43-637.fm Page 1 Friday, August 13, 1999 10:45 AM
Cat. No. 43-637
OWNER’S MANUAL
Please read before using this equipment.
ET–148
20-Number Memory
Speakerphone
with Privacy
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43-637.fm Page 3 Friday, August 13, 1999 10:45 AM
READ THIS BEFORE
INSTALLATION
WARNING: To reduce the risk of
fire or shock hazard, do not ex-
pose this product to rain or mois-
ture.
Each device that you connect to the
phone line draws power from the phone
line. We refer to this power draw as the
device’s ringer equivalence number, or
REN. The REN is shown on the bottom
of the base.
CAUTION
RISK OF ELECTRIC SHOCK.
!
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVIC-
ING TO QUALIFIED PERSONNEL.
If you are using more than one phone or
other device on the line, add up all the
RENs. If the total is more than five, your
phones might not ring. In rural areas, a
total REN of three might impair ringer
operation. If ringer operation is impaired,
remove a device from the line.
This symbol is intended to alert you to
the presence of uninsulated danger-
ous voltage within the product’s enclo-
sure that might be of sufficient
magnitude to constitute a risk of elec-
tric shock. Do not open the product’s
case.
FCC STATEMENT
This symbol is intended to inform you
that important operating and mainte-
nance instructions are included in the
literature accompanying this product.
This telephone complies with Part 68 of
FCC Rules. You must, upon request,
provide the FCC Registration Number
and the REN to your phone company.
These numbers are shown on the bot-
tom of the base.
!
Note: You must not connect your phone
to any of the following:
• coin-operated systems
• party-line systems
• most electronic key phone systems
3
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43-637.fm Page 4 Friday, August 13, 1999 10:45 AM
CONTENTS
Preparation .............................................................................................................. 5
Installing Batteries .............................................................................................. 5
Testing/Replacing the Batteries ................................................................... 5
Selecting a Location ........................................................................................... 6
Placing the Phone on a Desk Top ................................................................ 6
Mounting the Phone on a Wall ..................................................................... 6
Connecting the Handset ..................................................................................... 7
Connecting an Optional AC Adapter .................................................................. 8
Setting the Dialing Mode .................................................................................... 9
Setting the Ringer Switch ................................................................................... 9
Operation ............................................................................................................... 10
Using the Speakerphone .................................................................................. 10
Switching Between the Handset and Speakerphone ................................. 10
Using Privacy .................................................................................................... 10
Using Redial ..................................................................................................... 10
Using Pause ..................................................................................................... 11
Using Flash ....................................................................................................... 11
Using Tone Services on a Pulse Line ............................................................... 11
Memory Dialing ................................................................................................. 12
Storing a Number in Memory ..................................................................... 12
Dialing a Memory Number ......................................................................... 13
Chain-Dialing Memory Numbers ................................................................ 13
Testing Stored Emergency Numbers ......................................................... 13
Troubleshooting .................................................................................................... 14
Care and Maintenance .......................................................................................... 15
The FCC Wants You to Know ........................................................................... 15
Lightning ........................................................................................................... 16
4
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43-637.fm Page 5 Friday, August 13, 1999 10:45 AM
PREPARATION
2. Put the batteries into the compart-
ment as indicated by the polarity
symbols (+ and –) marked inside.
INSTALLING BATTERIES
Your telephone uses two AAA batteries
(not supplied) for power to retain the
numbers you store in memory. For the
best performance and longest life, we
recommend alkaline batteries, such as
Cat. No. 23-555.
Cautions:
• Always use fresh batteries of the
required size and recommended
type.
3. Close the cover and tighten the
screw.
• Do not mix old and new batteries,
different types of batteries (stan-
dard, alkaline, or rechargeable), or
rechargeable batteries of different
capacities.
4. Be sure the NORM/STORE BATT
TEST switch on the back of the
phone is set to NORM (see “Testing/
Replacing the Batteries”).
