43-687.fm Page 1 Friday, August 13, 1999 11:12 AM
Cat. No. 43-687
OWNER’S MANUAL
Please read before using this equipment.
ET-687
Two-Line 900MHz Digital Spread Spectrum
Cordless Telephone
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43-687.fm Page 3 Friday, August 13, 1999 11:12 AM
Redial — lets you quickly redial the last
number dialed.
Your telephone operates on standard ra-
dio frequencies as allocated by the FCC.
Even though the security access-protec-
tion code prevents unauthorized use of
your phone line, it is possible for other
radio units operating on similar frequen-
cies within a certain area to unintention-
ally intercept your conversations and/or
cause interference. This lack of privacy
can occur with any cordless phone.
Flash — sends an electronic switchhook
signal for use with special phone servic-
es, such as Call Waiting.
Tone/Pulse Dialing — lets you use ei-
ther type of service, and you can easily
switch from pulse to tone dialing for spe-
cial services such as bank-by-phone.
Hearing-Aid Compatibility — lets you
use your phone with hearing aids that
have a T (telephone) switch.
Warning: To reduce the risk of fire
or shock hazard, do not expose
this product to rain or moisture.
This telephone has been tested and
found to comply with all applicable stan-
dards.
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.
We recommend you record your phone’s
serial number here. The number is on
the bottom of the base.
Serial Number: __________________
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.
Important Note: Cordless phones such
as your ET-687 require AC power to op-
erate. When the AC power is off, you
cannot dial out or receive incoming calls
using this phone. To be safe, you should
also have a phone that does not need AC
power to operate (not a cordless phone)
so you can still make and receive calls if
there is an AC power failure.
This symbol is intended to inform you
that important operating and mainte-
nance instructions are included in the
literature accompanying this product.
!
3
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43-687.fm Page 4 Friday, August 13, 1999 11:12 AM
READ THIS BEFORE
INSTALLATION
FCC STATEMENT
This telephone complies with Part 68 of
FCC Rules. Upon request, you must pro-
vide the FCC registration number and
the REN to your phone company. These
numbers are on the bottom of the base.
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 for your ET-687 is on the
bottom of the base.
Note: You must not connect your phone
to any of the following:
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 op-
eration. If ringer operation is impaired,
remove a device from the line.
• coin-operated systems
• party-line systems
• most electronic key phone systems
4
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43-687.fm Page 5 Friday, August 13, 1999 11:12 AM
CONTENTS
Installation ............................................................................................................ 6
Mounting the Phone ........................................................................................ 6
Connecting to the Phone Lines ................................................................. 6
On a Desk Top .......................................................................................... 7
On a Wall Plate ......................................................................................... 8
Directly on a Wall ...................................................................................... 9
Connecting and Charging the Battery Pack .................................................. 11
Setting the Dialing Mode ............................................................................... 13
Setting the Ringers’ Volume .......................................................................... 13
Operation ............................................................................................................ 14
Using the Handset ......................................................................................... 14
Making a Call .......................................................................................... 14
Answering Calls ...................................................................................... 14
Setting the Handset Volume ................................................................... 14
Using the Speakerphone ............................................................................... 15
Making a Call .......................................................................................... 15
Answering a Call ..................................................................................... 15
Adjusting the Speakerphone Volume ...................................................... 15
Using Mute .............................................................................................. 15
Putting a Call on Hold .................................................................................... 16
Using Redial .................................................................................................. 16
Switching Between the Handset and Speakerphone .................................... 16
Using Both the Handset and Speakerphone ................................................. 17
Making a Conference Call ............................................................................. 17
Three-Way Conference Call ................................................................... 17
Four-Way Conferencing .......................................................................... 17
Using the ET-687 With Extension Phones .................................................... 18
Using Flash ................................................................................................... 18
Using Tone Services on a Pulse Line ............................................................ 18
Using Page/Intercom ..................................................................................... 19
Memory Dialing ............................................................................................. 20
Storing a Number in Memory .................................................................. 20
Entering a Pause .................................................................................... 21
Dialing a Memory Number ...................................................................... 21
Chain-Dialing Service Numbers .............................................................. 21
Testing Stored Emergency Numbers ...................................................... 21
Using a Headset ............................................................................................ 22
Troubleshooting ................................................................................................. 23
Care and Maintenance ....................................................................................... 25
Replacing the Battery Pack ........................................................................... 26
The FCC Wants You to Know ........................................................................ 27
Lightning ........................................................................................................ 27
5
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43-687.fm Page 6 Friday, August 13, 1999 11:12 AM
INSTALLATION
You can connect the ET-687 to the tele-
phone lines in one of three ways:
MOUNTING THE PHONE
You can place the ET-687’s base on a
desk or table, or mount it on a standard
wall plate or directly on a wall. Choose a
location that is:
• connect two lines through a two-line
modular phone jack
• connect two lines through two one-
line modular phone jacks
• near an AC outlet
• connect one line through a one-line
modular phone jack.
