Cobra Electronics Cordless Telephone C P 7 2 0 User Manual

OWNER’S MANUAL  
C P - 7 2 0  
®
INTENNA  
C O R D L E S S  
T E LE P H O N E  
C o b r a Ele c t r o n ic s C o r p o r a t io n  
6 5 0 0 W . C o rt la n d S t re e t  
C h ic a g o , IL 6 0 6 3 5  
®
PRINTED IN HONG KONG  
©COBRA ELECTRONICS CORPORATION 1997  
480-102-P-001  
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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:  
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.  
The cordless handset operates on batteries.  
CAUTION:To reduce the risk of fire or  
personal injury, read and follow these  
instructions:  
A. Use only the battery pack supplied  
with the unit or identical replacement.  
B. Do not dispose of battery pack in a  
fire. The cells may explode. Check  
with local codes for possible disposal  
instruction.  
C. Since released electrolyte is corrosive  
and may cause damage to eyes or  
skin and may be toxic if swallowed:  
1. Read and understand all instructions.  
11. To reduce the risk of electric shock, do  
not disassemble this product, but take it  
to qualified servicemen when service or  
repair work is required. Opening or  
removing covers may expose you to  
dangerous voltages or other risks.  
Incorrect reassembly can cause electric  
shock when the appliance is  
2. Follow all warnings and instructions  
marked on the product.  
IMPORTANT  
SAFETY  
INSTRUCTIONS  
3. Unplug this product from the wall outlet  
before cleaning. Do not use liquid  
cleaners or aerosol cleaners. Use a  
damp cloth for cleaning.  
subsequently used.  
C1. Do not open or mutilate battery  
pack.  
C2. Always replace the entire battery  
pack rather than reusing one or  
more cells.  
4. Do not locate base unit near water, for  
example, near a bath tub, wash bowl,  
kitchen sink, or laundry tub, in a wet  
basement or near a swimming pool.  
12. Avoid using telephone (other than a  
cordless type) during an electrical storm.  
There may be a remote risk of electric  
shock from lightning.  
5. Do not place this product on an unstable  
cart, stand or table. The product may fall,  
causing serious damage to the product.  
13. Do not use the telephone to report a  
gas leak in the vicinity of the leak.  
14. Unplug this product from the wall outlet  
and refer servicing to qualified service  
personnel under the following  
conditions:  
C3. Do not expose batteries to heat or  
flame.  
D. Exercise care in handling the battery  
pack in order not to “short” the  
battery contacts with conducting  
materials such as rings, bracelets, and  
keys. The battery or conductor may  
overheat and cause burns.  
6. Slots and openings in the cabinet and  
the bottom or back are provided for  
ventilation, to protect it from  
5
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 of other  
controls may result in damage and  
will often require extensive work by a  
qualified technician to restore the  
product to normal operation.  
E. If the product has been dropped or  
the cabinet has been damaged.  
F. If the product exhibits a distinct  
change in performance.  
overheating; these openings must not  
be blocked or covered. The openings  
should never be blocked by placing the  
product in the 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 unless  
proper ventilation is provided.  
15. Never install telephone wiring during a  
lightning storm.  
16. Never install telephone jacks in wet  
locations unless the jack is specifically  
designed for wet locations.  
17. Never touch uninsulated telephone wires  
or terminals unless the telephone line has  
been disconnected at the network  
interface.  
18. Use caution when installing or modifying  
telephone lines.  
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, consult your dealer or local power  
company.  
P o w e r S u p p ly S p e c if ic a t io n s  
This symbol signifies that only the Cobra AC  
Adapter supplied with this cordless telephone  
(Part No. 768-021-N-001) should be used  
Input: AC 120V, 60Hz, 4W  
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.  
Output: DC 12V, 400mA  
!
9. Do not overload outlets and extension  
cords as this can result in the risk of fire  
or electric shock.  
SAVE THESE INSTRUCTIONS  
®
10. Never push objects of any kind into this  
Cobra  
C P -7 2 0  
N EED H ELP ?  
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SOME THINGS YOU NEED TO  
number s int o t he digit al  
memor y syst em and r et r ieve  
t hem j ust by pr essing a  
but t on or t wo. For  
addit ional inf or mat ion,  
s e e pa ge s 10 & 11.  
KNOW BEFORE YOU GET STARTED  
Now that your new Cobra Intenna is out of  
the box and ready to use, here are some  
things youll need to be aware of before  
getting started.  
