Audiovox DT921C User Manual

COM1"IUNICATIONS CORP.

CORDLESS TELEPHONE

.."900MHz DIGITAL
.CALLER ID

IMPORTANT: REVIEW INSTRUCTIONS BEFORE OPERATION

Congratulations! You have purchased
one of the most sophisticated cordless
telephones on the market! The
AUDIOVOX DT 921c has been de-
signed to offer a new standard in

cordless telephone technology.

The AUDIOVOX DT 921c also pro-
vides a one-way Page/Find. Pressing
the base PAGE key will cause the

handset to ring in a manner which
distinguishes it from normal incoming
ringing. This can be used to alert the
handset user, or to simply locate the

Unlike most other cordless phones, the
AUDIOVOX DT 921c digitizes:'your
voice using advanced ADPCM digital
voice coding to provide noise and
distortion free performance. In most
conditions you will not be able to tell
you are using a cordless phone. Gone
are the annoyances of static, interfer-
ence and having to listen to other
people's conversations on your cord-

less phone.

handset in the event that it is mis-
placed.

The AUDIOVOX DT 921 c uses special

memory in both the base and handset
which is not susceptible to power
feilures. This provides permanent
storage of all memory dial numbers,
CID information as well as the base
and handset security codes.

When an optional battery pack is

The AUDIOVOX DT 921c scrambles
your voice before it transmits it. This

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allows you the security of knowing that
no one can tune in and eavesdrop on

your conversations.

installed in the base unit, the
AUDIOVOX DT 921c uses this battery
pack to provide operational backup in

case of power failure. In this way you

have access to all normal phone

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functions during a total power outage.

The AUDIOV9X DT 921c decodes and

displays name and/or number Caller ID
(CID) information where available and

when subscribed to. The alpha-

numeric display can show both the .

Calls can still be placed and received

without interruption. More than 5 hours

backup will be possible with a fully

charged battery pack in the base unit.

name and number of the calling party.
Up to 24 name characters or 11 phone
number digits can be displayed on the
LCD.

With the AUDIOVOX DT 921c, the user
can easily answer a call by pressing

any key other than the OFF, MUTE or

VOLUME 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.

DT '21

The AUDIOVOX DT 921c informs you

that another extension is currently iii- -
use on the same phone line. The

phone will also alert you when you are
Out of Range, even when you're not
using the phone!

5/15/98.11:13AM

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SPECIAL FEATURES
.900 MHz Operation.
.Fully Digital Link between Handset

and Base with ADPCM voice cod-
ing.

.Digitally-Scrambled Voice Commu-

nication.
.Name I Number CID display. .
.2 row by 12 character 5x7. dot

matrix alpha-numeric LCD.
.so CID memory locations.
.Backlit lCo:on the handset.
.Backlit handset keypad.
.20 location Programmable Memory

for 20 Digit Phone Number.
.10 Channel Operation with auto

channel selection.
.Out-of-Range indication while the

handset is in use or in standby

mode.
.Removable handset battery pack.
.Spare battery charger in the base

unit.
.Complete battery back-up in case

of power failure (with optional spare

battery pac~ installed in base).
.E:"~~e;Lip..Handset charging.

.:.::;..:;;.,-.,...".,:,..:..., ,."-.~.,

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.Easy answer -When the phone

rings, simply press any key other
than OFF, MUTE. or the Volume
Keys on the handset to answer.

.Auto hang up when returning the

handset to the base cradle.
.Extension in use indicator.
.24 Bit Digital Security Code.
.DTMF and Pulse Dialing.
.Low Battery Detect and Warning

indicator.
.Up to 7 hours continuous talk time

or 7 days standby time.
.Volume Adjust on Handset.
.REDIAL, HOLD, PAGE and MUTE-
.Hearing-Aid Compatible Receiver.
.Detachable power supply.

.Non-volatile storage of security

code and memory dial records.

.Programmable Ringer Types.

This manual is designed to make you
familiar with the AUOIOVOX OT 921 c.
We strongly recommend you read the
manual before using your phone.

.

DT 921

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This equipment complies with Parts 15
and 68 of the Federal Communications
Commission (FCC) rules for the United
States. It also complies with regula-
tions RSS210 and CS-O3 of Industry
and Science Canada. Operation is
subject to the following two conditions:
(1) this device may not cause inte.rler-
ence, and (2) this device must accept
any interference, including interfer-
ence that may cause undesired opera-
tion of the device.

A label is located on the underside of
the base unit containing either the FCC
registration number'and Ringer Equiva-
lence Number (REN) .You must, upon
request, provide this information to
your local telephone company.

This equipment is compatible with
inductively coupled hearing aids.

Should you experience trouble with this
telephone equipment. please contact:

AUDIOVOX COMMUNICATIONS
SERVICE DEPT. at (800) 229-1235.

For repair/warranty information. 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 compliances could
void the user's authority to operate the

equipment.

The equipment has been tested and
found to comply with part 15 of the FCC
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
frequency energy and, if not installed
and used in accordance with the

instructions, may cause harmful inter-
ference to radio communications.
However, there is no guarantee that
interference will not occur in a particu-
lar installation. If this equipment does
cause harmful interference to radio or
television reception, which can be
determined by turning the equipment
off and on, the user is encouraged to
try and correct the interference by one
or more 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 con-
nected.

-Consult the dealer or an experi-
enced radio!TV technician for help.-

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OT 921

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FCC Part 68
The FCC requires that you connect
your cordless telephone to the nation-
wide telephone network through a
modular telephone jack (USOC RJ 11 C,

RJ11W).

Your telephone company may disc9n-
tinue your service if your equipment
causes harm to the telephone network.
They will notify you in advance of
disconnection, if possible. During
notification, you will be informed 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-
dures that could affect the operation of
your equipment. If so, you will be given
advance notice of the change to give
you an opportunity to maintain uninter-

rupted service.

