V-tech VT 1721 User manual

1
Congratulations! You have pur-
chased one of the most sophisticated
cordless telephones on the market!
The VTech VT 1721 has been de-
signed to offer a new standard in cord-
less telephone technology.
Unlike most other cordless phones,
theVTechVT1721digitizesyourvoice
using advanced digital voice coding to
provide noise and distortion free per-
formance. In most conditions you will
not be able to tell you are using a
cordless phone. Gone are the annoy-
ances of static, interference and hav-
ing to listen to other people’s conver-
sations on your cordless phone.
The VTech VT 1721 scrambles your
voice before it transmits it. This allows
youthesecurityofknowingthatnoone
can tune in and eavesdrop on your
conversations.
The VTech VT 1721 decodes and
displays name and number Caller ID
(CID) information where available and
when subscribed to. The alpha-nu-
meric display will show both the name
and number of the calling party (when
available). Up to 15 name characters
and/or 11 phone number digits can be
displayed on the LCD.
With the VTech VT 1721, the user
can easily answer a call by pressing
anykeyotherthantheOFForVOLUME
INTRODUCTION
Keys. In addition, the handset keypad
and LCD illuminate while the handset
rings to signal an incoming call. This is
very useful in a dark environment.
The VTech VT 1721 alsoprovides a
one-wayPage/Find.PressingtheBase
Unit PAGE key will cause the Handset
to ringinamannerwhichdistinguishes
it from normal incoming ringing. This
can be used to alert the Handset user
or to simply locate the Handset in the
event that it is misplaced.
The VTech VT 1721 uses special
memory in both the Base Unit and
Handset which is not susceptible to
power failures. This provides perma-
nentstorageofallspeeddialnumbers,
CID information as well as the Base
Unit and Handset security codes.
When a spare battery is installed in
theBaseUnit,theVTechVT1721uses
this battery to provide operational
backupincaseofpowerfailure. Inthis
way you have access to all normal
phone functions during a total power
outage. Calls can still be placed and
received without interruption. More
than 4 hours backup will be possible
witha fully chargedbattery in theBase
Unit.
The phone will also alert you when
youareOutofRangeevenwhenyou're
not using the phone!

2
SPECIALFEATURES
• 900 MHz Operation.
• Direct Sequence Spread Spec-
trum - Digital Cordless Telephone.
• Digitally-Scrambled Voice Com-
munication.
• Simultaneous display of Name,
Number, and Time/Date stamp for
Caller ID.
• 30 Caller ID memory locations.
• 4-row by 16-character dot matrix
alphanumeric display.
• Backlit display on handset.
• Backlit handset keypad.
• Three Soft Keys which allow the
user to access different functions,
depending on which mode the
phone is currently in (i.e. Caller ID,
Memory Programming, etc.).
• Smart Dialing from Caller ID
memory eliminates the need to
pre-program your local area code.
• 25 locations Programmable
Memory for 16-Digit Phone
Number. Each location can also
be assigned up to a 15 character
name.
• Out of Range indication while the
handset is in use or in standby
mode.
INTRODUCTION
• Removable handset battery pack.
• Spare battery charger in the base
unit.
• Complete battery back-up in case
of power failure (with optional
spare battery pack installed in
base).
• Face up or down Handset charg-
ing.
• Easy answer - When the phone
rings, simply press any key other
than OFF or the Volume Keys on
the handset to answer.
• Auto hang up when returning the
handset to the base cradle.
• 24-Bit Digital Security Code.
• Low Battery Detect and Warning
indicator.
• Tone or Pulse dialing.
• Visual Message Waiting Indication
(VMWI) for use with voicemail
service.
• Up to 7 hours of continuous talk
time or 14 days standby time.
• 8-level Volume control on Hand-
set.
• Programmable Ringer Tones and
Volume.
• Headset Compatible, for use with
2.5mm headsets.
This manual is designed to familiar-
ize you with the VTech VT 1721. We
strongly recommend you read the
manual before using your phone.