DID YOU  
KNOW THAT...  
Lo c a t io n  
Be sure the location you‘ve chosen is near  
both an electrical outlet and a telephone  
jack—both are required to connect your  
new Cobra Intenna. Maximum range is  
obtained by locating the base as high as  
possible in your home.  
You can sel ect f r om  
any one of t he  
10 CHANNELS  
You can REPLACE THE  
BATTERIES in t he  
handset your sel f . It ’s f ast  
and easy. Se e pa ge 18  
f or simpl e-t o-f ol l ow  
inst r uct ions.  
C h a r g in g  
AVAILABLE any t ime you  
wish by pr essing a but t on.  
If t he channel your e using  
get s t oo much noise or  
st at ic, pick a cl eaner one,  
wit hout disconnect ing your  
cal l . Se e pa ge 14 f or  
mor e det ail s.  
After connecting, and before using the  
handset of your new system, it will need to  
rest in the base overnight (at least 12 hours)  
in order to charge.  
R in g e r  
1
Make sure the RINGER switches (one  
for handset and one for base), located  
7
RINGER  
on the side of the base, are set to ON.  
1
P u ls e / To n e  
Your new Cobr a Int enna  
Cor dl ess Tel ephone has a  
t r ue TWO-WAY  
INTERCOM buil t in. You  
can page f r om t he base or  
t he handset , use t he  
int er com as a baby  
monit or even use it t o  
l ocat e a mispl aced handset .  
For det ail s, see pa ge s 12  
& 13.  
2
Set the PULSE/TONE switch, located  
on the rear of the base, to the operation  
PULSE/  
TONE  
2
that is correct for your installation—see  
page 15 for additional information.  
Your handset is HEARING  
AID COMPATIBLE  
(HAC) which means t hat  
it s special l y designed t o  
act ivat e and enhance t he  
sound qual it y of your  
hear ing aid syst em. For  
mor e det ail s on how t his  
can wor k f or you, s e e  
pa ge 16.  
Ke e p Th is G u id e  
Put this guide in a handy place. You may  
want to refer to it for information when  
using or programming different features of  
your Cobra Intenna Cordless Telephone.  
ALL YOU HAVE TO DO TO IS PLUG IT IN  
Plug the adapter cord into the power jack on  
the rear of the base, then plug the adapter  
into any standard 110V outlet.  
This syst em has MEMORY  
DIALING. You can  
pr ogr am 32 of your most  
f r equent l y cal l ed phone  
S e t t h e h a n d s e t o n t h e b a s e a n d le t it  
c h a r g e o v e r n ig h t . M a k e s u r e t h e  
C H A R G E in d ic a t o r o n t h e b a s e lig h t s .  
C o n n e c t t h e p h o n e c o r d a n d in 1 2 h o u r s  
y o u ’r e r e a d y t o m a k e a n d r e c e iv e c a lls .  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
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WALL MOUNTING  
USING YOUR COBRA  
INTENNA CORDLESS PHONE  
O n A P la t e  
Your Cobra Intenna is designed to be used  
with AT&T, GTE or any other wall-mounting  
plates that may be purchased from most  
local electronics or home repair stores.  
Now that the handset batteries have  
charged overnight (at least 12 hours) your  
Cobra Intenna Cordless Phone is ready to  
use.  
2
1. Press the telephone cord into the slots  
under the base and wrap it around the  
cord storage area as shown.  
To A n s w e r A C a ll A t Th e  
B a s e  
2. Plug the phone connector into the  
telephone wall jack.  
2
When the phone rings, simply pick up  
the handset from the base and the  
TALK button will automatically light.  
When you hang up, it disconnects.  
TALK  
3. Plug the power adapter into the  
telephone base and a nearby AC  
power outlet.  
4.To hang the phone base, simply align  
the holes on the bottom of the base  
with the studs on the wall plate and  
slide the base down until it locks into  
place.  
To P la c e A C a ll A t Th e B a s e  
2
Pick up the handset from the base,  
then press and release the TALK button.  
TALK  
When you hear the dial tone, place your  
call.  
5. Pull cradle hook to correct position to  
hold handset.  
9
1
CRADLE  
HOOK  
D ir e c t ly O n Th e W a ll  
To A n s w e r o r P la c e A C a ll  
A w a y Fr o m Th e B a s e  
To install the base directly on any wall, youll  
need two screws and wall anchors (not  
included).  