• near a modular telephone line jack
• out of the way of normal activities
Notes:
• away from electrical machinery,
electrical appliances, metal walls or
filing cabinets, wireless intercoms,
alarms, and room monitors
• Your phone connects directly to a
modular phone line jack. If your
phone wiring does not have a modu-
lar jack, you can update it using
jacks and adapters available at your
local RadioShack store, or have the
phone company update it for you.
• away from other cordless phones
The base’s location affects the handset’s
range. If you have a choice of several lo-
cations, try each to see which provides
the best performance.
• The line that connects a two-line
phone jack to the phone company
wiring must be twisted-pair cable.
Otherwise, you might hear interfer-
ence (crosstalk) between the two
lines.
Caution: The supplied RadioShack
adapter was designed specifically for
your ET-687. Use only the supplied
adapter.
• The USOC number of the two-line
jack to be installed is RJ14C
(RJ14W for a wall plate). The USOC
number of a single-line jack is
RJ11C.
Connecting to the Phone Lines
To take full advantage of the ET-687’s
capabilities, you must have two phone
lines with separate phone numbers. If
you have only one line, you can order a
second from your phone company.
6
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43-687.fm Page 7 Friday, August 13, 1999 11:12 AM
On a Desk Top
Strain
Relief
Slot
1. Insert the bracket’s tabs into the
base’s upper tab slots as shown,
then press down on the bracket’s
clips and insert them into the clip
slots.
Clip Slots
To connect the phone to a single
one-line phone jack, plug one end of
the supplied cord into the TEL LINE
1/2 or TEL LINE 2 jack. Route the
cord through the strain-relief slot on
the bracket.
Clips
3. Insert the supplied AC adapter’s
barrel plug into the DC IN 9V jack on
the back of the base.
Upper Tab Slots
2. To connect the phone to a two-line
phone jack, plug one end of the sup-
plied two-line phone cord into the
TEL LINE 1/2 jack on the back of the
phone. Route the cord through the
strain-relief slot on the bracket.
Strain
Relief
Slot
4. Route the adapter’s cord through
the strain relief slot on the bottom of
the bracket.
Strain
Relief
Slot
Note: If you connect the phone to a
two-line phone jack with a two-line
cord, do not connect a cord to the
TEL LINE 2 jack or the phone might
not operate properly.
5. Plug the adapter into a standard AC
outlet.
To connect the phone to two one-
line phone jacks, plug one end of
the supplied two-line cord to the TEL
LINE 1/2 jack, and plug another cord
(not supplied) into the TEL LINE 2
jack. Route both cords through the
strain-relief slot on the bracket.
7
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43-687.fm Page 8 Friday, August 13, 1999 11:12 AM
6. Connect the phone cord(s) to the
modular phone line jack(s).
Note: If you connect the phone to a
two-line phone jack with a two-line
cord, do not connect a cord to the
TEL LINE 2 jack or the phone might
not operate properly.
To connect the phone to a one-line
wall plate jack and another one-line
jack, plug one end of the supplied
short, two-line cord to the TEL LINE
1/2 jack, and plug another cord (not
supplied) into the TEL LINE 2 jack.
7. Lift the base’s antenna to a vertical
position.
On a Wall Plate
1. Insert the bracket’s tabs into the
base’s lower tab slots as shown,
then press down on the bracket’s
clips and insert them into the clip
slots.
To connect the phone to a single
one-line wall plate jack, plug one
end of the supplied cord into the TEL
LINE 1/2 or TEL LINE 2 jack.
Lower Tab Slots
Tabs
3. Insert the supplied AC adapter’s
barrel plug into the DC IN 9V jack.
Clip Slots
2. To connect the phone to a two-line
wall plate jack, plug one end of the
supplied short, two-line phone cord
into the TEL LINE 1/2 jack on the
back of the phone.