1. Use a Phillips screwdriver to loosen
the screw in the battery compart-
ment cover on the bottom of the
telephone, then lift open the cover.
Testing/Replacing the Batteries
To test the batteries’ strength at any
time, temporarily slide NORM/STORE
BATT TEST (on the back of the tele-
phone) to STORE BATT TEST.
If the BATT TEST indicator does not
light or is dim, replace the batteries.
5
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43-637.fm Page 6 Friday, August 13, 1999 10:45 AM
To prevent the loss of stored numbers
when the batteries are removed, replace
the batteries within 5 minutes.
Placing the Phone on a
Desk Top
Set NORM/STORE BATT TEST back to
NORM.
SELECTING A LOCATION
You can place the phone on a desk top
or table, or mount it on a telephone wall
plate or directly on the wall. Select a lo-
cation that is:
Plug one end of the supplied long modu-
lar cord into the TEL LINE jack on the
back of the phone. Then plug the other
end into a modular phone line jack.
• Near a telephone line jack
• Out of the way of normal activities
Mounting the Phone on a Wall
• Near an AC outlet (only if you use
an optional AC adapter; see “Con-
necting an Optional AC Adapter” on
Page 8)
You can mount your telephone on a wall
plate, or you can mount it directly on the
wall using two screws (not supplied) with
heads that fit into the keyhole slots on
the bottom of the telephone.
Notes:
• Your telephone connects directly to
a modular telephone line jack. If
your phone line jack is not a modu-
lar jack, you can update the wiring
yourself, using jacks and adapters
available at your local RadioShack
store. Or, you can let the phone
company update the wiring for you.
If you are mounting the phone di-
Note:
rectly on the wall, drill two holes 315/16
inches (100 mm) apart. Thread the two
screws into the wall, letting the heads
extend about 1/8 inch (3 mm).
1
/
8
• The USOC number of the jack to be
installed is RJ11C (RJ11W if you
want to mount it on a wall plate).
15
3 /
16
6
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43-637.fm Page 7 Friday, August 13, 1999 10:45 AM
1. Press in on the side of the bracket
nearest the DESK label and lift the
bracket. Rotate the bracket 180°
and insert it into the WALL slots,
then push it upward to secure it.
3. Lift out the handset guide, rotate it
180°, then snap it back into place so
it holds the handset.
Handset
Guide
The handset holder above the
Note:
2. Plug one end of the supplied short
modular cord into the TEL LINE jack
on the back of the phone and plug
the other end into a modular phone
line jack. Then align the base’s key-
hole slots with the wall plate studs
(or screws) and slide the base
downward to secure it.
handset cradle lets you place the
handset on the holder without dis-
connecting the call.
Handset
Holder
CONNECTING THE
HANDSET
Plug one end of the coiled cord into the
modular jack on the handset. Then con-
nect the other end to the jack on the side
of the telephone base.
7
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43-637.fm Page 8 Friday, August 13, 1999 10:45 AM
You might prefer a longer cord for the
handset. Your local RadioShack store
has a wide selection of telephone acces-
sories, including longer coiled handset
cords.
1. Plug the adapter’s barrel plug into
DC 6V
the
telephone.
jack on the back of the
CONNECTING AN
OPTIONAL AC ADAPTER
Your telephone operates from telephone
line power. In some areas, however, the
telephone line might not provide enough
power to operate all of your telephone’s
features. If the speakerphone’s volume
is too low, even with the volume control
set to its highest setting, or if the speak-
erphone does not work, connect an AC
adapter (RadioShack Cat. No. 273-
1454).
2. Route the adapter cable through the
strain relief slot on the bottom of the
telephone.
Strain Relief Slot
Cautions:
• The recommended adapter supplies
6 volts DC, delivers at least 150 mil-
liamps, and has a barrel plug which
DC 6V
properly fits the phone’s
jack.
