Panasonic KX-TGM420 User manual

Operating Instructions
Amplified Cordless Telephone with Digital
Answering Machine
Model No. KX-TGM420
KX-TGM450
Before initial use, see “Getting Started” on
page 27.
Thank you for purchasing a Panasonic product.
Please read these operating instructions before using
the unit and save them for future reference.
For assistance, visit our Web site:
http://shop.panasonic.com/support for customers in
the U.S.A.
Please register your product:
http://shop.panasonic.com/support

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Table of Contents
Introduction .......................................................6
Model composition .............................................. 6
Accessory information ......................................... 6
Graphical symbols for use on equipment and their
descriptions ......................................................12
Important Information .....................................15
For your safety..................................................15
Important safety instructions...............................21
For best performance .........................................22
Other information ..............................................25
Specifications....................................................26
Getting Started .................................................27
Setting up ........................................................27
Connections......................................................27
Controls ...........................................................39
Display icons.....................................................44
Language settings..............................................46
Date and time ...................................................47
Recording your greeting message.........................48

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Other settings ...................................................49
Accessibility......................................................50
Accessibility......................................................50
Tone control......................................................50
Volume booster .................................................53
Speech booster (making your voice louder) ...........57
Talking keypad and phonebook............................58
Key tones .........................................................60
Message indicator ..............................................60
Slow talk ..........................................................62
Using assistive listening devices...........................64
Making/Answer Calls........................................67
Making calls......................................................67
Answering calls..................................................69
Useful features during a call ................................72
Intercom ..........................................................80
Call block ..........................................................83
Call Block .........................................................83
Storing unwanted callers.....................................84
Phonebook........................................................90
Phonebook........................................................90

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Memory dial......................................................98
Programming..................................................102
Menu list ........................................................102
Alarm.............................................................121
Silent mode ....................................................124
Other programming .........................................126
Registering a unit ............................................127
Caller ID Service.............................................129
Using Caller ID service .....................................129
Caller list........................................................132
Answering System ..........................................135
Answering system............................................135
Turning the answering system on/off..................136
Greeting message............................................137
Listening to messages ......................................139
Advanced new message alerting features ............144
Remote operation ............................................150
Answering system settings................................154
Useful Information..........................................157
Voicemail service.............................................157
Wall mounting.................................................162

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Error messages ...............................................168
Troubleshooting...............................................171
FCC and other information ................................188
Appendix.........................................................197
Customer services ...........................................197
Limited Warranty (ONLY FOR U.S.A.)..................198
Panasonic Products Limited Warranty..................198
Index..............................................................203
IMPORTANT!...................................................206
For your future reference..................................207

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Introduction
Model composition
Series Model
No. Base unit Handset
Part No. Part No. Quantity
KX-TGM420
series KX- TGM420 KX- TGM420 KX- TGMA44 1
KX-TGM450
series KX- TGM450 KX- TGM450 KX- TGMA45 1
Accessory information
Supplied accessories
No. Accessory item/Part number Quantity
1 AC adaptor*1, *2 1
2 Telephone line cord*2, *3 1
3 Wall mounting adaptor/PNKL1001Y3 1
4 Rechargeable batteries*4, *5 4

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No. Accessory item/Part number Quantity
5 Handset cover*6/PNYNTGMA44WR 1
6 Belt clip*7/PNKE2076Z1 1
*1 PNLV226X: KX-TGM420
PNLV236-0Y: KX-TGM450
*2 The AC adaptor and telephone line cord come
connected to the base unit at the time of
shipment.
*3 PQJA10075Y (Black cord), PQJA10075Z
(Transparent cord)
*4 The supplied rechargeable batteries in the handset
and base unit are installed with yellow insulation
sheets inserted between battery ends and the
terminals at the time of shipment. Remove the
yellow insulation sheets before use.
*5 See page 9 for replacement battery information.
*6 The handset cover comes attached to the handset
at the time of shipment.
*7 The belt clip comes attached to the handset at the
time of shipment.

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1 2
3 4
5 6

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Additional/replacement accessories
Please contact your nearest Panasonic dealer for sales
information (page 197).
Accessory
item Model number/Specifications
Rechargeable
batteries HHR-4DPA*1
•To order, please visit
http://shop.panasonic.com/support
Battery type:
– Nickel metal hydride (Ni-MH)
– 2 x AAA (R03) size for each
handset
Headset KX-TCA93, KX-TCA430
Range extender KX-TGA405*2
Key detector KX-TGA20*3
*1 Replacement batteries may have a different
capacity from that of the supplied batteries.

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*2 By installing this unit, you can extend the range of
your phone system to include areas where
reception was previously not available. This
product can be purchased online. Please visit our
Web site: http://shop.panasonic.com/support
*3 By registering the key detector (4 max.) to a
Panasonic Digital Cordless Phone and attaching it
to an easy-to-lose item in advance, you can locate
and find the mislaid item to which the key detector
is attached. Please visit our Web site:
http://www.panasonic.com/tga20
Other information
•Design and specifications are subject to change
without notice.
•The illustrations in these instructions may vary
slightly from the actual product.