8
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43-687.fm Page 9 Friday, August 13, 1999 11:12 AM
4. Route the adapter cord through the
narrow groove on the bracket. If you
are using two phone cords, route
the second cord through one of the
wide grooves on the bracket.
6. Plug the adapter into a standard AC
outlet.
Narrow
Groove
7. Press and lift out the handset
holder, flip it over as shown, then
snap it back into place.
Wide
Grooves
5. Plug the other end of the short mod-
ular cord into the wall plate jack,
then align the bracket’s keyhole
slots with the wall plate studs and
slide the base downward to secure
it. If you are using two phone cords,
plug the second cord into the sec-
ond phone jack.
8. Lift the base’s antenna to a vertical
position.
Directly on a Wall
To mount the base directly on the wall,
you need two screws (not supplied) with
heads that fit into the keyhole slots on the
bottom of the base.
5/16"
1. Drill two holes 315/16
inches (100 mm)
apart. Then thread a
15/16"
screw into each hole,
letting the heads ex-
tend about /16 inch (8
3
5
mm) from the wall.
9
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43-687.fm Page 10 Friday, August 13, 1999 11:12 AM
2. Insert the bracket’s tabs into the
base’s lower tab slots as shown,
then press down on the bracket’s
clips and insert them into the clip
slots.
Lower Tab Slots
Tabs
To connect the phone to a single
one-line phone jack, plug one end of
the supplied cord into the TEL LINE
1/2 or TEL LINE 2 jack.
Clip Slots
4. Insert the supplied AC adapter’s
barrel plug into the DC IN 9V jack.
3. To connect the phone to a two-line
phone jack, plug one end of the sup-
plied two-line phone cord into the
TEL LINE 1/2 jack on the back of the
phone.
5. Route the modular and adapter’s
cords through the grooves on the
bracket as shown. If you are using
two phone cords, route the second
cord through one of the wide
If you connect the phone to a
Note:
grooves on the bracket.
Grooves
two-line phone jack with a two-line
cord, do not connect a cord to the
TEL LINE 2 jack or the phone might
not operate properly.
To connect the phone to two one-
line phone jacks, plug one end of
the supplied two-line cord to the TEL
LINE 1/2 jack, and plug another cord
(not supplied) into the TEL LINE 2
jack.
10
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43-687.fm Page 11 Friday, August 13, 1999 11:12 AM
6. Align the bracket’s keyhole slots
with the mounting screws and slide
the base downward to secure it.
10. Lift the base’s antenna to a vertical
position.
CONNECTING AND
CHARGING THE BATTERY
PACK
The ET-687 comes with a rechargeable
nickel-cadmium battery pack in the
handset but not connected. Before using
the phone, you must connect the battery
pack, then charge it for about 24 hours.
7. Connect the phone cord(s) to the
modular phone line jack(s).
1. Press down and slide off the battery
pack compartment cover as shown.
8. Plug the adapter into a standard AC
outlet.
2. Unfasten the plastic retainer strap
and lift the battery pack out of the
compartment.
3. Plug the battery pack’s connector in-
to the socket in the compartment
(the connector fits only one way),
then replace the battery pack and
fasten the retainer strap.
9. Press and lift out the handset
holder, flip it over as shown, then
snap it back into place.
11
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43-687.fm Page 12 Friday, August 13, 1999 11:12 AM
4. Replace the cover.
• If the battery pack becomes weak
during a call, the handset beeps ev-
ery 3 seconds. If this happens, you
must recharge the battery pack be-
fore you can make another call.
• Using a pencil eraser, clean the
charging contacts on the handset
and the base about once a month.
To charge the battery pack, place the
handset on the base either faceup or
facedown. The CHARGE indicator on
the base lights.
CHARGE
Indicator
• If the battery pack becomes com-
pletely discharged or the base loses
power while the handset is away,
the security access-protection code
needs to be reset. To reset the secu-
rity code, return the handset to the
base. If it was the handset that lost
power, leave the handset on the
base to charge the battery pack.
Recharge the battery pack when the
handset beeps every 3 seconds or its
line indicators flash every 3 seconds.
Important: Be sure the battery pack is
properly connected before you try to
charge it. The CHARGE indicator lights
when the handset is on the base, even if
the battery pack is not connected.
• About once a month, fully discharge
the battery pack by keeping the hand-
set off the base until the low battery
indications (flashing line indicators
and beeping) appear. Otherwise, the
battery pack loses its ability to fully re-
charge.