2
The TALK button must be off (not lit)  
when the handset is away from the  
TALK  
base and not in use. Press and release  
the TALK button and, when your  
conversation is finished, press the TALK  
button again to disconnect. If you  
replace the handset in the base, the  
TALK button will disconnect  
1. Drill two holes aligned vertically, one  
31⁄4" higher than the other, and insert  
the wall anchors.  
2. Drive the screws into the anchors until  
the head of each screw sticks out  
about 1⁄8" from the wall.  
1
automatically.  
3. Plug the phone connector into the  
telephone wall jack.  
To A n s w e r A C a ll  
A t Th e B a s e U s in g  
Th e S p e a k e r p h o n e  
4. Plug the power adapter into the  
telephone base and a nearby AC  
power outlet.  
3
Press the SPEAKERPHONE button. See  
page 13 for details.  
5. To hang the phone base, simply align  
the holes on the bottom of the base  
with the screws on the wall and slide  
the base down until it locks into place.  
SPEAKER-  
PHONE  
3
6. Pull cradle hook to correct position to  
hold handset  
1
CRADLE  
HOOK  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
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USING THE MEMORY  
DIALING FEATURE  
positions. Be sure to note the names  
for each number you are storing, so  
you can create your directory card  
when you are finished.  
when your call goes through for hands-free  
communication, or pick up the cordless  
handset and press TALK for mobility.  
Memory dialing lets you store and dial 32  
commonly-called telephone numbers  
automatically, just by pressing a button.No  
more fumbling with the phone book,  
guessing at numbers or accidentally  
misdialing the people you call most.  
5
To S t o r e A N u m b e r  
Lo n g e r Th a n 1 6 D ig it s  
To D ia l A N u m b e r S t o r e d In  
M e m o r y Fr o m t h e H a n d s e t  
For telephone banking or alternate long  
distance service, you may need to program  
a number that is longer than 16 digits. To do  
so, you will need to divide the number  
between two different memory locations.  
Example: Store an alternate long distance  
acces number in location 1 and personal  
identification number for that service in  
location 2.  
If you are away from the base where  
5
the written directory is stored, you will  
have to remember the directory storage  
number for the call you wish to make.  
TALK  
To S t o r e A N u m b e r In M e m o r y  
U s in g t h e B a s e Ke y p a d :  
6
1. Press TALK for dial tone.  
2. Press MEMORY button.  
6
In order to accomodate 32 numbers, your  
memory system is designed with 16  
buttons which control both upper (1-16) and  
lower (17-32) banks of memory numbers. A  
red LED (light-emitting diode) lights to show  
you are using either upper or lower bank. To  
switch banks, press the button next to the  
LED marked “Lower.  
MEMORY  
3. Enter the directory storage number  
(01-32) for the call you wish to make  
(you must enter 0 before numbers 1-  
9 in order to access the memory  
number from the handset); the  
C r e a t in g A D ir e c t o r y  
As you are programming the memory bank,  
you will want to keep track of whose  
number will be dialed automatically.  
number you are assigning to each location.  
When finished, you may indicate who is  
assigned to each number by filling in the  
directory located on the base. This provides  
a quick and easy reference. To create the  
directory, remove the protective plastic  
cover by sliding it gently toward the middle  
and lifting it out. Fill in the names on the  
directory next to the number they have  
been assigned and replace the cover.  
To p r o g r a m n u m b e r s  
in t o t h e m e m o r y b a n k  
f r o m t h e b a s e :  
1
To R e p la c e O r C h a n g e A  
N u m b e r S t o r e d In M e m o r y  
11  
Simply repeat the steps under “To Store A  
Number In Memory. The new number will  
automatically replace the previous number  
stored. Be sure the red LED indicator is set  
on the correct memory bank.  
1. Make sure the LED for the bank you  
SWITCH  
BUTTON  
want (Upper” or “Lower”) is lit. If  
not, press the button next to the  
Lower” LED until the correct LED  
lights.  
2
1
LOWER  
P e r m a n e n t M e m o r y C ir c u it  
LED  
2. Press the button for the memory  
Your Cobra Intenna provides you with a  
permanent memory circuit; even if you  
disconnect the AC power or experience a  
power outage, dont worry-- your memory  
bank will remain programmed  
location you wish to program. You  
To D ia l A N u m b e r S t o r e d In  
M e m o r y Fr o m B a s e Ke y p a d  
U s in g S p e a k e r p h o n e  
2
3
will hear a beep and the LED will  
flash to let you know it is ready to  
store a number. You have 10 seconds  
to begin programming the number (if  
10 seconds elapses without digits  
being entered, the LED will stop  
flashing, you will hear a long beep  
and the LED will light steadily again).  