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Expanding your phone system
Handset (optional): KX-TGMA44*1/KX-
TGMA45*2
You can expand your phone
system by registering optional
handsets (6 max.) to a single
base unit.
•Optional handsets may be a
different color from that of the
supplied handsets.
*1 Maximum receiver volume is 40 dB (when the
booster is on).
*2 Maximum receiver volume is 50 dB (when the
booster is on).

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Graphical symbols for use on equipment and
their descriptions
Symbol Explanation
Alternating current (A.C.)
Direct current (D.C.)
Protective earth
Protective bonding earth

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Symbol Explanation
Functional earth
For indoor use only
Class II equipment
(equipment in which protection
against electric shock relies on
Double Insulation or Reinforced
Insulation)
“ON” (power)

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Symbol Explanation
“OFF” (power)
Stand-by (power)
“ON”/“OFF” (power; push-push)
Caution, risk of electric shock

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Important Information
For your safety
To prevent severe injury and loss of life/property, read
this section carefully before using the product to
ensure proper and safe operation of your product.
WARNING
Power connection
•Use only the power source marked on the product.
•Do not overload power outlets and extension cords.
This can result in the risk of fire or electric shock.
•Completely insert the AC adaptor/power plug into
the power outlet. Failure to do so may cause electric
shock and/or excessive heat resulting in a fire.
•Regularly remove any dust, etc. from the AC
adaptor/power plug by pulling it from the power
outlet, then wiping with a dry cloth. Accumulated
dust may cause an insulation defect from moisture,
etc. resulting in a fire.
•Unplug the product from power outlets if it emits
smoke, an abnormal smell, or makes an unusual

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noise. These conditions can cause fire or electric
shock. Confirm that smoke has stopped emitting and
contact us at http://shop.panasonic.com/support
•Unplug from power outlets and never touch the
inside of the product if its casing has been broken
open.
•Never touch the plug with wet hands. Danger of
electric shock exists.
Installation
•To prevent the risk of fire or electrical shock, do not
expose the product to rain or any type of moisture.
•Do not place or use this product near automatically
controlled devices such as automatic doors and fire
alarms. Radio waves emitted from this product may
cause such devices to malfunction resulting in an
accident.
•Do not allow the AC adaptor or telephone line cord
to be excessively pulled, bent or placed under heavy
objects.

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Operating safeguards
•Unplug the product from power outlets before
cleaning. Do not use liquid or aerosol cleaners.
•Do not disassemble the product.
•Do not spill liquids (detergents, cleansers, etc.) onto
the telephone line cord plug, or allow it to become
wet at all. This may cause a fire. If the telephone
line cord plug becomes wet, immediately pull it from
the telephone wall jack, and do not use.
•To prevent hearing damage, make sure anyone who
uses this product is aware that the product can
produce very loud sounds, and make sure children
use this product only under adult supervision.
•To prevent hearing damage, we recommend that
you set this product to the lowest volume setting at
which you can hear adequately. Note that when the
BOOST indicator is lit in red, the volume booster
feature is enabled and the product may emit sounds
at very high volume.
•Avoid prolonged exposure to loud sounds produced
by this product. Be aware that the louder a sound is,
the less time is needed to cause hearing damage. In
the event that you experience hearing discomfort,
consult a medical professional.

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Medical
•Consult the manufacturer of any personal medical
devices, such as pacemakers or hearing aids, to
determine if they are adequately shielded from
external RF (radio frequency) energy. (The product
operates in the frequency range of 1.92 GHz to 1.93
GHz, and the RF transmission power is 115 mW
(max.).)
•Do not use the product in health care facilities if any
regulations posted in the area instruct you not to do
so. Hospitals or health care facilities may be using
equipment that could be sensitive to external RF
energy.
CAUTION
Installation and location
•Never install telephone wiring during an electrical
storm.
•Never install telephone line jacks in wet locations
unless the jack is specifically designed for wet
locations.
•Never touch uninsulated telephone wires or
terminals unless the telephone line has been

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disconnected at the network interface.
•Use caution when installing or modifying telephone
lines.
•The AC adaptor is used as the main disconnect
device. Ensure that the AC outlet is installed near
the product and is easily accessible.
•This product is unable to make calls when:
–the handset batteries need recharging or have
failed.
–there is a power failure.
Ni-MH rechargeable batteries (supplied)
•We recommend using the batteries noted on page 5.
USE ONLY rechargeable Ni-MH batteries AAA
(R03) size.
•Do not mix old and new batteries.
•Do not open or mutilate the batteries. Released
electrolyte from the batteries is corrosive and may
cause burns or injury to the eyes or skin. The
electrolyte is toxic and may be harmful if swallowed.
•Exercise care when handling the batteries. Do not
allow conductive materials such as rings, bracelets,

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or keys to touch the batteries, otherwise a short
circuit may cause the batteries and/ or the
conductive material to overheat and cause burns.
•Charge the batteries provided with or identified for
use with this product only, in accordance with the
instructions and limitations specified in this manual.
•Only use a compatible base unit (or charger) to
charge the batteries. Do not tamper with the base
unit (or charger). Failure to follow these instructions
may cause the batteries to swell or explode.
Attention:
A nickel metal hydride battery that is
recyclable powers the product you have
purchased.
Please call 1-800-8-BATTERY
(1-800-822-8837) for information on
how to recycle this battery.