Notes:
• When you first use the phone after
charging or recharging the battery
pack, it might not work and you
might hear an error tone when you
• The supplied battery pack should
last about one year. When it loses
its ability to fully recharge, order a
replacement battery pack from your
LINE 1
LINE 2
or . If this hap-
press
pens, return the handset to the base
for about 5 seconds. This resets the
security access-protection code.
local
RadioShack store (see
“Replacing the Battery Pack” on
Page 26).
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43-687.fm Page 13 Friday, August 13, 1999 11:12 AM
SETTING THE DIALING
MODE
SETTING THE RINGERS’
VOLUME
DIAL MODE
Set
on the back of the base
At any time except during a call, press t
or s to set the handset’s ringer volume.
The phone rings at the selected volume.
for the type of service you have (tone or
pulse). If you are not sure which type
you have, once the battery pack is fully
charged, do this test.
DIAL MODE
T
1. Set
to (tone).
To set the base’s ringer volume, set
RING VOL
on the back of the base to
HI
LINE 1
2. Press
on the base. The line 1
OFF LO
,
, or
.
indicator lights.
0
3. Press any number other than .
Note: If your phone system requires
that you dial an access code (9, for
example) before you dial an outside
number, do not press the access code
number either.
If the dial tone stops, that line has
tone service.
If the dial tone continues, that line
has pulse service.
LINE 1
4. Press
to release the line,
then repeat the test for Line 2.
If you have tone service on both lines,
DIAL MODE
T
leave
set to (tone).
If you have pulse service on either line,
DIAL MODE
P
set
to (pulse).
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OPERATION
To answer a call if the handset is away
from the base, press the line button for
the line that is ringing, or simply press
any number button. The indicator for the
line you are using lights at the handset
and flashes at the base.
USING THE HANDSET
Making a Call
To make a call, lift the handset, press
LINE 1 (or LINE 2), then dial the number.
When you press a line button on the
handset, that line’s indicator on the
handset lights. The same line’s indicator
on the base flashes to show that some-
one is using that line at the handset.
If you receive a call on one line while you
are using the handset to talk on the oth-
er, you hear three ring tones through the
handset. Press the line button for the in-
coming call’s line. The current call is au-
tomatically put on hold.
If both lines have an incoming call,
pressing a number key answers the line
that began ringing first.
Setting the Handset Volume
Note: If a line indicator on the handset is
flashing, someone is using that line at
the base. Press the other line button.
To increase the handset’s volume during a
call, press VOL s. Press VOL t to return to
the normal setting. When you hang up or
transfer a call to the base, the volume re-
turns to the normal setting.
To end a call, press LINE 1 (or LINE 2), or
return the handset to the base.
Answering Calls
When a call comes in, the line indicator
for that line flashes at the handset and
base.
Note: To help you tell which line is ring-
ing, each line has a distinctive ring tone.
Note: When you press s while the volume
is high or t while the volume is normal, an
error tone (five quick beeps) sounds.
To answer a call if the handset is on the
base, simply lift the handset. The indica-
tor for the line you are using lights at the
handset and flashes at the base.
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43-687.fm Page 15 Friday, August 13, 1999 11:12 AM
flashes. Press the line button for the in-
coming call. The current call is automati-
cally put on hold.
USING THE
SPEAKERPHONE
Making a Call
If both lines have an incoming call,
pressing a number key answers the line
that began ringing first.
LINE 1
LINE 2
),
To make a call, press
(or
listen for a dial tone, then dial the num-
ber. When you press a line button on the
base, that line’s indicator on the base
lights. The same line’s indicator on the
handset flashes to show that someone is
using that line at the handset.
Adjusting the Speakerphone
Volume
To set the speakerphone’s volume, slide
VOLUME
on the right side of the base.
Note: If a line indicator on the base is
flashing, someone is using that line at
the handset. Press the other line button.
Using Mute
While talking on the speakerphone, you
can temporarily turn off the ET-687’s mi-
LINE 1
LINE 2
).
To end a call, press
(or
MUTE
crophone by pressing
so the other
party cannot hear you. The line indicator
flashes red when a line is muted.
Answering a Call
When a call comes in, the line indicator
for that line flashes at the handset and
base.
To answer a call, press the line button for
the line that is ringing, or simply press
any number key. The indicator for that
line lights at the base and flashes at the
handset.