3
UPPER  
LED  
1. Be sure the proper memory bank is  
in use (LED is lit) for the call you wish  
to place. If not, press the button next  
to “Lower” LED until either “Upper”  
or “Lower” LED is lit.  
1
SWITCH  
BUTTON  
2
3. Enter the number you wish to store  
(up to 16 digits).  
2. Press SPEAKERPHONE button to  
get a dial tone. Speakerphone LED  
lights to tell you the speakerphone is  
in use.  
LOWER  
LED  
4. Press the same memory button  
again. You will hear two double  
beeps to confirm the number is  
stored. If you hear three beeps  
instead, you may have pressed the  
incorrect storage button, and youll  
need to repeat the steps above.  
3
UPPER  
LED  
3. Press the storage button next to the  
name of the location you wish to call.  
The number is dialed automatically.  
4
You may continue using speakerphone  
SPEAKER-  
PHONE  
5. Repeat the above steps for up to 32  
®
Cobra  
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N EED H ELP ?  
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USING THE BUILT-IN  
INTERCOM/PAGING SYSTEM  
4. If someone tries to reach you on the  
Intercom while you are talking on the  
handset, you will hear three rings.  
Press HOLD, then INTCM on the  
handset. (The base will beep and  
speakerphone will activate.  
Speakerphone LED will flash when  
there is a call on hold). Your caller will  
then be put on hold while you  
answer the INTCM. The TALK button  
will flash to remind you that you have  
a call on hold. Press TALK again to  
disconnect the INTCM and  
To U s e Th e P a g e r  
A s A H a n d s e t Lo c a t o r  
Call Dad to dinner, monitor the baby while  
you do laundry or keep an ear out to make  
sure that the children arent hurt. These  
options, along with many others, are at your  
fingertips with your Cobra Intenna because  
it doubles as a two-way intercom/paging  
system between the base and the  
handset—and outside calls will still come  
through! If you should misplace the  
handset, simply activate the pager and  
follow the signal until you locate it.  
5
1
3
2
HOLD  
1. To locate a misplaced handset around  
the home, press and release the  
INTERCOM button on the base.  
INTERCOM  
1
INTCM  
2. The handset will sound a series of  
three beeps for 30 seconds, giving  
you time to locate it. Once found,  
press and release the INTCM button  
on the handset to eliminate the  
signal.  
1
INTCM  
5
3
TALK  
To U s e Th e In t e r c o m / P a g e r  
reconnect with your telephone call.  
1
1. If you are at the handset and wish to  
speak with someone at the base,  
INTCM  
3. If you have not located the handset  
in 30 seconds, repeat steps above.  
press and release INTCM which will  
sound three rings and light the red  
indicator next to the INTERCOM  
To U s e Th e In t e r c o m  
A s A M o n it o r  
2
INTERCOM  
1
button on the base. The person may  
then respond just by speaking into  
the base. To end the conversation,  
simply press the INTCM button on  
the handset again.  
Monitor the room in which the base is  
located from another location using the  
Intercom feature.  
INTCM  
1 3  
USING THE SPEAKERPHONE  
1. Press INTCM button on the handset.  
This engages the itercom  
2. If you are at the base and wish to  
page someone at the handset, press  
and release INTERCOM, which will  
sound a series of three beeps and  
light the INTCM button on the  
handset. The person may then  
respond by pressing INTCM and  
speaking into the handset.  
Whether youre conducting a business  
meeting or want to let everyone in the  
family hear and talk when grandma calls to  
say “hello, nothing beats the convenience  
of our new speakerphone.  
microphone in the base, allowing you  
to listen to the base location area.  
2. Listen through the handset for as  
long as you like.  
To U s e Th e S p e a k e r p h o n e  
4
3. Disconnect by pressing INTCM  
again.  
1
After your call is connected, simply  
2
SPEAKER-  
INTCM  
3. If you receive a call during an  
press the button on the base next to  
PHONE  
3
intercom conversation, you will hear  
a low volume ringing. If you are at  
the handset, press TALK, which will  
disconnect the intercom and connect  
you with the incoming call. If you are  
SPEAKERPHONE and the red LED will  
light, indicating that the speakerphone  
is on. If desired, one person may  
continue to speak through the handset  
while connected. Press the button  
again to disconnect.  