Using an adapter that does not meet
these specifications might damage
the phone or the adapter.
3. Plug the other end of the adapter in-
to a standard AC outlet.
• To prevent damage to the adapter
and the telephone, always plug the
adapter into the telephone before
you plug it into the AC outlet. Always
unplug the AC adapter from the AC
outlet first, then unplug the barrel
plug from the phone.
8
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43-637.fm Page 9 Friday, August 13, 1999 10:45 AM
SETTING THE DIALING
MODE
SETTING THE RINGER
SWITCH
MODE
RINGER
on the back of the tele-
Set
on the back of the base for
Set
the type of service you have (tone or
pulse). If you are not sure which type
you have, do this test.
phone to select the desired ringer vol-
ume:
HI
— Normal ringer volume.
— Reduced ringer volume.
MODE
TONE
.
1. Set
to
LO
OFF
— The telephone does not ring
Note: With the phone’s ringer off, you
can still make calls using the ET-148.
You can also receive calls if you hear an-
other telephone on the same line ringing.
2. Lift the handset and listen for a dial
tone.
0
3. Press any number other than .
Note: If your phone system requires
9
that you dial an access code ( , for
example) before you dial an outside
number, do not press the access
code either.
4. If the dial tone stops, you have
MODE
touch-tone service. Leave
TONE
set
to
.
If the dial tone continues, you have
MODE PULSE
.
pulse service. Set
to
9
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43-637.fm Page 10 Friday, August 13, 1999 10:45 AM
OPERATION
Make and receive calls with this phone
as you would with any other phone. This
section describes some of the phone’s
special features.
If you decide to change from the speak-
erphone to the handset during redialing
or memory dialing, let the phone finish
dialing first. Then lift the handset and
press SPEAKER.
USING THE
SPEAKERPHONE
USING PRIVACY
To talk to someone else in the room with-
out the person on the other end of the
phone line hearing your conversation,
press PRIVACY during the call. The PRI-
VACY indicator lights.
To make or receive a call on the speak-
erphone, leave the handset in the cradle
and press SPEAKER.
Slide VOLUME on the right side of the
phone’s base to adjust the speaker-
phone’s volume.
Press PRIVACY again to resume your
phone conversation. The indicator light
turns off.
To disconnect a call, press SPEAKER.
USING REDIAL
PAUSE/REDIAL lets you quickly dial the
last number dialed. Lift the handset (or
press SPEAKER), then simply press
PAUSE/REDIAL.
Switching Between the
Handset and Speakerphone
To switch to the speakerphone while
you are using the handset, press
SPEAKER and return the handset to the
cradle.
When you press PAUSE/REDIAL, the
telephone redials in the mode (tone or
pulse) in which you originally dialed the
number.
To switch to the handset while you are
using the speakerphone, lift the handset
then press SPEAKER.
10
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43-637.fm Page 11 Friday, August 13, 1999 10:45 AM
FLASH
again to return to the first
Notes:
Press
call.
• The redial memory holds up to 32
digits in the pulse mode and 31
digits in the tone mode. This
means you can redial long-
distance as well as local numbers.
Note: If you do not have any special
FLASH
phone services, pressing
disconnect the current call.
might
• The redial memory also holds pause
entries (see “Using Pause”).
USING TONE SERVICES
ON A PULSE LINE
• The redial memory does not store a
flash entry or any digits you press
FLASH
after
(see “Using Flash”).
Some computer services, such as alter-
nate long-distance and bank-by-phone,
require tone signals. If you have pulse
service, you can still use these special
tone services by following these steps.
USING PAUSE
In some telephone systems, you must
MODE
PULSE
.
1. Be sure
is set to
9
dial an access code ( , for example) and
2. Dial the service’s main number.
wait for a second dial tone before you
can dial an outside number. You can
store the access code with the phone
number. However, you should also store
a pause after the access code to allow
the outside line time to connect.