3
PARTS CHECKLIST
1. Baseunit,Handset,BeltClipandACadaptor
2.One-Line Telephone Cord
3.Battery Pack
4.Wall mount accessory
To purchase replacement battery
packs, call VTechat1-800-595-9511.
INTRODUCTION

4
FCC AND IC REGULATIONS
This equipment complies with Parts
15 and 68 of the Federal Communi-
cations Commission (FCC) rules for
theUnitedStates. Italsocomplieswith
regulations RSS210 and CS-03 of In-
dustry and Science Canada. Opera-
tion is subject to the following two con-
ditions: (1) this device may not cause
interference, and (2) this device must
accept any interference, including in-
terference that may cause undesired
operation of the device.
Theundersideof the Base Unit con-
tainingengravementsofeithertheFCC
registrationnumberandRingerEquiva-
lence Number (REN), or the IC regis-
tration number . You must, upon
request,providethisinformationtoyour
local telephone company.
This equipment is compatible with
inductively coupled hearing aids.
Should you experience trouble with
this telephone equipment, please con-
tact:
VTECHCUSTOMERSERVICEDE-
PARTMENT at 1-800-595-9511.
The telephone company may ask
you to disconnect this equipment from
the line network until the problem has
been corrected.
FCC Part 15
Warning: Changes or modifications
to this unit not expressly approved by
the party responsible for compliance's
couldvoidtheuser’sauthoritytooper-
ate the equipment.
The equipment has been tested and
foundtocomplywithpart15oftheFCC
rules. These limits are designed to
provide reasonable protection against
harmful interference in a residential
installation. This equipment gener-
ates, uses and can radiate radio fre-
quencyenergyand, if not installed and
used in accordance with the instruc-
tions, may cause harmful interference
to radio communications. However,
there is no guarantee that interference
will not occur in a particular installa-
tion. If this equipment does cause
harmful interference to radio or televi-
sion reception, which can be deter-
minedbyturningtheequipmentoffand
on, the user is encouraged to try and
correctthe interferencebyoneormore
of the following measures:
- Reorient or relocate the receiving
antenna.
- Increase the separation between the
equipment and receiver.
- Connect the equipment into an outlet
or on a circuit different from that to
which the receiver is connected.
- Consult the dealer or an experienced
radio/TV technician for help.

5
FCC AND IC REGULATIONS
FCC Part 68
The FCC requires that you connect
your cordless telephone to the nation-
wide telephone network through a
modular telephone jack (USOC
RJ11C, RJ11W or RJ14).
Your telephone company may dis-
continue your service if your equip-
ment causes harm to the telephone
network. They will notify you in ad-
vance of disconnection, if possible.
Duringnotification,youwillbeinformed
of your right to file a complaint with the
FCC.
Occasionally, your telephone com-
pany may make changes in its facili-
ties, equipment, operation, or proce-
duresthatcouldaffecttheoperationof
yourequipment. Ifso,youwillbegiven
advance notice of the change to give
you an opportunity to maintain unin-
terrupted service.
TheBaseUnitcontainsnouserserv-
iceableparts. TheHandsetcontainsa
user replaceable battery pack.
Ifitisdeterminedthatyourtelephone
equipment is malfunctioning, the FCC
requires that it not be used and that it
be unplugged from the modular jack
until the problem has been corrected.
Repairs to this telephone equipment
canonlybemadebythemanufacturer
or its authorized agents or by others
who may be authorized by the FCC.
For repair procedures, follow the in-
structions outlined under the Limited
Warranty.
This equipment may not be used on
coin service provided by the phone
company or Party Lines.
TheRENisusefulindeterminingthe
numberof devices you may connect to
your telephone line and still enable the
devicestoringwhenyoureceiveacall.
The general rule is that the REN value
should not exceed 5.0 total; however,
contact your local telephone company
for the specific number in your area.

6
Before installing this equipment,
users should ensure that it is permis-
sibletobeconnectedtothefacilitiesof
the local telecommunications com-
pany. The equipment must also be
installed using an acceptable method
of connection. The customer should
be aware that compliance with the
aboveconditionsmaynotpreventdeg-
radation of services in some situa-
tions.
Repairs to certified equipment
should be made by an authorized
Canadian maintenance facility desig-
nated by the supplier. Any repairs or
alterations made by the user to this
equipment, or equipment malfunc-
tions, may give the telecommunica-
FCC AND IC REGULATIONS
IC(Industry Canada)
This telephone is registered for use
in Canada.
Notice:The Ringer Equivalence
Number(REN)assignedto each termi-
nal device denotes the percentage of
the total load to be connected to a
telephone loop which is used by the
device, to prevent overloading. The
terminationofaloopmayconsistofany
combination of devices subject only to
the requirement that the sum of the
Ringer Equivalent Numbers of all de-
vices not exceed 5.0.
Notice: The Industry Canada label
identifiescertifiedequipment. Thiscer-
tification means that the equipment
meets certain telecommunications
network protective, operational and
safety requirements. The Department
does not guarantee the equipment will
operate to the user's satisfaction.
tions company cause to request the
user to disconnect the equipment.
Users should ensure, for their own
protection, that the electrical ground
connections of the power utility, tel-
ephone lines and internal metallic
water pipe system, if present, are con-
nected together. This precaution may
beparticularlyimportantinrural areas.
Caution: Users should not attempt
tomakesuchconnectionsthemselves,
butshouldcontacttheappropriateelec-
trical inspection authority, or electri-
cian, as appropriate.
Your VTech VT 1721 is designed to
operateatthemaximumpowerallowed
by the FCC and IC. This means your
Handset and Base Unit can communi-
cateonlyoveracertaindistance-which
will depend on the location of the Base
Unit and Handset, weather, and the
construction and layout of your home
or office.