The base unit contains no user serv-
iceable parts. The handset contains
a user replaceable battery pack.

If it is determined that your telephone

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
can only be made by the manufacturer
or its authorized agents or by others
who may be authorized by the FCC.

For repair procedures, follow the in-
structions outlined under the
AUDIOVOX Limited Warranty.

This equipment may not be used on
coin service provided by the phone
company or Party lines.

The REN is useful in determining the
number of devices you may connect
to your telephone line and still enable
the devices to ring when you receive
a call. The general rule is that the REN
value should not exceed 5.0A total;
however, contact your local telephone
company for the specific number in
your area.

IC (Industry Canada)
This telephone is registered for use in
Canada.

Notice:The REN assigned to this

device denotes the number of
devices you may connect to
the telephone loop which is
used by the device to prevent
overloading The termination
on a loop may consist of any
combination of devices
subjected only to the
requirement that the sum of the
REN does not exceed fIVe (5.0)

Notice:The Industry Canada label

identifies certified equipment. --

This certification 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.

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Before installing this equipment. users
should ensure that it is permissible to
be connected to the facilities of the
local telecommunications company.
The equipment must also be installed
using an acceptable method of con-
nection. The customer should be
aware that compliance with the above
conditions may not prevent degri!lda-
tion of services in some situations.

Repairs to certified equipment should
be made by an authorized Canadian
maintenance facility designated by the
supplier. Any repairs or alterations
made by the user to this equipment,
or equipment malfunctions, may give

the telecommunications company
cause to request the user to disconnect
the equipment.

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Caution: Users should not attempt to

make such connections
themselves, but should con-
tact the appropriate electri-
cal inspection authority, or
electrician, as appropriate.

YourAUDIOVOX DT921c is designed
to operate at the maximum power

allowed by the FCC. This means your
handset and base unit can communi-

cate only over a certain distance -
which will depend on the location of the

base unit and handset, weather, and
the construction and layout of your
home or office.

Users should ensure for their own

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protection that the electrical ground
connections of the power utility, tel-

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ephone lines and internal metallic
water pipe s~stem, if present, are
connected together. This precaution
may be particularly important in rural
areas.

CT 921

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When using your telephone equipment,
basic safety precautions should always
be followed to reduce the risk of fire,
electric shock and injury to persons,
including the following:

1. Read and understand all instruc-
tions.

2. Follow all wamings and instructions
marked on the product.

3. Unplug this product from the wall
outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners.
Use a damp cloth for cleaning.

4. Do not use this product near water
(tor example, near a bath tub,
kitchen sink, or swimming pool).

5. Do not place this product on an

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unstable cart, stand, or table. The
product may fall, causing serious

damage to the product.

6. Slots and openings in the cabinet

and the back or bottom are pro-
vided for ventilation. To protect it .
from overheating, these openings
must not be blocked by placing the
product on the bed, sofa, rug, or

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
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 a AUDIOVOX author-
ized service facility. Opening or

removing cabinet parts other than

specified access doors may ex-
pose you to dangerous voltages or
other risks. Incorrect reassem-

bling can cause electric shock
when the appliance is subsequently

used. --

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other similar surface. This product
should never be placed near or
over a radiator or heat register.

This product should not be placed

11. Do not overload wall outlets and

extension cords as this can result
in the risk of fire or electric shock.

in a built-in installation where proper
ventilation is not provided.

DT '21

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5/1~8.11:13AM

12.Unplug this product from the wall
outlet and refer servicing to a
AUDIOVOX authorized service fa­cility under the following condi­tions:

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.

A. When the power supply cord or

plug is damaged or frayed,.

B. If liquid has been spilled into

the product.

c. If the product has been exposed

to rain or water.

D. If the product does not operate

normally by following the oper­ating instructions. Adjust only
those controls that are covered
by the operating instructions,
because improper adjustment

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of other controls may result in
damage and will often require
extensive work by a VTech
authorized technician to restore
the product to normal operation.

E. If the product has been dropped

and the cabinet has been dam­aged.

F. If the product exhibits a distinct

change in performance.

14.Do not use the telephone to report
a gas leak in the vicinity of the
leak.

AUDIOVOX COMMUNICATIONS
SERVICE DEPT. at [phone].

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DT921c cordless telephone is pow-
ered by a rechargeable battery pack.
It charges automatically whenever the
handset is in the base. You should
charge the battery pack for 16 hours
when you first receive your phone.
You'll know the battery pack needs
charging when:
.The phone emits a warning tone

when you press the TALK key.

The low battery message is

displayed: "

The handset seems completely

dead, the LCD js clear and the
handset does not beep when you
press the keys.

To Charge The Battery Pack
To charge the battery pack, place the

handset in the base unit. The CHARGE
indicator will light to show the handset
is seated properly and the battery pack
is charging. It is recommended that
the battery pack be charged for at least

16 hours initially and 8 hours for
maintenance charging. You can use

your telephone before that with

diminished capacity , but it is best to
chargethebatterypackfully.ltwilltake

several recharge cycles to maximize

the charge capacity of your battery

pack. The maximum battery fife
between charges- is 7 hours of
continuous talk time or 7 days of stand

by.

Altematively, if you have purchased a
spare battery pack and it has been
charging in the base unit, simply

exchange the drained handset battery
pack with the fully charged replace-
ment battery pack frpm the base

charger. Place the drained handset

battery pack into the base charger to
recharge.

The base spare battery charger does

NOT charge a battery pack as quickly
as the handset battery charger. A full
charge requires 24 hours when using

the s are batte char er.

e a ery p an
many times, but if you get a low-battery
signal even after 16 hours of charging
in the base cradle (or 24 hours in the
base spare battery charger), the bat-
tery pack(s) should be replaced.