3. When the special service answers,
MODE
TONE
. Any additional
set
to
numbers you dial are sent as tone
signals.
4. After you complete the call, hang up
SPEAKER
the handset (or press
MODE PULSE
.
)
To enter a 2-second pause, press
and return
to
PAUSE/REDIAL
at the desired location.
PAUSE/REDI-
For a longer pause, press
Note: You cannot change from the
tone mode to the pulse mode during
a call. To make this change, you
must hang up the handset (or press
AL
additional times.
USING FLASH
SPEAKER
MODE
PULSE
to .
) then set
FLASH
performs the electronic equiva-
lent of a switchhook operation for spe-
cial services, such as Call Waiting or
transferring a call to another line in an
office network.
For example, if you have call waiting,
FLASH
press
to answer an incoming call
without disconnecting the current call.
11
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43-637.fm Page 12 Friday, August 13, 1999 10:45 AM
NORM/STORE BATT TEST
2. Set
to
MEMORY DIALING
STORE BATT TEST
. The BATT TEST
indicator lights.
You can store up to 20 numbers in
memory (15 digits each in the tone
mode, 16 in the pulse mode), then dial a
stored number by pressing a memory
button.
Note: Entering a pause counts as one
digit in memory.
Storing a Number in Memory
3. Enter the number and any pause
entries.
Note: Leave the handset in its cradle
when storing a number.
4. Press the memory button for where
you want to store the number and
write the person’s or company’s
name on the supplied Memory Index
Card. (Use a pencil in case you
want to change the number later.).
Important:
• If you attempt to store a number
while the BATT TEST indicator is
not lit, all stored numbers are
deleted.
• If BATT TEST does not light or is
dim, replace the batteries. See
“Testing/Replacing the Batteries” on
Page 5.
• Do not attempt to store a telephone
number with no batteries or weak
batteries.
MODE
1. Be sure
is set for the type of
service you have.
Repeat Steps 3 and 4 for each num-
ber you want to store.
5. When you finish storing numbers,
NORM/STORE BATT TEST
return
to
NORM
.
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43-637.fm Page 13 Friday, August 13, 1999 10:45 AM
Notes:
Chain-Dialing Memory
Numbers
• If the telephone rings while you are
storing numbers, you can answer
the call by lifting the handset or
For quick recall of numbers for special
services (such as alternate long distance
or bank by phone), store each group of
numbers in its own memory location.
SPEAKER
pressing
. If you answer a
call before pressing the memory
button for the number you were stor-
ing, you must start again from Step
3 after the phone call.
Dial the service’s main number first.
Then, at the appropriate place in the call,
press the memory button where the addi-
tional information is stored.
• If you make a mistake while storing
a
BATT TEST NORM
to
STORE BATT TEST
the number. Or, lift the handset then
return it to the telephone base and
re-enter the number.
NORM/STORE
then reset it to
. Then re-enter
number, return
Note: We recommend you do not store
private or secure numbers, such as
PINs.
Testing Stored Emergency
Numbers
You cannot delete a stored number, but
you can store a new number in its place.
If you store an emergency service’s
number (police department, fire depart-
ment, ambulance) and you choose to
test the stored number, make the test
call during the late evening or early
morning hours to avoid peak demand pe-
riods. Also, remain on the line to explain
the reason for your call.
Dialing a Memory Number
To dial a number stored in memory, lift
SPEAKER
the handset or press
. When
you hear a dial tone, press the memory
button for the number you want to dial.
13
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43-637.fm Page 14 Friday, August 13, 1999 10:45 AM
TROUBLESHOOTING
We do not expect you to have any problems with your phone, but if you do, the follow-
ing suggestions might help.
Problem
Suggestion
The phone does not work or
works poorly.
Be sure MODE is set properly.
Ensure the phone line is properly connected.
If you are using an optional AC adapter, ensure
it is properly connected. See “Connecting an
Optional AC Adapter” on Page 8.