7
When using your telephone equip-
ment, basic safety precautions should
alwaysbefollowedtoreducetheriskof
fire, electric shock and injury to per-
sons, including the following:
1.Read and understand all instruc-
tions.
2.Follow all warnings and instruc-
tions marked on the product.
3.Unplug this product from the wall
outlet before cleaning. Do not use
liquid cleaners or aerosol clean-
ers. Use a damp cloth for cleaning.
4.Do not use this product near water
(for example, near a bath tub,
kitchen sink, or swimming pool).
5.Do not place this product on an
unstable cart, stand, or table. The
product may fall, causing serious
damage to the product.
6.Slots and openings in the cabinet
on the back or bottom are provided
for ventilation. To protect it from
overheating, these openings must
not be blocked by placing the
product on a bed, sofa, rug, or
other similar surface. This product
should never be placed near or
over a radiator or heat register.
This product should not be placed
in a built-in installation where
proper ventilation is not provided.
7.This product should be operated
only from the type of power source
indicated on the marking label. If
you are not sure of the type of
IMPORTANT SAFETY INSTRUCTIONS
power supply to your home, con-
sult your dealer or local power
company.
8.Do not allow anything to rest on the
power cord. Do not locate this
product where the cord will be
abused by persons walking on it.
9.Never push objects of any kind into
this product through cabinet slots
as they may touch dangerous
voltage points or short out parts
that could result in a risk of fire or
electric shock. Never spill liquid of
any kind on the product.
10.To reduce the risk of electric
shock, do not disassemble this
product, but take it to an authorized
service facility. Opening or remov-
ing cabinet parts other than speci-
fied access doors may expose you
to dangerous voltage or other
risks. Incorrect reassembling can
cause electric shock when the
appliance is subsequently used.
11.Do not overload wall outlets and
extension cords as this can result
in the risk of fire or electric shock.
12. Unplug this product from the wall
outlet and refer servicing to an
authorized service facility under
the following conditions:
A. When the power supply cord or
plug is damaged or frayed.
B. If liquid has been spilled into the
product.

8
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
C. If the product has been exposed
to rain or water.
D. If the product does not operate
normally by following the operat-
ing instructions. Adjust only those
controls that are covered by the
operating instructions, because
improper adjustment of other con-
trols may result in damage and will
often require extensive work by an
authorized technician to restore
the product to normal operation.
E. If the product has been dropped
and the cabinet has been dam-
aged.
F. If the product exhibits a distinct
change in performance.
13.Avoid using a telephone (other
than a cordless type) during an
electrical storm. There may be a
remote risk of electric shock from
lighting.
14.Do not use the telephone to
report a gas leak in the vicinity of
the leak.
VTECH CUSTOMER SERVICE
DEPARTMENT at 1-800-595-9511.