To purchase replacement battery
packs, call AUDIOVOX Communica-
tions at (800) 229-1235

Your Nicad battery pack recharges -
whenever the Handset is returned to

the Base Unit cradle. You may return
the Handset to its cradle whenever
you're not using the phone.

However, to maximize the life of your

battery pack, do not return your

DT921c Handset to the Base Unit

cradle for recharging until the LOW

BAn LED begins to flash.

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Follow the steps below:

1. Remove the battery case cover by
pressing on the ridged lines and

sliding downward.

PRESS and SLIDE
DOWNWARD

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SLIDE IN THE
BATTERY COVER

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2. Discard the old battery pack. Don't
put the old battery pack in a trash
col1'1p,actor or a fire -it could burst.

3. Place the new battery pack in its

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housing with the metal contacts

facing down.

I PLACE THE NEW

BATTERY PACK
INTO THE

P- BATTERY

I COMPARTMENT

PLEASE NOTE THE
CORRECT POSITION

I OF THE BATTERY

J PACK WHEN

1 CHANGING BATTERY

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.

1. Use only AUDIOVOX rechargeable
battery pack BT911.

2. Do not dispose of the battery in a
.fire. The cell may explode.

IMPORTANT: Do not dispose of this
battery into household garbage. For ---

information on recycling or proper
disposal, consult your local solid

waste collection or disposal

organization.

3. Do not open or mutilate the battery.

Released electrolyte is corrosive
and may cause damage to the
eyes or skin. It may be toxic if
swallowed.

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1998/6123. AM 10:32

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4. Exercise care in handling batteries
in order not to short the battery

with conducting materials such as

rings, bracelets. and keys. The

battery or conductor may overheat
and cause bums.

SPARE BATTERY CHARGER

The DT921 c has a bui/t-in spare

Battery Charger, which is located in the

cradle of the Base Unit.

Place a battery pack in the Spare
Battery charger. Make sure the metal

charging contacts on the underside of
the battery pack are aligned with the

charging contacts in the Spare Battery
charger.

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=-

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Power Backup

When a Spare Battery pack is installed

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DT921c uses this battery pack to

in the Base Unit, the AUDIOVOX

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provide operational backup in case of

Installation
Remove the Spare Battery charger

cover by pressing the release tab and
lifting up.

a power failure. If you have a fully
charged battery pack in the Spare

Battery pack charger and there is a
power outage; you will still be able to

.place and receive calls for up to five

hours.

Replacing a Drained Handset bat-

tery
The Spare battery pack can also be

used to replace a drained Handset
battery pack to ensure uninterrupted
use. Be sure to put the drained battery
pack in the Spare Battery charger tor

recharging.

Please note that the Spare Battery
compartment charges at a slower rate
than a battery pack charging in the
Handset. It takes 24 hours to fully
charge a battery pack in the Spare

Battery charger.

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Setting Up Your AUDIOVOX DT921 c
Choose an area near an electrical
outlet and a telephone wall jack.

AC Power Adaptor

Plug the AC power adaptor into an
electrical outlet and the DC connector
to the back of the base unit.

Charge the handset battery pack
before use. The battery pack recharges
automatically whenever the handset is
in the base unit. The batteries must
be charged for 16 hours before using
your phone for the first time.

+

Ha~dset Ringer
The handset ringer is programmed ON

as the factory default setting. Refer to

PROGRAMMING THE RINGER on

page 21 for more information.

Setting the Tone/pulse Switch

The TONE/PULSE switch is located on

the bottom of the base unit and is

factory set to TONE. If you have touch

tone service, do not change the switch

setting. If you have rotary (Pulse)

service, set the switch to PULSE.

DT '21

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CAUTION:

1. Never install telephone wiring
during a lightning storm.

2. Never install telephone jacks in
wet locations unless the jack is
specifically designed for wet
locations.

3. Never touch uninsulated telephone
wires or terminals unless the
telephone line has been

disconnected at the network
interface.

4. Use caution when installing or

modifying telephone lines.

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US1NG THE WALL MOUNT

ADAPTOR

1. Position the wall mount bracket
on the base.
line up the tabs on the waIl mount
adaptor with the holes on the
bottom of the base (Figure 1 ).
Snap the waIl mount bracket firmly
in place.

2. Mount the base on the wall.
Position the base so the mounting

studs will fit into the holes on the
bottom of the base. Position the
power cord to extend down the wall
the phone is to be mounted on.
Slide the base down on the
mounting studs until it locks into

place.

3. 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. Insert the other
end of the plug into the wall jack.

Figure 1

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4. Plug the AC adaptor into an
electrical outlet and the DC

connector into the power jack .;
located on the back of the Base

Unit .

DT '21

Figure 2

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5/15/98. 11:13 AM

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LCO Oisplay Messages

-LI

1-1..1

the PHONE ON indicator is displayed
when the phone is in use.

WiN -iiii

..ala 8S1111

is displayed when the handset
microphone has been muted.

I~: I t.~13Ef;:: I:IFF

::LEI::TE[I

is displayed when the handset ringer
has been programmed off.

-@-

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I

shows the handset volume setting.

is displayed when the handset has lost
communication with the base unit and

is attempting to reestablish a link by
scanning all channels.

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is displayed when the unit is in a low-
battery condition. The handset typically

operates for at least 5 minutes after the .
low battery indication first appears.

is displayed if communication with the
base is reestablished.

::.::TEt.~S I 1:lt.~

l!H I-ISE

is displayed while in OFF mode, if
another phone is currently using the

same line.

is-displayed when the handset is on
hold.

DT '21

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5/15/98. 11:13 AM

15

ANTENNA

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VOLUME UP & OOWN \

LCO OISPLAY

HOLD KEY
OFF KEY
TALK KEY

DIAUNG KEYS (0-9)
TONE {Temporary Tone)

MEMORY BATTERY
REDIAL COMPARTMENT

CALLER ID
MUTE

CLEAR/DELETE
PROGRAM

MEMORY 2
MEMORY1

THE HANDSET FEATURES

16

.