4. If you receive an incoming call while  
you are using the monitor, you will  
hear a ringing in the handset.  
TALK  
4
5. Press TALK to connect the call. The  
Intercom is automatically  
disconnected.  
at the base, press SPEAKERPHONE.  
3
SPEAKER-  
PHONE  
TALK  
4
®
Cobra  
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N EED H ELP ?  
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ADDITIONAL FEATURES OF YOUR NEW COBRA INTENNA  
CORDLESS TELEPHONE WITH 32 NUMBER MEMORY  
Redial feature will try the call again in 60  
seconds, up to 10 times. When the call is  
answered, press SPEAKERPHONE to be  
connected. If you decide to call another  
number, the Auto Redial for the previous  
number will be cancelled. To disconnect the  
Auto Redial feature, press the AUTO  
REDIAL button again (Speakerphone LED  
will go out).  
B A T T E R Y S A V E R  
D IG ITA L S E C U R IT Y  
Aside from the features that have already  
been outlined, your Cobra Intenna is easier  
to program and use than ever before  
because many of the features you want  
most are built right inYou dont have to do  
a thing!  
The handset may be positioned away from  
the base without losing power for up to 7  
days, depending upon how often you use it.  
Cobra suggests that you regularly leave the  
handset in the base (for example, overnight)  
when not in use to keep your handset  
battery from losing its charge. The battery  
will not overcharge, even though the  
Your Cobra Intenna is manufactured with  
65,000 randomly generated security codes  
to guard against accidental or intentional  
eavesdropping on your private  
conversations.  
ILLU M IN A T E D K E Y P A D  
B U ILT- IN A N T E N N A  
CHARGE indicator light remains on.  
When the phone rings or you touch any  
button, the keypad automatically lights up,  
making it easy to read and use, even in the  
darkest room or late at night.  
Theres no unsightly antenna to extend,  
nothing to get bent or broken or possibly  
even cause physical harm, because  
antennas are built into the handset and  
base. That, along with our Clear Call® PLUS  
Compander Noise Reduction system which  
minimizes background noise and  
interference for optimum audio  
performance, makes the Intenna quality  
comparable to a standard corded phone.  
H E A R IN G A ID  
C O M P A T IB LE (H A C )  
P U LS E / T O N E S W IT C H  
Your Cobra Intenna handset is specially  
designed to be compatible with standard  
hearing aid systems.  
Your Cobra Intenna may be set to either  
PULSE orTONE, (depending upon your  
phone system) by moving the switch  
located on the back of the base. Mixed  
PULSE and TONE dialing may be used  
(when you have a PULSE system and need  
to access certain long-distance or  
computerized banking services) by keeping  
the base switch to PULSE and pressing the  
TONE button on the handset to temporarily  
switch to TONE. Hanging up resets to  
PULSE.  
E LE C T R O N IC H O LD  
Save time and steps in houses with more  
than one telephone. After you put a call on  
hold, your Intenna automatically releases  
when you, or someone else, picks up  
another handset on the same line. No need  
to come back and turn it off, because it  
turns itself off automatically.  
F LA S H B U T T O N  
1 5  
Press and release the FLASH button to  
briefly interrupt the phone line and, if you  
subscribe, access some of the advanced  
options like Call Waiting” or Three Way  
Calling” that may be offered by your  
telephone company.  
S C R A M B LE D S IG N A LS  
Although you may not realize it, other  
people with cordless phones, scanners or  
even baby monitors may be listening in on  
your conversations. This is especially  
disturbing when discussing personal  
information such as credit card numbers,  
vacation plans, etc. over the phone. Cobras  
PRIVATE CALLvoice scrambler eliminates  
that worry forever!  
LA S T N U M B E R R E D IA L  
(f r o m h a n d s e t o n l y )  
H A N D S E T A N D B A S E  
R IN G E R S W IT C H F O R  
Reached a busy number? Press FLASH to  
get a new dial tone, then press REDIAL  
button and the last number called will be  
redialed for you.  
V O LU M E C O N T R O LS  
H A N D S E T O R B A S E  
Gradually change the volume of your callers  
voice from low to high or high to low by  
pressing the volume control up/down  
button located on the side of your handset.  
You may do the same for the speakerphone  
by using the up/down button located on the  
base. Adjust to 3 levels from the handset  
and 16 levels from the base.  