9
The Handset of your VTech VT
1721 cordless telephone is powered
by a rechargeable battery pack. It
charges automatically whenever the
HandsetisintheBaseUnit. Youshould
charge the battery pack for 16 hours
when you first receive your phone.
You’ll know the battery pack needs
charging when:
• The low battery message is dis-
played:
• The Handset seems completely
dead, the LCD is completely clear
and does not activate when you
press the keys.
TO CHARGE THE BATTERY
PACK
Tochargethebatterypack,placethe
Handset in the Base Unit. The
CHARGING indicator will light to show
theHandsetis seatedproperlyandthe
battery pack is charging. It is recom-
mended that the battery pack be
charged for at least 16 hours initially.
Afterwards, 8 hours of maintenance
charging should be sufficient. You can
use your telephone before that with
diminished capacity, but it is best to
chargethebatterypackfully.Itwilltake
several recharge cycles to maximize
the charge capacity of your battery
pack. The maximum battery life be-
INSTALLING THE BATTERY PACK
tween charges is 7 hours of continu-
ous talk time or 14 days of stand by.
Alternatively, if you have purchased
a spare battery pack and it has been
charging in the Base Unit, simply ex-
change the drained Handset battery
pack with the fully charged replace-
ment battery pack from the Base Unit
charger. Place the drained Handset
batterypackintotheBaseUnitcharger
so that it will charge.
TheBaseUnitsparebatterycharger
does NOT charge a battery pack as
quickly as the main Handset battery
charger. A full charge requires 24
hours.
A WORD ABOUT RECHARGE-
ABLEBATTERIES
YourNi-Cadbattery pack recharges
whenever the Handset is returned to
the Base Unit.
IT’SIMPOSSIBLETOOVER-CHARGE
THEBATTERYPACK
The battery pack can be recharged
manytimesbutifyou get a low-battery
signalevenafter8hoursofchargingin
theBaseUnitcradle(or24hoursinthe
Base Unit spare battery charger), the
battery pack(s) should be replaced.
To purchase replacement battery
packs,callVTechat1-800-595-9511.

10
INSTALLING THE BATTERY PACK
REPLACING THE HANDSET
BATTERY PACK
Follow the steps below:
1.Remove the battery case cover by
pressing on the ridged lines and
sliding downward.
2.Discard the old battery pack. Don’t
put the old battery pack in a trash
compactor or a fire - it could burst.
Please recycle.
3.Place the new battery pack in its
housing with the metal contacts
facing down.
4.Replace the battery case cover by
sliding the cover upwards.
5.If the new battery pack is not
already charged, place the Hand-
set in the cradle of the Base Unit
to allow it to charge for 16 hours.
CAUTION: To Reduce the Risk of
Fire or Injury to Persons, Read and
Follow the Instructions
1.Use only VTech rechargeable bat-
tery pack, or equivalent.
2.Do not dispose of the battery pack
in a fire. The cell may explode.
IMPORTANT: Do not dispose of this
battery pack into household gar-
bage. For information on recycling
or proper disposal, consult your
local solid waste collection or
disposal organization.
3.Do not open or mutilate the battery
pack. Released electrolyte is cor-
rosive and may cause damage to
the eyes or skin. It may be toxic
if swallowed.
4.Exercise care in handling batteries
in order not to short the battery with
conducting materials such as rings,
bracelets, and keys. The battery
pack or conductor may overheat
and cause burns.
To purchase replacement battery
packs, call VTech at 1-800-595-
9511.
SPARE BATTERY CHARGER /
POWER BACKUP FUNCTION
WhenanoptionalSpareBatterypack
is installed in the Base Unit, the VT
1721 uses this battery to provide op-
erational backup in case of a power
failure. If you have a fully charged
battery pack in the Spare Battery
charger and there is a power outage,
you will still be able to place and re-
ceivecalls on the VT 1721 Handsetfor
up to 4 hours.
The Spare Battery pack can also be
used to replace a drained Handset
battery to ensure uninterrupted use.
Besureto put thedrainedbatterypack
in the Spare Battery charger.

11
The RBRCTM Seal The RBRC Seal on the (easily removable) nickel-
cadmium battery (contained in our product) indicates
that VTech Communications, INC.is voluntarily
participatinginanindustryprogramtocollectandrecycle
thesebatteriesattheendoftheirusefullives,whentaken
outofservicewithintheUnitedStatesandCanada.
TheRBRC programprovidesaconvenientalternative
toplacingusednickel-cadmiumbatteriesintothetrashor
municipalwaste,whichmaybeillegalinyourareas.
VTech’spaymentstoRBRC makeiteasyforyouto
dropoffthespentbatteryatlocalretailersparticipatingin
theRBRC programoratauthorizedVTechproductservicecenters.Pleasecall1-
800-8-BATTERYTM for information on Ni-Cd battery recycling and disposal bans/
restrictionsinyourarea.VTech’sinvolvementinthisprogramispartofitscommitment
toprotectingourenvironmentandconservingnaturalresources.
Removethenickel-cadmiumbatterypackbypressingonthelockknobandsliding
downward as mentioned on this manual.
RBRC is a registered trademark of Rechargeable Battery Recycling
Corporation.
INSTALLING THE BATTERY PACK