DT '21

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5/15/98. 11:13 AM

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TONE/PULSE
SELECTOR

13 O\.t 1<. v I~

AC POWER JACK

PHONE CORD JACK

+ -+

DT 921

THE BASE UNIT FEATURES

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5/15/98. 11:13 AM

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SET-UP
.Plug AC adaptor into a standard

electrical outlet and Base Unit

.Set Dial Mode switch to PULSE or

TONE. The unit is factory set to

TO M UTE A CAL,L i, ' ,

.Press MUTE to disable the

handset microphone.

Press MUTE again to return to
normal two way conuersation.

TONE.

.Let the handset battery pack charge

for 16 hours before first use.

.Connect telephone line cord to base

unit and telephone jack.

.to PAGE THE HANDSET ~ ..,,:,~:;

.To page from the base, press

PAGE.

.To cancel the PAGE either press

PAGE again on the base or press

.c .'

OFF on the handset.

MAKING CALLS

c .-., .Press the TALK key. When the

"PHONE ON" indicator is displayed
and you hear a dial tone, dial the

SIORING MEMORY (SPEED) DIA.L.
NUMBERS: .;- ~. ',' .\"

.The phone should be OFF:

number.

OR

Enter the number to be dialed on

I

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the LCD and then press the TALK
key.

ANSWERING CALLS .
.To answer a call, press any key

other than' OFF, MUTE. or the
Volume Keys. The handset will
NOT auto-answer when lifted off
the base cradle.

.Enter the number you wish to store

on the LCD up to a maximum of 20
digits.

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HANGIN~ UP
.Press OFF or place the handset

in the cradle to hang up a call.

TO PLACE A CALL ON HOLD
.Press HOLD on the handset

to place an active call on hold.
Press HOLD again to return to
the call.

18

.Press PROG .The LCD will

display "PROGRAM LOCATION--"

.Enter a two digit memory location

(01 ..20), the unit will store the

number, emit a happy tone to
confirm successful programming
and exit program mode.

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Press the TAL,K key.

Press MEM .

To view the time and date of the
call press and hold the 7 (!) key.
The time and date will be shown
along with the phone number. You
will see something like:

As long as the key is held down.

.To v jew other calls. scroll

backwards and forwards by using
the 6 (*) and Q (*) keys.

To view additional digits not shown
on the display, press the ~ (9) key

Enter the memory location of the

.To exit press OFF .

phone number you wish to dial
(01...20). The number will be dis-

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played on the LCD and will be
dialed.

'CJ

.o vle'N In orma Ion s ore In

memory, press CJD on the
handset

.4,~~~~A[;,;.

.Press the TALK key, then REDIAL

to automatically redial out the last
number you dialed.

Or

.Press REDIAL so that the

~

number is shown on the display
and then press the TAI~K key.

.Press HOLD to put a call on hold.

.To return to the call, press HOLD

key again

The display wilr show the most
recent call received.

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1998/6/22. PM 07:20

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:MAKiNG'!CA

'.'

You can ma
handset whether you are at the base
or away from it.

~¥~~~~

!~~:sttk;., ~~., t-';;', ~~'6.~

You can use your AUDIOVOX DT921 c
cordless phone with services such as
Call Waiting. Simply press the T ALK
key to FLASH the line.

NOTE: There are two different ways
to dial a number:

To REDIAL the last number you

Press the TALK key and wait for
dial tone. Then dial the number you
want.

dialed. press the T ALK key. then press

REDIAL. The phone will automatically
dial the number. The number will be
shown on the display.