MUTE
Press
again to resume your con-
does not work during an in-
versation.
If you receive a call on one line while you
are using the speakerphone to talk on
the other, the new call’s line indicator
MUTE
Note:
tercom call.
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43-687.fm Page 16 Friday, August 13, 1999 11:12 AM
Notes:
• Each keypad has a separate redial
PUTTING A CALL ON
HOLD
memory. You cannot redial a num-
ber you dialed on one keypad us-
HOLD
Press
on the handset or base to
REDIAL
on the other.
put a call on hold. The indicator for that
line flashes on the handset and lights red
at the base. While a call is on hold, you
can place the handset on the base or use
the other line without disconnecting the
current call.
ing
• The redial memory is common to
both lines. You can redial the num-
ber you originally dialed on Line 1
using Line 2.
• The redial memory holds up to 32
digits, so you can redial long dis-
tance as well as local numbers.
FLASH
• When you press
and press
any number key, the redial memory
stores the number entered after
FLASH
, deleting any previous entry
To release a line from hold, press that
line’s button on the handset or base, or
pick up an extension phone. If the hand-
set is on the base, you can release a call
from hold simply by lifting the handset.
(see “Using Flash” on Page 18).
SWITCHING BETWEEN
THE HANDSET AND
SPEAKERPHONE
Note: If you put both lines on hold, lifting
the handset might not release the call. If
this happens, press the line button to re-
lease that line.
To switch to the speakerphone when you
HOLD
are using the handset, press
the handset, then press that line’s button
LINE 1 LINE 2
on
(
or
) on the base.
USING REDIAL
To switch to the handset when you are
using the speakerphone and the handset
is on the base, just lift the handset. If the
handset is away from the base, press
You can quickly dial the last number di-
aled on either Line 1 or Line 2. When you
hear a dial tone, simply press
the handset or base.
REDIAL
on
HOLD
on the base, then press that line’s
LINE 1
button (
LINE 2
) on the handset.
or
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43-687.fm Page 17 Friday, August 13, 1999 11:12 AM
CONF
. Both line indicators
3. Press
USING BOTH THE
HANDSET AND
SPEAKERPHONE
light steadily. You can now talk with
both parties, and they can talk with
each other.
To use the handset to join a call at the
base, or to use the base to join a conver-
sation at the handset, press the line but-
ton for the line that is in use. You hear a
warning tone (three long beeps). Before
the warning tone ends, press the line
button again.
4. To end the conference call, press
one line button, then the other. If you
want to hang up one line and con-
tinue talking on the other, press the
line button you want to hang up.
During the call, you can hang up at either
the base or the handset without discon-
necting the call. To end the call, you must
hang up both the base and handset.
To talk on one line without disconnecting
MAKING A CONFERENCE
CALL
HOLD
the other, press
, then the button
for the line you want to talk on. To return
to a three-way conversation, press
CONF
.
Three-Way Conference Call
Follow these steps to use both phone
lines to set up a three-way call. The pro-
cedure is the same for the handset and
the base
Four-Way Conferencing
Follow these steps to use both lines and
the ET-687’s intercom function to set up
a four-way call (see “Using Page/Inter-
com” on Page 19).
1. Make or answer a call on one line,
then put that call on hold or simply
press the other line’s button.
1. Make a three-way conference call.
2. Make or answer a call on the other
line.
INTCM
INTERCOM
2. Press
on the handset or
on the base to page the
other keypad.
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43-687.fm Page 18 Friday, August 13, 1999 11:12 AM
3. To answer the page press INTCM on
the handset or INTERCOM on the
base, then press CONF.
USING FLASH
FLASH performs the electronic equiva-
lent of a switchhook operation for special
services, such as Call Waiting.
To end the conference call, press LINE 1
and LINE 2 on one keypad, then press
LINE 2 on the other keypad.
To hang up one line and continue talking
on the other, press the line button that
you want to hang up.
You can also make a conference
Note:
call using both the ET-687 and an exten-
sion phone. (See “Using the ET-687 with
Extension Phones).
For example, if you have Call Waiting,
press FLASH to answer an incoming call
without disconnecting the current call.
Press FLASH again to return to the first
call.
USING THE ET-687 WITH
EXTENSION PHONES
If you do not have any special ser-
vices, pressing FLASH might disconnect
Note:
the current call.
The ET-687 detects when an extension
phone is in use, and the corresponding
line indicator flashes.