12
GETTING STARTED
SETTING UP AC POWER
ADAPTOR
Plug the AC power adaptor into an
electrical outlet and the DC connector
to the back of the Base Unit.
CAUTION: USE CLASS 2, 9V
DC POWER SUPPLY ONLY.
SETTING HANDSET RINGER
The Handset ringer is programmed
ON as the factory default setting. To
change ringer settings, see RINGER
TONE/ VOLUME.
TONE/PULSESELECTION
Your VT 1721 is preset for Tone
dialing. If you have rotary (pulse)
service, program the Handset
accordingly. See SET TONE/PULSE
for details.
CHARGETHEHANDSETBATTERY
PACKBEFOREUSE.
The battery pack recharges
automatically whenever the Handset
is in the Base Unit. The battery pack
must be charged for 16 hours before
using your phone for the first time.
CONNECTTHE TELEPHONE
LINE CORD
Plug one end of the telephone line
cord into the jack on the back of the
Base Unit, plug the other end of this
cord into the wall jack.
CHECK FOR A DIAL TONE
After the battery is charged, rotate
the Base Unit antenna to upright posi-
tion. NowpressPHONE ontheHand-
set. PHONE ON will appear on the
LCD, and you will hear a dial tone. If
not, see IN CASE OF DIFFICULTY.
Fill in the telephone number card on
the Base Unit.

13
GETTING STARTED
CAUTION:
1.Never install telephone wiring dur-
ing a lightning storm.
2.Never install telephone jacks in
wet locations unless the jack is
specifically designed for wet loca-
tions.
3.Never touch uninsulated telephone
wires or terminals unless the tel-
ephone line has been discon-
nected at the network interface.
4.Use caution when installing or
modifying telephone lines.

14
USING THE WALL MOUNT
ADAPTOR
1. Position the wall mount bracket
on the Base Unit.
Line up the tabs on the wall
mount adaptor with the holes on
the bottom of the Base Unit .
Snap the wall mount bracket firmly
in place.
2. Mount the Base Unit on the wall.
Position the Base Unit so the
mounting studs will fit into the
holes on the bottom of the Base
Unit. Position the power cord to
extend down the wall the phone
is to be mounted on. Slide the
Base Unit down on the mounting
studs until it locks into place.
3. Plug in the AC adaptor.
Plug the AC adaptor into an
electrical outlet, and the DC
connector to the back of the Base
Unit. If the Handset battery pack
has not been charged
previously,
place the Handset
face down in the Base Unit
cradle, and allow it to charge for
16 hours.
WALL MOUNTING
4. Connect the telephone line cord.
The telephone line cord has a
snap-in plug at each end. Insert
one of the plugs into the jack on
the bottom of the Base Unit.
Insert the other end of the plug
into the wall jack.
5. Plug the AC adaptor into an
electrical outlet and DC
connector to the back of the
Base Unit.

15
BASE and HANDSET LAYOUT

16
QUICK REFERENCE GUIDE
Here is a brief guide to the features
and functions of your VTech VT 1721
cordless telephone:
SET-UP
• Plug AC adaptor into a standard
electrical outlet
• Let Handset battery pack charge
for 16 hours before first use.
• Connect telephone line cord to
Base Unit and telephone jack.
SETTING TIME
With the Handset in the idle (off)
mode:
• Press MENU
• Use the / soft keys to scroll
until 5. Set Time is highlighted
• Press ENTER
• Enter the current hour. A single-
digit hour must be preceded by a
0.
•Next, enter the minute.
•Next, select the Hour Presenta-
tion (12-hour or 24-hour format)
by pressing the key directly below
the 12 or 24 icon in the handset
display.
•Press SAVE. The display will
confirm that the time has been
updated.
•The time setting will also auto-
matically be updated when Time/
Date information is received from
Caller ID.
MAKING CALLS
•Press PHONE. The Handset will
briefly display CONNECTING, then
PHONE ON. Listen for dial tone.
Using the keypad, dial the desired
number. To end your call, press
OFF, or return the handset to the
base unit. -OR-
•First, dial the desired number.
Then, press PHONE. After ac-
cessing dial tone, the phone
number will be dialed. To end
your call, press OFF, or return the
handset to the base unit.