Or

2. Enter the number onto the display
first. then press'the TALK key.

This will dial the number that is

~~~::

The display can be cleared by pressing
and holding the CLR/DEL key down
until the display clears.

displayed on the LCD after 2
seconds. See "ADVANCED

DIALING" on Page 22

.ress urlng conversa Ion

to disable the handset microphone.

If you make a mistake when dialing,

~

press OFF to hang up, then press
the TALK key to get the dial tone

again.

.Press MUTE again to return to

normal operation.

!BINGE~MUTE

-~ .Press MUTE during incomIng

~

~

;.P!~~9I!.t:! -""

To end a call, either place the handset

back in the base, or press OFF on
the handset.

fJ:NSWERI

When the an se nngs, press any
key other than OFF, MUTE or the
VOLUME keys to answer your call.

~~OW~QES'"~;

The volume controls for the handset
are located on the side of the unit.
Press the A (up) or V (down) keys
to increase or decrease the volume.

Holding either key down will
continuously change the volume
setting. The earpiece volume level

indicator on the LCD will change

ringing to disable the ringer for the
duration of the call.

--­,HP(

Press HOLD to place an active call

on hold.

The LCD will display CALL ON
HOLD.
Press HOLD again to return to the
call.

~~GE/HANPs~:[ecAToRi:~ .'

To page from the Base Unit, press

PAGE. .

.The LCD will d"lSplay BASE PAGING

HANDSET.
To cancel the page, either press

PAGE again on the Base Unit, or

press OFF on the Handset.

accordingly. There are four volume
levels.

20

d192I.p6S

~

20

.~~-

1998/6/22. PM 07:22

rF

~

+

CALL WAITING
While you are on a call, you will hear
an alert signal, warning that a second
caller is trying to reach you. CALL
WAITING is a subscription service,
available from most local telephone
service providers. Contact your provider
for details.

If you subscribe to this service linked
with CALLER ID (CID), the name and/
or phone number of the second caller
can be displayed on the LCD
immediately after hearing the CALL
WA For more details, see

JP1,CAl.",",?, I. E'";i:, ID "~~ &.; tt. '0..',"..;;.",

." -.-c.."(" .:" .

Switching calls using FLASH
.To switch over to the new call,

press the TALK key; the first call is
put on hold.

.To switch back to the first call,

press the TALK key again.

..

First, dial the call normally. Then
activate the Temporary Tone feature
by pressing TONE (the. key). You can
then press the numbers or symbols you
need, and your phone will send the

proper signals.

To end the call, press OFF or place
the handset back in the base. The
phone will automatically go back to

rotary (di~~"'ijt;jr~)service.

+

..~ -

Programming The Ring~rj~i .,".

The handset ringer is capable of four
different types of ringer tones. The
following sections detail how to select

different ringer types and how to turn
off the handset ringer.

Temporary Tone

If you have rota%J.~£!1~) tel-

ephone service (T9:f!f)j!..Qt.$E'switch
is set to PULSE), this feature allows
you to temporarily switch to TONE
dialing for such purposes as remote
access to answering machines, bank-
by-phone services, use of calling cards

and other special services-

DT 921

21

-@-

I

I

5/1SJ98.11:13AM

21

Changing Ringer Types

To program, the handset must be
OFF.

To select a different ringer type do
the following:

,.- ../ II -

,~ ! I

Ili ;~I : TURNING OFFTHE

'~.'~)e

..~~;.-:.-!

: ..0 ;(.::;J E} ! PRESS e
; i~.~E,! I PRE~s0

, e,

l'ige0i, PRESSe

I! i e (5) 8. !
li! ge'Stii PRESSe

i e6>

I

~ ' ..1

; ---~I

\ .., ~ /

j: RINGER

-@-

Checking The Ringer Type ~ ,

To test the present ringer type; do the

.following:

..

Press: PROG
Press: #
Press: 1 for ringer type 1

I

2 for ringer type 2
3 for ringer type 3

~

4 for ringer type 4

The handset LCD will show the ringer
type selected, for example

Press PROG or OFF to exit.

CLR/DEL Key F~nctlon.::j,:l ~:i~; -
The CLEAR and DELETE functions
can be accessed separately depending

Press PROG or OFF to exit.

on how long the key is held down. For

example, to clear the last digit entered

Turning Off The Ringer
To turn off the ringer do the following:

on the display, press the CLR/DEL
key for less than 1 second. Press and
hold the CLR/DEL key for more than

1 second to completely clear the LCD.

The delete function is also used to
delete CID and memory dial records,
see DELETING STORED NUMBERS,
and DELETING NUMBERS.~~..:-".~~

22

DT 921 22

5115/98, 11:13 AM

~

~

~

--

Advanced Dialing
There are two different ways to dial a
number:

1. Press the TALK key and wait for
a dial tone. Then dial the number

you want either manually, using

MEMORY (MEM) dialing, CID
dialing or REDIAL.

2. Enter the number you wish to dial
on the display first. Then press the
TALK key. This will dial the
number which is displayed on the

LCD after 2 seconds.

I

~

Press and hold CLR/DEL until
the display is cleared, then dial

normally.

or

OFF and start over.Press

+

DT 921

23

23

-<§!J-

5/15/98.11:13 AM

w-

Storing Memory (Spe~d) Dial
numbers; ,

To program a speed dial location, do
the following:

+

With the phone OFF, enter the
telephone number you wish to
store. (20 Digits Maximum).

Enter program mode by pressing

PROG. The display will show the
following:

Enter th~ memory location (01..20)
you V:lish to store the number in.

As soon as the second memory

location digit is entered, the unit
~ill emit a happy tone (a short
series of beeps) to confirm
successful programming and exit

program mo,de.

Unsuccessful programming can result

from not correctly completing the
programming sequence. For example,

if after entering a number on the LCO
and entering program mode, the OFF
key were pressed instead of entering
a valid memory location, the
"PROGRAMMING INCOMPLETE"

message would appear. If this
message appears, simply repeat the

programming sequence.

+

If programming is unsuccessful the unit

will display:

DT '21

24

24

5/15/98, 11:13AM

~

+

.,.

;Dla Jlii g~ go ri1i. Me mo r1Ili~

~ ~~=--: ;:;;

.Press TALK to get a line.

Press MEM .you're prompted to

enter a speed dial location number:

.Enter a 2 digit location number

(01-20)

.The number stored in that location

will be displayed and immediately

dialed. .

Or

Beginning from the OFF mode,

pres~ MEM followed by a 2 digit

location number (01-20).
Press MEM again to exit memory
dial mode and leave the number
on the display.
Note that if digits were on the
display prior to entering memory
dial mode, 'the contents of the
speed dial memory will be ap­pended to those digits. For exam­ple. if 1503 was on the LCD and
the contents of the memory loca­tion is 6438981. then the display
would show the following upon

exiting memory dial mode:

renin-

9!iff&:st~

~fo~cha~~f~

simply enter the new number on the
display and store it in the memory
location you wish to change.

~~~iN"~~!Bm

.Press MEM .The display will

change to NSPEED DIAL

LOCATION- -"

.Enter memory location number

(01-20).

.Press CLR/DEL key. The display

.will change to "LOCATION XX

DELETEDN,

~

I i II'\,

."\ --

Press TALK. the number on the

dt92I.p65

~

1- -

display will be dialed after a 2
second pause. .

2$

.Press OFF to exit.

25

;,.

-=.
~

199&/6122. p~ 07:2S

rF

--

Storing Special Codes

To insert a pause in a phone number,

press HOLD at the appropriate point
when entering the number on the LCD.
This inserts a 2 second pause. A

.p " appears in the display to show
the pause. For longer pauses, press

HOLD two or more times. Each press
makes the pause 2 seconds longer'and
is treated as a stored digit.

If your phone is connected to a PBX,

you can store the PBX access

number and a pause before the
phone number. For example, to ~tore
9-P AUS E-555-1234. in memory location
08, do the following:

1. Press 9

2. Press HOLD

3. Dial 5551234

4. Press PROG

4-

I

5. Enter 08

+

DT 921

26

26

SI 1 S/98,11:13AM

+

' -'!~~~

;~~d;

,\."