USING TONE SERVICES
ON A PULSE LINE
To join the conversation from the hand-
set or the base, press the line button for
the line in use. You hear a warning tone
(three long beeps). Before the warning
tone ends, press the line button again.
Some special services, such as bank-by-
phone, require tone signals. If you have
pulse service, you can still use these
special tone services by following these
steps.
If you hang up the ET-687 when
Note:
someone is still using an extension
phone, the ET-687’s line indicator might
not stay lit.
1. Be sure DIAL MODE is set to P.
2. Dial the service’s main number.
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43-687.fm Page 19 Friday, August 13, 1999 11:12 AM
3. When the service answers, press
TONE ( ). Any additional numbers
you dial are sent as tone signals.
To page the handset from the base,
press INTERCOM. The handset and base
ring. Press INTCM on the handset to an-
swer the page. Both line indicators on
the handset light, and the CHARGE indi-
cator on the base lights.
4. When you hang up, the phone auto-
matically resets to pulse dialing.
USING PAGE/INTERCOM
To end an intercom call, press INTCM on
the handset, press INTERCOM on the
base, or hang up the handset.
You can use the ET-687 as a two-way
pager and intercom between the base and
the handset. This is useful if the handset is
away from the base and you want to lo-
cate it, or if you want to have a conversa-
tion between someone with the handset
and someone at the base.
During a call, you can page someone at
the base or the handset. Press INTER-
COM (on the base) or INTCM (on the
handset). The current call is put on hold.
• To transfer the call, press INTER-
COM or INTCM again when the per-
son at the handset or base answers.
To page the base from the handset,
press INTCM. The base and handset
ring. Press INTERCOM on the base to an-
swer the page. Both line indicators on
the handset light, and the CHARGE indi-
cator on the base lights.
• To start a three-way call, tell the per-
son at the base or handset to press
LINE 1 (or LINE 2), then press the
same button twice on your keypad
when they answer the page.
Notes:
• You cannot page the base or hand-
set if it is already in use. You will
hear a warning tone.
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43-687.fm Page 20 Friday, August 13, 1999 11:12 AM
• If a call comes in during an intercom
conversation, either of the intercom
parties can answer the call as they
normally would. Simply press the
ringing line’s button. The intercom
call automatically disconnects.
Notes:
• Each number stored in the hand-
set’s memory can be up to 20 digits,
and each number stored in the base
can be up to 16 digits.
• You cannot dial a number stored in
one memory location (the base or
the handset) using the keypad on
the other.
MEMORY DIALING
You can store up to 20 numbers in mem-
ory (ten each in the handset’s and base’s
memory), then dial a stored number by
pressing a one-digit memory location
number.
• An error tone sounds and the phone
exits the storing process if you wait
more than 20 seconds between
each keypress.
Use the supplied memory directory
stickers to record your stored numbers.
(Use a pencil in case you need to
change the number later.) Peel the
backing from each sticker and attach
them to the phone as shown.
Storing a Number in Memory
Follow these steps to store a number in
the handset’s memory. To store a num-
ber in the base’s memory, start at Step 2.
1. Lift the handset.
MEM
. The
CHARGE
indicator
2. Press
on the base flashes, or the line indi-
cators on the handset flash.
3. Enter the number and any tone and
pause entries (see “Using Tone Ser-
vices on a Pulse Line” on Page 18
and “Entering a Pause” on Page 21).
Note: Each tone or pause entry
uses one digit of memory.
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43-687.fm Page 21 Friday, August 13, 1999 11:12 AM
4. Press MEM, then enter the memory
location number (0–9). A long beep
confirms that the number is stored.
Dialing a Memory Number
To dial a number stored in the handset’s
memory, lift the handset and press either
line button. When you hear a dial tone,
press MEM and enter the memory loca-
tion number for the number you want to
dial.
: If the phone sounds five quick
Note
beeps, you have made an entry
error, and the number was not
stored. Start again from Step 2.
To replace a stored number, simply store
a new number in its place.
To dial a number stored in the base’s
memory, press either line button. When
you hear a dial tone, press MEM and en-
ter the memory location number for the
number you want to dial.
To erase a stored number, press MEM
twice, then press the number for the
memory location (0–9) you want to clear.
A long beep sounds.
Chain-Dialing Service Numbers
You cannot store a number at the
base while the handset is in use.
Note:
For quick recall of numbers for special
services (such as bank by phone), store
each group of numbers in its own mem-
ory location.