Memory does not hold pro-
grammed numbers.
Replace the batteries (see “Testing/Replacing
the Batteries” on Page 5).
The party on the phone can-
Check the PRIVACY indicator. If the light is on,
not hear you, but you can hear press PRIVACY so it is off.
them.
The telephone’s volume level
drops or it begins to make
strange sounds.
Check to see if other phones on the same line
have been picked up. This phone might not
operate when other phones are active on the
same line (especially in areas with low tele-
phone voltage). Hang up the other phones.
If you are using an optional AC adapter, ensure
it is properly connected. See “Connecting an
Optional AC Adapter” on Page 8.
If you still have problems, disconnect the phone. If other phones on the same line work
properly, the fault is in this phone or its installation. If you cannot find the problem, take
your phone to your local RadioShack store for assistance.
14
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43-637.fm Page 15 Friday, August 13, 1999 10:45 AM
CARE AND MAINTENANCE
Your RadioShack ET-148 20-Number Memory Speakerphone with Privacy is an ex-
ample of superior design and craftsmanship. The following suggestions will help you
care for your phone so you can enjoy it for years.
• Keep the phone dry. If it gets wet, wipe it dry immediately. Liquids might contain
minerals that corrode electronic circuits.
• Use and store the phone only in normal temperature environments. High temper-
ature extremes can shorten the life of electronic devices, and distort or melt plas-
tic parts.
• Handle the phone gently and carefully. Dropping it can damage circuit boards
and cases and can cause the phone to work improperly.
• Keep the phone away from dust and dirt, which can cause premature wear of
parts.
• Wipe the phone with a damp cloth occasionally to keep it looking new. Do not use
harsh chemicals, cleaning solvents, or strong detergents to clean your phone.
Modifying or tampering with the telephone’s internal components can cause a mal-
function and might invalidate your telephone’s warranty and void your FCC authoriza-
tion to operate it. If your telephone is not performing as it should, take it to your local
RadioShack store for assistance. If the trouble is harming the phone lines, the tele-
phone company might ask you to disconnect your phone until you have resolved the
problem.
THE FCC WANTS YOU TO KNOW
In the unlikely event that your phone causes problems on the phone line, the phone
company can temporarily discontinue your service. If this happens, the phone compa-
ny attempts to notify you in advance. If advance notice is not practical, the phone com-
pany notifies you as soon as possible and advises you of your right to file a complaint
with the FCC.
Also, the phone company can make changes to its lines, equipment, operations, or
procedures that could affect the operation of this telephone. The telephone company
notifies you of these changes in advance, so you can take the necessary steps to pre-
vent interruption of your telephone service.
15
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43-637.fm Page 16 Friday, August 13, 1999 10:45 AM
LIGHTNING
Your telephone has built-in protection circuits to reduce the risk of damage from surg-
es in telephone line and power line current. These protection circuits meet or exceed
the FCC requirements. However, lightning striking the telephone or power lines can
damage your telephone.
Lightning damage is not common. Nevertheless, if you live in an area that has fre-
quent electrical storms, we suggest that you unplug your telephone during storms to
reduce the possibility of damage.
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal
use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized Ra-
dioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WAR-
RANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WAR-
RANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR
RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY,
LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR
ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES
RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY IN-
DIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or con-
sequential damages, so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as
proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a)
correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the same
or similar design; or (c) refund the purchase price. All replaced parts and products, and products on which a refund
is made, become the property of RadioShack. New or reconditioned parts and products may be used in the perfor-
mance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original
warranty period. You will be charged for repair or replacement of the product made after the expiration of the war-
ranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, mis-
use, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alteration, light-
ning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack
Authorized Service Facility; (c) consumables such as fuses or batteries; (d) cosmetic damage; (e) transportation,
shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102
We Service What We Sell
3/97
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
811081170B
1A8
Printed in China
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