~Jl"~1';

CID -CALLER ID
Your AUDIOVOX DT921c cordless
phone is capable of displaying the
name and/or phone number of the
person calling, before you answer the
phone. Subscription to Caller ID service

through your local phone company is

required to utilize this feature.

If you subscribe to alphanumeric (name
& number) Caller ID service, the calling
party's name and phone number (when
available) will be displayed on the LCD
screen while the phone is ringing.

If you subscribe to 'numeric (number
only) Caller ID service, the calling
party's phone number (when available)

will be 9isplayed on the LCD screen

I

.

w~i!~ t~~. ~h~~.e is. ~nging.,
c:...:..'.,c;.:;."o :',.;.;..,.:

CAlL.WAITING CALLER1D"(TYPE It
CID)

Your AUDIOVOX DT921 c cordless
phone is also capable of displaying
Caller ID information in connection with

Receiving and Storing Calls­This unit receives and displays'all CID
information, the caller's telephone
number,. the callers name and the
exact date and time of the call.

The phone sequentially numbers these
call records and retains them in the
unit's CID memory for later review.

These call record numbers are

displayed as the first two digits in the
display. The unit can store up to 50
numbers in its memory .

Once the CID memory is full, any new
call forces a deletion of the oldest call
record.

+

a Call Waiting signal. If you are on a
call, and receive a Call Waiting alert
signal, the LCD will display the name
and/or number (when available) of the
party trying to reach you. As above,
subscription to Call Waiting ID service
through your local phone company is
required in order to utilize this feature.

A WORD ABOUT CALLER ID -CID
Due to regional incompatibilities, Caller
ID information may not be available for
every call you receive. In addition, the

calling party may intentionally block

their name & phone number from being

sent. -

For example, when you press and hold

the 7 Skey to view the phone number,
you would see the following: .

DT 921

27

27

SlIS198. 11:13 AM

-+

However, when you dial directly from
CID memory, only the last 7 digits of
the received telephone number will be
used. Consequently, you would
actually dial this:

of the caller is unavailable, or if the
caller is outside the CID service area,
the message UNAVAI~BLE is dis-
played on the LCD.

~:'e AUDIOVOX DT921 was designed
to accommodate this situation. If you

need to temporarily add a long distance
prefix and lor area code (such as 1503)
before the CID num~er, do the follow-

ing: .
.Beginning from the standby mode,

key in the necessary digits. your

~f'

If the caller has exercised the option
to block his or her number from being
sent, then the display will show

PRIVATE.

displ~y will look like this:

~ -

I -~I ."\ r ~

~

~

~.

Then, to temporarily add the last 7

digits only from a CJD memory,
press CID .

.Using the 6 (;) and Q (#) keys.

scroll through the received calls to
locate the number you wish to dial.

.Once you have located the number

you wish to dial, simply press
TALK key. The last seven digits
will be added to the numbers

already in the LCD, and the whole
number shown below will be
automatically dialed.

d192I.p6S

If an error is detected, then the CID
information is incomplete and will
not be displayed. "TRANSMISSION
ERROR" will be displayed on the LCD
screen.

The occasional appearance of

"TRANSMISSION ERROR" on your
display does not indicate a problem

with your unit or your telephone line.

However. if this appears frequently,

you may want to notify your telephone
company.

28

28 1998/6122. PM 07:27

~

rF

~

+

Reviewing Numbers
Calls stored in memory can be
reviewed by pressing CID .The
display will show the number of the
most recent (CALL #01 ). The top line
of the display is used to indicate the
memory location number and the
bottom line of the display shows the

name, see below: .:

There may be additional characters

in the name which can not be

shown on the current display. Press

the ~ ( 9 ) key. This will overwrite
the CIO memory location on the top line
to show up to a maximum of 15 alpha
characters for the duration of the
key press. The first 12 alpha characters

will be on the top line with up to 3

additional characters on the second
line.

HE:I::

,-: ,-,1-1

1 II H-L.II I

--I r I1T

To find out the corresponding phone
number as well as the date and
time of the call, press and hold
the 7 (1) key. The date and time will
be shown. Releasing the key will again
show the caller's name.

Pressing the ( 0 (*) key) displays the
next lower in sequence call record.
Likewise, pressing the ( Q (#) key)
displays the next higher in sequence)
call record. The higher the call number,
the older the call.

To save you time in reviewing call

records, you can "wrap-around" the
call history log. For example, if you
press the 0 (*) key enough to scroll

back to the first record, pressing it

again will force the display to go to the
very end of the call record.

+

DT 921

LT[I

29

29

~

5/15/98, 11:13 AM

~

w-

-($)-

DELETING NUMBERS
Pressing the cCRJbEL button deletes

the CID number displayed.

.While the phone is in CID mode,

press the CLR/DEL key once to

.Press and hold the CLR/lIti --

for more than 2 seconds ~I =
the entire contents of CIQ .~,.;-

The display will show the II)~~

for a final confirmation, bw;::--
entire CID memory is er~.,

".~--

-

-- -

,-""

- --

delete the current call and the
display will show:

..Pressing any key Otl".. -

..:...:0..:.:.""'.0..0:..,-.~;"

The older CIO" I'ecords °willobe
moved forward ~y one location .

CLR/pEL wilJ canc.el the v~ :;

',.;.,

-:PrGssln.g- CLR/DEL::..Wij'":~ ."' :.,.~ ",--":.,, -.': ~.;,.;.:;:;
the operation and the di:;,.;r--:r

then show:

..

ICIELET I t.~13

RLL I::RLLS

I

The message will remai: ~
display for 2 seconds.

00,:.:~~~

--.