Entering a Pause
In some telephone systems, you must
dial an access code (9, for example) and
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.
Dial the service’s main number first.
Then, at the appropriate place in the
call, press MEM and the number for the
location where the additional information
is stored.
Testing Stored Emergency
Numbers
To enter a 2-second pause, press PAUSE
on the handset or base. You can add
more pause entries for a longer pause.
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
periods. Also, remain on the line to ex-
plain the reason for your call.
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43-687.fm Page 22 Friday, August 13, 1999 11:12 AM
Notes:
• Connecting a headset disconnects
USING A HEADSET
You can talk with hands-free conve-
nience using an optional headset that
the handset’s earpiece and micro-
phone, but it does not affect the ET-
687’s speakerphone.
3
has a /32-inch (2.5-mm) plug. Contact
your local RadioShack store for a suit-
able headset.
VOL
•
s or t on the handset also con-
trols the connected headset’s vol-
ume.
To connect the headset, open the rub-
ber cover marked
handset, then insert the headset’s plug
into the jack.
on the side of the
• If you place the handset on the base
face down to recharge it while the
headset is connected, be sure the
handset seats properly.
With a headset connected, you can
make or answer calls as usual using the
speakerphone or the keys on the hand-
set.
You can use a handset holder (available
at your local RadioShack store) to hang
the handset on your belt for greater con-
venience.
When you finish using the headset, dis-
connect it from the handset and close
the rubber cover to protect the jack.
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43-687.fm Page 23 Friday, August 13, 1999 11:12 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 the base’s modular cord(s) and AC
adapter are correctly and securely connected.
Be sure the handset’s battery pack is correctly
connected and charged.
Return the handset to the base for a few sec-
onds to reset the security access-protection
code.
The handset stops working or
works poorly during a call.
Move the handset closer to the base.
Lift the base’s antenna to a vertical position.
Be sure the handset’s battery pack is correctly
connected and charged.
Low volume or unusual
sounds.
Someone has picked up another phone on the
same line. Hang up the other phone.
Severe noise interference.
Keep the handset away from computers,
remote control toys, wireless microphones,
alarm systems, intercoms, room monitors, fluo-
rescent lights, and electrical appliances.
Move the base to another location or turn off
the source of interference.
Hang up and redial the number.
The handset cannot be oper-
ated at a useful distance from
the base because the signal
becomes weak or noisy
(handset’s range has
Lift the base’s antenna to a vertical position.
Be sure neither the handset’s nor base’s
antenna is touching a metal surface.
Recharge the battery pack.
decreased).
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43-687.fm Page 24 Friday, August 13, 1999 11:12 AM
Problem
Suggestion
The handset battery pack
does not charge.
Check the charging contacts on the handset
and base. If they are dirty, clean them with a
pencil eraser.
Be sure the battery pack is properly connected.
Be sure the handset is properly seated on the
base.
Replace the battery pack (see “Replacing the
Battery Pack” on Page 26).
The handset does not ring or
receive a page.
Lift the base’s antenna to a fully vertical posi-
tion.
Move the handset closer to the base.
Move the base away from other electrical
devices.
Recharge the battery pack.
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.
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43-687.fm Page 25 Friday, August 13, 1999 11:12 AM
CARE AND MAINTENANCE
Your RadioShack ET-687 Two-Line 900MHz Digital Spread Spectrum Cordless Tele-
phone is an example of superior design and craftsmanship. The following suggestions
will help you care for your ET-687 so you can enjoy it for years.
Keep the ET-687 dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.
Use and store the ET-687 only in normal temperature environments.
Temperature extremes can shorten the life of electronic devices, dam-
age battery packs, and distort or melt plastic parts.
Keep the ET-687 away from dust and dirt, which can cause premature
wear of parts.
Handle the ET-687 gently and carefully. Dropping it can damage circuit
boards and cases and can cause the ET-687 to work improperly.
Use only a battery pack of the required size and recommended type.
Batteries can leak chemicals that damage your ET-687’s electronic
parts.
Wipe the ET-687 with a damp cloth occasionally to keep it looking new.
Do not use harsh chemicals, cleaning solvents, or strong detergents to
clean the ET-687.
Modifying or tampering with the ET-687’s internal components can cause a malfunc-
tion and might invalidate its warranty and void your FCC authorization to operate it. If
your ET-687 is not performing as it should, take it to your local RadioShack store for
assistance. If the trouble is affecting the telephone lines, the phone company can ask
you to disconnect your ET-687 until you have resolved the problem.