17
and using calling cards.
•To switch from rotary to tone
dialing during a call, press the
*TONE key. When you end your
call by pressing OFF or returning
the handset to the base unit, the
phone will return to the rotary
(PULSE) mode.
VOLUMECONTROL
•The phone must be ON.
•Located on the side of the Hand-
set, press the VOLUME UP or
VOLUME DOWN keys to raise or
lower the earpiece volume. There
are 8volume levels.
RINGERCONTROL
With the Handset in the idle (off)
mode:
• Press MENU
• Using the / soft keys,
scroll until 3. Ringer Tone/Vol is
highlighted
• Press ENTER
ANSWERING CALLS
With Auto Answer OFF:
•Press any key other than OFF or
the Volume keys.
With Auto Answer ON:
•If the Handset is in the Base Unit
cradle, simply pick it up to answer
the call.
•If the Handset is out of the Base
Unit cradle, press any key other
than OFF or the Volume keys.
CALL TIMER
•While you are on a call, the VT
1721 will display the approximate
duration of your conversation.
The call timer appears in the
upper right corner of the display.
•When you complete your call by
pressing OFF, the Handset will
display:
•In this case, the duration was
approximately 1 minute and 37
seconds.
TEMPORARYTONE
•If your local telephone service
requires rotary (PULSE) dialing,
you can temporarily switch to
TONE dialing for such purposes
as accessing answering ma-
chines, bank-by-phone services,
QUICK REFERENCE GUIDE

18
• Use the RING soft key to select
the Ringer Type (there are 4ring
styles) and Vol soft key to select
the ringer volume (High, Low or
Off).
• Press SAVE to store your ringer
settings
• To exit programming mode at any
time, press OFF key .
HOLD
•Press the HOLD soft key to place
an active call on hold. Press the
TALK soft key or the PHONE key
to return to your call.
-OR-
•If an extension phone is activated
while the VT 1721 has a call on
HOLD, the VT 1721 will release
the call and turn itself OFF.
MUTE
•Press the MUTE soft key to dis-
able the Handset microphone
during an active call. Press the
TALK soft key to return to normal
2-way conversation.
REDIAL WITH THE HANDSET
ON (OFF HOOK)
•Press the RDL soft key to display
the last three telephone numbers
you dialed.
•Using the / soft keys,
select the number from the list
and then press DIAL soft key.
REDIAL WITH THE HANDSET
OFF (ON HOOK)
•Press RDL. The Handset will the
display last 3phone numbers
dialed.
QUICK REFERENCE GUIDE

19
•Use the / soft keys to
highlight the desired phone
number.
•Press PHONE. The VT 1721 will
access dial tone, and dial the
number.
PAGE/HANDSET LOCATOR
•Press PAGE on the Base Unit.
The Handset will simultaneously
display BASE PAGING and emit
several rings, which have a differ-
ent cadence than the ring signify-
ing an incoming call.
•To stop the page, either press
PAGE again on the Base Unit, or
press OFF on the Handset.
REVIEWING CALLER ID
RECORDS
NOTE: CallerIDandCallWaitingID
are subscription services, available
through most local telephone service
providers. These are optional serv-
ices; you are not required to subscribe
tothem. However, to receiveCaller ID
onyour VT 1721,subscriptionthrough
your local phone company is required.
With the Handset in the OFF (on
hook) mode:
• Press MENU
• Using the / soft keys
scroll until 1. Caller ID is
highlighted
• Press the ENTER soft key.
• Use the / soft keys to
scroll through the Caller ID
records. The VT 1721 will store
the last 30 Caller ID records to
come in.The latest one will be in
#01.
• Press OFF to exit Caller ID mode
MEMORY DIALING
With the Handset OFF (on hook):
QUICK REFERENCE GUIDE

20
QUICK REFERENCE GUIDE
• Press the MEM soft key.
• Enter Memory Location (01 – 25).
As soon as you enter the second
digit, the contents of the selected
Memory Location will be
displayed.
• Press PHONE key or the DIAL soft
key to dial the displayed phone
number.
With the Handset ON (off hook):
•Press PHONE. Listen for dial
tone.
•Press the MEM soft key.
•Enter Memory Location (01 – 25).
The displayed phone number will
be dialed.
•Press the PHONE or DIAL key.
FLASH
•You can use your VT 1721 with
services such as Call Waiting.
Simply press the PHONE key to
FLASH the line.