30

CT 921

30

I

5/15/98, 11:13 AM

~

~

+

NOISE OR\INTEf::!Fgf3~NCE-
Your AUDIOVOX DT921c cordless
telephone has auto-channel scan
circuitry which will detect excess noise

and change the channel of the phone
to reduce it. This is done automatically.

Since the AUDIOVOX DT921 c is a fully

digital phone, it does not suffer from

noise associated with regular cordless

phones. At times you may experience

occasional "drop outs", especially at

the extreme edges of the phone's

range. Simply move closer to the base

unit and this will disappear.

AUTOM,ATIC SECUR.!TY CODING

Your AUDIOVOX DT921c phone is
factory set with 16.8 million possible
security codes. This unique security
code allows your handset and base to

recognize each other, and minimizes
the possibility of another cordless

phone using your telephone line.

OUT OF RANGE INDICATION

If the handset is moved to a point where
the base and handset can no longer
communicate, the handset will make a
quick series of beeps to signal Out of

Range.

If the handset is active when taken
out-of-range, it will beep twice a
second and enter standby mode after
25 seconds if the link is not
reestablished. If the handset is
brought back within range, it will
automatically re-Iink.

OUT OF RANGE WHEN. PHQNEIS
ON :.;. '~ .'I

If you are presently engaged in a phone

conversation move closer to the base.

If the base unit does not communicate
with the handset within 25 seconds of
losing contact, it will automatically

hang up.

OUT OF RANGE \YHE~ PHq.NE IS

OFF ., y " -,.1

.; ; "., ," -c.:;~~

If the phone is OFF, the handset and
base still monitor each other to make
sure that they can communicate. If the
handset is moved out of range, the
handset will make a series of beeps,
and will then display "CHANNEL
SERACHING" on t-he LCD. At 15
second intervals the handset will scan
all channels in an attempt to reestablish
communication with the base. This
process does not require user
intervention; the handset will re-Iink
with the base automatically once it is
brought back within range. The unit

will then be able to receive and place ---
calls.

."

.

When the base unit is unplugged from
the power supply, the handset will give
the "Out of Range" warning beep. Plug
the base in again and this will stop.

-@-
I

For out-of-range in standby mode, the
handset will beep once and then at 1.5

second intervals, will display

"CHANNEL SERACHING" on the
LCD, and scan all channels in an

attempt to re-Iink with the base.

CT 921

31

31

I

~

S/1S/98. 11:13 AM

w-

TAKING CARE OF YOUR TEL-

EPHONE~
Your AUDIOVOX DT921c cordless
telephone contains sophisticated
electronic parts, so it must be treated
with care.

Cleaning your telephone: i ". .

Your telephone has a durable plastic
casing that ShoUld retain its luster for
many years. Clean it only with a soft

Cloth slightly dampened with water or
a mild soap. 00 not use excess water
or cleaning solvents of any kind.

.

Avoid rough treatment
Place the handset down gently. Save
the original packing materials to pro-
tect your telephone if you ever need

to ship it. .

Avoid water
Your telephone can be damaged it it
gets wet. 00 not .use the handset
outdoors in the rain; or handle it with
wet hands. 00 not install your base
unit near a sink, bathtub or shower.

Electrical storms

~

~

Electrical storms can sometimes cause

power surges harmful to electronic
equipment.

-<f1-

For your own safety, use caution when

using electric appliances during storms.

.~-.- "-:-- ..~,.:-~

""'-'---

~..- -

..,;:"~

32

CT 921

32

5/15/98. 1,:13 AM

+

~

~

-.

~

If you have difficulty operating your
phone, the suggestions below should
solve the problem. If you still have
difficulty after trying these suggestions,
call AUOIOVOX Communications

at (800) 229-1235.

THE PHONE DOESN'T WORK AT

ALL.
.Make sure the Power Cord !s

pugged

.Make sure the telephone line cord

is plugged firmly into the base unit
and the telephone wall jack.

.Make sure the batteries are properly

charged. If the 'LOW BATTERY'
message is shown, the battery
pack needs charging.

NO DIAL TONE.

First check all the suggestions

above.

I

~

~

If you still don't hear a dial tone,
disconnect the base unit from the
telephone jack and connect a
different phone. If there is no dial
tone on that phone either, the
problem is in your wiring or local
service. Call your local telephone

company.

YOU GET NOISE, STATIC, OR A

WEAK SIGNAL EVEN WHEN YOU'RE .

NEAR THE BASE UNIT. .

.Household appliances plugged into

the same circuit as the base unit
can sometimes cause interference.

Try moving the appliance or the

base unit to another outlet.

YOU GET NOISE, STATIC, OR A
WEAK SIGNAL WHEN YOU'RE
AWAY FROM THE BASE UNIT.
.You may be out of range. Either

move close to the base, or relocate

the base unit. --

.The layout of your home may be

limiting the range. Try moving the
base unit to another position.

THE HANDSET DOES NOT; RING

WHEN YOu RECEIVE A CALL.
.Make sure you have the handset

ringer activated. To set the ringer,
see "PROGRAMMING THE
RINGER".

.Make sure the telephone line cord

is plugged firmly into the base unit
and the telephone jack. Make sure
the power cord is plugged in.

.You may be too far from the base

unit.

.You may have too many extension

phones on your telephone line to
allow all of them to ring. Try
unplugging some of the other

phones.

YOU HEAR OTHER CALLS WHILE
USING YOUR PHONE. :";~ 0 " "

.Disconnect your base unit from the

telephone jack, and plug in a
regular telephone. If you still hear
other calls, the problem is probably
in your wiring or local service. Call
your local telephone company.

YOU HEAR NOISEJNTt;fEHANDSET;
AND NONE OF THE K"E"i5"""oR

BUTTONS WOR~ ":, ;0'.J:,0;:oo 0"
Make sure the power cord is plugged
in.