Youre taking a nap, watching your favorite  
TV show or just got the baby to sleep and  
dont want to be disturbed. Temporarily turn  
off the ringer on the handset, the base or  
both by moving the switch on the side of  
the base into the off position.  
A U T O M A T IC LA S T  
N U M B E R R E D IA L  
(f r o m s p e a k e r p h o n e  
o n b a s e o n l y )  
1 0 - C H A N N E L  
R E C E P T IO N  
Your Cobra Intenna automatically scans  
through 10 channels every time you pick up  
the handset, to offer you the clearest, noise-  
free connection available. Should  
interference occur during a conversation,  
simply press and release the CHANNEL  
button until you reach a clear channel.  
2 - P O S IT IO N H A N D S E T  
Youre getting a busy signal but need to get  
through as soon as possible. No problem.  
When the number youve dialed is busy,  
disconnect from the speakerphone by  
pressing SPEAKERPHONE button, the  
press AUTO REDIAL button. The number  
will redial and the Speakerphone LED will  
flash. If the number is still busy, the Auto  
Handset may be positioned lying down or  
upright. However,it will not charge in the  
base when standing upright.  
O U T- O F - R A N G E S IG N A L  
When you press the TALK button and  
immediately hear three beeps, you know  
your handset is too far away from the base  
to work properly. Move closer to the base  
and try your call again.  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
1 -7 7 3 -8 8 9 -3 0 8 7  
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RECHARGEABLE BATTERY INFORMATION  
R e p la c in g Th e B a t t e r y  
To D is p o s e O f Yo u r B a t t e r y  
Your Cobra Intenna comes complete with a  
rechargeable nickel-cadmium battery  
already in the handset. You will need to  
charge the battery by plugging in the base,  
placing the handset in the base and letting it  
charge overnight (at least 12 hours).  
If you have recharged the battery for 12  
hours or more and the handset does not  
work when the TALK button is pressed, you  
may need to replace the battery. To order a  
new battery, call Cobra toll-free at 1-773-  
889-3087, or remove it from the handset  
and take it to a local hardware store or  
home center store to be certain that you  
are getting the proper replacement battery.  
The rechargeable nickel-cadmium (NiCad)  
battery in this product must be recycled or  
disposed of properly in compliance with all  
applicable laws. Certain states or  
municipalities require recycling and have  
established collection programs. Please  
contact your local waste removal authority  
for instruction or return to Cobra for  
recycling. Wrap carefully and mail postage  
prepaid to:  
B a t t e r y R e c h a r g in g  
There are three things that can happen to  
indicate that your handset battery needs  
recharging. When one of these three things  
occurs, you will need to return the handset  
to the base and recharge for at least 12  
continuous hours.  
To R e m o v e / R e p la c e Th e  
H a n d s e t B a t t e r y  
1
1. To remove the battery door, press  
and slide downward.  
1. The TALK button on the handset  
flashes.  
2. Carefully disconnect the battery pack  
and dispose of it properly. See  
BATTERY DISPOSAL below.  
C O B R A E LE C T R O N IC S  
C O R P O R A T IO N  
1 7  
2. A 2-beep warning sounds while you  
are using the phone. This indicates  
that you have just a few minutes of  
power left to complete your  
conversation before the phone  
disconnects.  
1
6 5 0 0 W . C o r t la n d S t r e e t  
C h ic a g o , Il. 6 0 6 3 5  
3. To replace, connect the new battery  
and replace the door. Return the  
handset to the base and charge the  
battery overnight (at least 12 hours).  
A t t n : B a t t e r y R e c y c lin g  
D o n o t p u t b a t t e r ie s in t o f ir e o r  
e x p o s e t o h ig h h e a t . (lo g o )  
Th e y m a y e x p lo d e .  
3. The handset beeps at 30 second  
intervals for five minutes when it has  
been away from the base too long.  
After five minutes, it will not flash or  
beep, nor will you be able to get a  
dial tone. Return the handset to the  
base for recharging.  
To C le a n Th e  
C h a r g in g C o n t a c t s  
The two metal charging contacts on both  
the handset and the base should be  
cleaned regularly with a soft, dry cloth for  
optimum recharging performance.  
Contains Nickel-Cadmium  
rechargeable batteries. Must be  
recycled or disposed of properly.  
NOTE:To prevent your batteries from  
running out of power, Cobra suggests that  
you leave the handset in the base as much  
as possible, when not in use. The CHARGE  
indicator will remain on as long as the  
handset is in the base, even after the  
batteries are fully recharged. This will not  
damage the batteries.  
