
you want to re-register ({HANDSET
LOCATOR1} or {HANDSET
LOCATOR2}) until the CHARGE
indicator flashes.

Below is a link that will take you to the instruction manual for your phone.

http://www.phone-manuals.com/panasonic/KX-TG5422M.shtml

Hope this helps! Hal

The additional handsets must be registered to the base unit. Here are the instructions from the manual:
HANDSET
1. [menu}
2. "handset settings" - OK
3. "Registration" - OK
4 "HS registration" - OK
BASE UNIT
Press and hold [LOCATOR] until the registration tone sounds.
-if all registered handsets start ringing, press {LOCATOR] to stop, then repeat this step.
-after the base unit beeps, the rest of the procedure must be completed within 1 minute and 30 seconds.
HANDSET
Press [OK], then wait until a beep sounds and Y stops flashing.

This works on MY panasonic; May work on yours too!

Registering a handset
The included handset and base unit are
preregistered. If for some reason the
handset is not registered to the base
unit, register the handset.
1 Handset:
{MENU} i {0}{0}{1}
2 Base unit:
Press and hold {LOCATOR/
INTERCOM} until the IN USE
indicator flashes.
LAfter the IN USE indicator starts
flashing, the rest of the procedure
must be completed within 1
minute.
3 Handset:
Press {OK}, then wait until a beep
sounds.
4 {OFF}
Registering an additional handset
See page 5 for information on the
available model.
Start from step 2.

If this error message displays on your handset, please follow the instructions below to deregister your old handset before registering a new handset.



1) On the base unit:
Press: FUNCTION or PROGRAM
Button name varies by phone model.

2) Press: MUTE

3) Enter the numbers 3, 3, 5, #

4) Enter the handset number (1 to 8)

I have a Panasonic KX-TG6700 base unit and KX-TGA670B handsets. We had a similar problem where we were no longer able to deregister the handset using the handset itself. We wanted to be able to use that slot that the broken phone was still occupyng. The solution that we found in the manual online was to hold down the intercom button for 3 seconds until the "in use" light turned on. Then press and hold the number of the extension you want to deregister until it beeps. At this point the base unit has freed that extension.