COMMON CURE FOR ELECTRONIC
EQUIPMENT ~ .

Electronics. like people, can sometimes
get confused. If the unit does not seem
to be responding normally, then try
putting the handset in the cradle. If it
does not seem to respond after trying
this a few times. do the following (in
the order listed):

1. Disconnect the power to the base.

2. Disconnect the handset battery.

3. Wait a few minutes.

4. Connect power to the base.

5. Connect the handset battery.

6. Put the handset in the base.

,

." :" ')J

+

C7t' 921

33

33

S/1S198,11:13AM

-@-

FREQUENCY CONTROL
Crystal Controlled Dual PLL Synthe-
sizer

WEIGHT
Handset: 250 grams
Base: 415 grams

-($}-

TRANSMIT FREQUENCY

Handset: 925.05 MHz to 927.75 MHz

( All ten channels within this
range)

POWER REQUIREMENTS ~
Handset: Self-contained nickel-cad-

mium rechargeable battery
supply, 3:6V nominal,
600mAh capacity.

: 902.3 MHz to 905.0 MHz

(All ten channels within this
range)

RECEIVE FREQUENCY
Handset: 902.3 MHz to 905.0 MHz

( All ten channels within this
range) :

Base : 925.05 MHz to 927.75MHz

( All ten channels within this

I

NOMINAL EFFECTIVE RANGE
Maximum power allowed by FCC and
IC. Actual operating range may vary
according to environmental conditions

range)

Base:

9VDC @ 300mA

MEMORY

Speed Dial:20 Memory locations, 20

digits per location.

CID

SPECIFICATiONS: ARE l;;Y:pICAL.
AND MAY CHANGE WITHOUT No:.

TiCE. .;c ~ .

: Alpha Numeric Display 50

Memory locations

.,.~ ..

~

.

at the time of use.

SIZE
Handset: 18. 7x6.25x4.1 cm (L x W xT)

Maximum (Antenna ex-
cluded)

21.9x14.4x6.4cm (L x W x

T) Maximum (Antenna ex-
cluded)

CT 921 34

34

,

-@-

S/15/98.11013AM

AUDIOVOX CORPORATION (the Company), warrants to the original retail purchaser
of this Audlovox Telephone, that should this product or any part thereof (except the
items listed below), under normal use and conditions, be proven defective in material
or workmanship within the first twelve (12) month period from the date of purchase.

such defect(s) wlll-be repaired or replaced (with new or rebuilt parts) at the Company's

option, without charge for parts or labor directly related to the defect(s).

The accessories consisting of the antenna and adapter are similarly warranted for
twelve (12) months from original purchase.

This Warranty does not apply to batteries, or costs incurred for testing or checking,

or to any product or part hereof which has suffered through alteration, serial number
defacement, improper Installation, excessive temperature or humidIty, environmental

conditions, mishandling, misuse, neglect or accident This Warranty is not assignable
or transferable.

To obtain repairs or replacement wIthIn the terms of this Warranty, the product should
be delivered with proof of purchase, specification of defect(s), transportation prepaid,
to the Company at t,he address shown below,

Call toll free to (800) 229-1235 (in N. Y.State, (516) 233-3410) for reference to an

Authorized Warranty Station In your area.

THE EXTENT OF THE COMPANY'S LIABILITY UNDER THIS WARRANTY PROVIDED
ABOVE' AND, IN NO EVENT, SHALL THE COMPANY'S LIABILITY EXCEED THE

PURCHASE PRICE PAiD BY PURCHASER FOR THE PRODUCT.

~

~

-@-

,

35

a."..:

~

JS

-3
~-

199&16/22. PM 07:28

rf

~~

:""=C REGULATIONS 4

IMPORTANT SAFETY INSTRUCTIONS 8' 1

REPLACING THE BATTERY PACK ~ ,
GETTING STARTED 1",­WALL MOUNTING Q II,.
THE LCD DISPLAY ;~ .,..;­THE HANDSET LAYOUT ; .I p

THE BASE UNIT LAYOUT I/

QUICK REFERENCE GUIDE I ~

BASIC OPERATION 'Z.O
ADVANCED FUNCTIONS m 'Z-\
elB i~, Call Waiting ~'2..1
Switching Calls 2-1

Temporary Tone : D U

Programming The Ringer 1..1
Changing Ringer Types D ti

Turning Off The Ringer t.1.

CLA/DEL Key Function ~ z.z.

Advanced Dialing a 2.3

Lh

MEMORY DIALING a 'ZA-

--+-

Storing Speed Dial Numbers 'a l.L
Dialing From Memory )..S""
Changing Stored Numbers ).S
Deleting Stored Numbers ?S"
Storing Special Codes 25 ,).1,

CID-CALLER ID D J.1
CID-CALLER ID ~ '1

~eceiving and Storing Calls ~ '..1
Dialing From CID Memory :. '.1

Out Of Area Calls § .t::i.

"Private" Calls G ;..4

Transmission Error 0" )-'1

Reviewing Numbers 38 30
Deleting Numbers ~ 30

ADDmoNAL OPERATING TIPS 31

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TECHNICAL SPECIFICATIONS

12 MONTH LIMITED WARRANTY

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AUDIOVOX COMMUNICATIONS CORP.

555 Wireless Blvd., Hauppauge, New York 11788, 516-233-3300

16808 Marquardt Avenue, Cerritos, California 90701, 562-802-5100

405D Britannia Ad, East, Ste 101, Mississauga Ontario, Canada L4Z3E6, 905-712-9299

-Audiovox Pacific Pty Ltd. .

110 Rocky Point Road, Kogarah, NSW 2217, Australia, 02.9587-00 11

268 Orchard Road, 107-07, Singapore, 238856,65-733.5902

http:lllwww.audiovox.corn. L TCLL435

Audiovox Canada

Audiovox Singapore Pte. Ltd.

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