25
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43-687.fm Page 26 Friday, August 13, 1999 11:12 AM
REPLACING THE
BATTERY PACK
If you follow the instructions in “Connect-
ing and Charging the Battery Pack” on
Page 11, the battery pack should last
about one year. If the battery pack does
not hold a charge for more than 2 hours
after an overnight charge, replace it with
a new 3.6-volt, 600 mAh battery pack
with a connector that fits the socket in
the battery compartment. You can order
a replacement battery pack through your
local RadioShack store.
4. Replace the cover.
Cautions:
• You must use a replacement battery
pack of the same size and type.
• Do not dispose of the battery pack in
a fire because it might explode.
Install the new battery pack as de-
scribed below, then charge it for about
24 hours.
• Do not open or mutilate the battery
pack.
Note: To avoid losing memory numbers,
try to install and begin charging the new
battery pack within 1 minute.
• Be careful not to short the battery
pack by touching the connector’s
pins with conducting materials, such
as rings, bracelets, and keys. The
battery pack or conductor might
overheat and burn.
1. Press down and slide off the battery
pack compartment cover as shown.
If you have trouble replacing the battery
pack, take the phone to your local Ra-
dioShack store for assistance.
2. Unfasten the plastic retainer strap
and lift the battery pack out of the
compartment, then gently pull on the
battery connector to disconnect it.
Important: This product contains a re-
chargeable nickel-cadmium battery
pack. At the end of the battery pack’s
useful life, it must be recycled or dis-
posed of properly. Contact your local,
county, or state hazardous waste man-
agement authorities for information on
recycling or disposal programs in your
area. Some options that might be avail-
able are: municipal curb-side collection,
drop-off boxes at retailers such as your
local RadioShack store, recycling collec-
tion centers, and mail-back programs.
3. Insert the new battery pack’s con-
nector into the socket in the com-
partment, place the battery pack into
the compartment, and refasten the
retainer strap.
26
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43-687.fm Page 27 Friday, August 13, 1999 11:12 AM
If you cannot eliminate the interference,
the FCC requires that you stop using
your phone.
THE FCC WANTS YOU TO
KNOW
In the unlikely event that your phone
causes problems on the phone line, the
phone company can temporarily discon-
tinue your service. If this happens, the
phone company attempts to notify you in
advance. If advance notice is not practi-
cal, the phone company notifies you as
soon as possible and advises you of
your right to file a complaint with the
FCC.
Some cordless telephones operate on
frequencies that might cause interfer-
ence to nearby TVs and VCRs. To mini-
mize or prevent such interference, the
base of the cordless telephone should
not be placed near or on top of a TV or
VCR.
LIGHTNING
Also, the phone company can make
changes to its lines, equipment, opera-
tions, or procedures that could affect the
operation of this telephone. The tele-
phone company notifies you of these
changes in advance, so you can take the
necessary steps to prevent interruption
of your telephone service.
Your telephone has built-in lightning pro-
tection to reduce the risk of damage
from surges in telephone line and power
line current. This lightning protection
meets or exceeds FCC requirements.
However, lightning striking the tele-
phone or power lines can damage your
telephone.
Your phone might cause TV or radio in-
terference even when it is operating
properly. To determine whether your
phone is causing the interference, turn
off your phone. If the interference goes
away, your phone is causing it. Try to
eliminate the interference by:
Lightning damage is not common. Nev-
ertheless, if you live in an area that has
severe electrical storms, we suggest
that you unplug your phone during
storms to reduce the possibility of dam-
age.
• moving your phone away from the
receiver
• connecting your phone to an AC
outlet that is on a different electrical
circuit from the receiver
• contacting your local RadioShack
store for help
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43-687.fm Page 28 Friday, August 13, 1999 11:12 AM
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workman-
ship under normal use for one (1) year from the date of purchase from RadioShack company-owned
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-
dioShack MAKES NO EXPRESS WARRANTIES 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 WARRANTIES CONTAINED
HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RE-
SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-
CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-
TAL, 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 in-
cidental or consequential 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, un-
less 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 prop-
erty of RadioShack. New or reconditioned parts and products may be used in the performance 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 warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or
maintenance, alteration, lightning 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
UCZZ01606BZ
11A8N
Printed in the Philippines
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