Ni-Cd  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
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LIMITED ONE-YEAR WARRANTY  
IF YOU THINK YOU NEED SERVICE,  
CALL 1-773-889-3087  
COBRA ELECTRONICS CORPORATION warrants that its COBRA cordless telephone products,  
and the component parts thereof, will be free of defects in workmanship and materials for  
period of one (1) year from the date of first consumer purchase. This warranty may be enforced  
by the first consumer purchaser, provided that the product is utilized within the U.S.A.  
You may be asked to send your unit to the Cobra  
factory. It will be necessary to furnish the  
following in order to have the product serviced and  
returned.  
carrier (to avoid loss in transit), such as United  
Parcel Service (UPS), Roadway Parcel Service  
(RPS) or First Class Insured Mail to: Cobra  
Factory Service, Cobra Electronics Corporation,  
6500 W. Cortland St., Chicago, IL 60635. Cobra  
is not responsible for units not received if  
package has not been properly insured.  
Cobra will, without charge, repair or replace, at its option defective cordless telephone products  
or component parts upon delivery to the Cobra Factory Service Department, accompanied by  
proof of the date of first consumer purchase, such as a duplicated copy of a sales receipt.  
1. For Warranty Repair include some form of  
proof-of-purchase, such as a mechanical  
reproduction or carbon or a sales receipt. If you  
send the original receipt it cannot be returned.  
2. Send the entire product. Must include  
telephone handset, base and all cords.  
6. If the unit is in warranty upon receipt of your  
unit it will either be repaired or exchanged  
depending on the model. Please allow  
You must pay any initial shipping charges required to ship the product for warranty service. The  
return charges will be at Cobras expense if the product is repaired or replaced under warranty.  
For further details concerning procedures for obtaining service, see the “IfYou Need Service”  
section of this Owners Manual.  
3. Enclose a description of what is happening with  
the unit. Include a typed or clearly printed name  
and address of where the unit is to be returned.  
4. Pack unit securely to prevent damage in transit.  
If possible, use the original packing material.  
5. Ship prepaid and insured by way of a traceable  
approximately 3 to 4 weeks before contacting  
us for status. If the unit is out of warranty a  
letter will automatically be sent informing you  
of the repair charge or replacement charge. If  
you have any questions, please call  
Exclusions:This limited warranty does not apply 1) to any product damaged by accident,  
improper line voltage or weather related circumstances; 2) in the event of misuse or abuse of  
the product or as a result of unauthorized alterations or repairs; 3) to non-defective original  
equipment Nickel Cadmium rechargeable batteries; 4) if the serial number has been altered,  
defaced or removed; or 5) if the owner of the product resides outside the U.S.A.  
1-773-889-3087 for assistance.  
For technical assistance, please call our Automated Help Desk which can assist you  
by answering the most frequently asked questions about Cobra products.  
All implied warranties, including warranties of merchantability and fitness for a particular  
purpose, are limited in duration to the length of this warranty. Cobra shall not be liable for any  
incidental, consequential or other damages, including, without limitation, damages resulting  
from loss of use or cost of installation.  
1 9  
(773) 889-3087  
24 hours a day, 7 days a week.  
A Consumer Service Representative can be reached through  
this same number 8:00 am - 8:00 pm, Monday through Friday, CST.  
Technical assistance is also available on-line in the Frequently Asked Question  
Some states do not allow limitations on how long an implied warranty lasts and/or do not allow  
the exclusion or limitation of incidental or consequential damages, so the above limitations may  
not apply to you.  
This limited warranty gives you specific legal rights, and you may also have other rights which  
vary from state to state.  
REGISTERED WITH THE FCC  
Please note:This cordless telephone system  
operates in accordance with part 15 and part  
68 of FCC rules. Operation is subject to two  
conditions: 1) It may not interfere with radio  
communications, and 2) It must accept any  
interference received, including that which  
may cause undesirable operation. See the  
Operational Features section of this booklet for  
ways to reduce interference.  
The FCC requires you to provide information, if  
requested by the local telephone company,  
about the connection of an FCC registered  
telephone to their lines. They may ask you for  
the FCC registration number and the ringer  
equivalence number (REN), both of which are  
on the bottom of the base. They may also ask  
for the Universal Service Order Code (USOC)  
number, which is RJ-11C.  
C O B R A E LE C T R O N IC S  
C O R P O R A T IO N  
It is illegal to use this phone on a party line or  
to connect it to a coin-operated telephone.  
6 5 0 0 W . C o r t la n d S t r e e t  
C h ic a g o , Il. 6 0 6 3 5  
Your telephone company is required by the  
Federal Communications Commission to allow  
you to connect FCC registered telephones to  
their lines.  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
1 -7 7 3 -8 8 9 -3 0 8 7  
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NOTES  
Th e p h o n e is d e a d ; t h e r e a r e n o  
in d ic a t o r lig h t s o n .  
Are the power cord and telephone cord  
properly connected? If so, handset battery  
power has run out. Return to base and  
charge for 12 or more hours.  
FO R YO U R R EFER EN C E, KEEP  
A
R EC O R D O F TH E S ER IA L  
N U M B ER P R IN TED O N TH E M O D EL LA B EL O N TH E B A S E  
COBRA INTENNA  
CORDLESS  
TELEPHONE  
Th e h a n d s e t b e e p s d u r in g  
c o n v e r s a t io n o r a w a y f r o m t h e  
b a s e .  
S ER IA L N O .  
The battery needs to recharge. Return to  
the base for overnight charging.  
Th e TA LK b u t t o n c o n t in u e s  
f la s h in g o n t h e h a n d s e t .  
TROUBLESHOOTING  
CHECKLIST  
If y o u r s y s t e m d o e s n o t  
o p e r a t e p r o p e r ly, p le a s e  
t a k e a m o m e n t t o r u n  
t h r o u g h t h is c h e c k lis t a n d  
r e f e r t o t h e a p p r o p r ia t e  
s e c t io n s o f t h is g u id e .  
The battery needs to recharge. Return to  
the base for overnight charging.  
P o o r s o u n d q u a lit y ; t o o m u c h  
in t e r f e r e n c e .  
Dont cover the top section of the handset  
with your hand or rest it on your shoulder.  
This blocks the internal Intenna. Try  
2 1  
switching to a different channel, as well.  
Th e h a n d s e t d is c o n n e c t s , lo s e s  
p e r f o r m a n c e a n d / o r b e e p s  
w h e n in u s e a w a y f r o m t h e  
b a s e .  
If the problem persists,  
dont hesitate to call :  
You may be out of range or the battery  
needs recharging. Move closer to the base  
and/or recharge the battery overnight.  
H a n d s e t d o e s n ’t w o r k a f t e r  
p o w e r o u t t a g e o r a f t e r  
d is c o n n e c t in g a n d  
1-773-  
r e c o n n e c t in g it .  
Return the handset to the base for about  
30 seconds to automatically reset the  
security code.  
889-3087  
24 hours a day,  
7 days of the week.  
Were here to help.  
P o w e r d o e s n ’t s e e m t o b e o n .  
Make sure power adapter is properly  
connected to a working outlet and the jack  
on the back of the answering system.  
®
Cobra  
C P -7 2 0  
N EED H ELP ?  
1 -7 7 3 -8 8 9 -3 0 8 7  
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FO LD O VER BO TTO M ED G E A N D TH EN TA P E S ID ES  
NOTES  
Cobra CP-720 Intenna Cordless Phone Accessories  
Description  
Part No.  
Cost Ea. X Qty. = Amount  
NICKEL-CADMIUM BATTERY PACK ASSEMBLY  
For use with model CP-720  
213-013-N-001  
$25.00  
AC POWER ADAPTER  
For use with model CP-720  
(Prices subject to change without notice.)  
★★ Illinois residents add 7%  
Amount  
★★ Cook Co. residents add .75% (7.75% total)  
★★ Chicago residents add 1% (8.75% total)  
★★ Indiana residents add 5%  
★★ Michigan residents add 4 %  
★★ Minnesota residents add 6%  
★★ Ohio residents add 6%  
(Tax if applicable)  
Shipping//handling  
Total  
$3.75  
★★ Wisconsin residents add 5%  
FO LD H ERE FIRS T  
Make check or money order (no stamps) payable to:  
Cobra Accessories Dept.  
6500 W. Cortland St., Chicago, IL 60707  
Call 1-773-889-3087 or FAX 1-773-622-2269 (for credit card orders)  
Please print clearly:  
Name  
Address (Not P.O. Box)  
City  
State  
Zip  
Exp. Date  
Credit Card No.  
Customer Signature  
Circle One:  
Visa  
MasterCard  
Discover  
Allow 4 to 6 weeks for delivery. Offer valid in Continental U.S. only.  
FO LD H ERE  
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