Plantronics Cordless Telephone 66523 01 User Manual

CORDLESS HEADSET  
TELEPHONE  
CT11/12  
CT11  
CT12  
PRODUCT INFORMATION BOOKLET  
 
BASICS  
WELCOME  
There are three Caller ID setup options  
available: AUTOTALK, CIDCW (Caller ID  
on Call Waiting), and AREA CODE.  
This Product Information Booklet contains features  
and operations not described in the Quick Start Guide  
(QSG). The QSG also includes warranty information,  
FCC and the Industry Canada Notice.  
AUTOTALK allows  
you to answer the  
phone without  
TIP  
pressing TALK/FLASH. If the phone rings  
when AutoTalk is On, simply remove the  
remote from the base and the phone  
automatically answers the call. Or if the  
remote is not in the base, press any number  
key, /TONE, or # to answer the call. If you  
set AutoTalk to Off, you must press talk/flash  
to answer the call. Setting AutoTalk follows  
in this section.  
BASICS . . . . . . . . . . . . . . . . . . . 3  
Caller ID Options . . . . . . . . . . . 3  
Making and Receiving Calls. . . . 6  
Ringer Tone Setting. . . . . . . . . . 7  
Ringer Volume Setup . . . . . . . . 8  
Ringer Mute (temporarily) . . . . . 8  
Redialing a Call . . . . . . . . . . . . 9  
Distinctive Ringer Setup. . . . . . 10  
Adjusting Headset Volume . . . 11  
Mute Microphone. . . . . . . . . . 11  
Tone Dialing Switch-over . . . . . 12  
Traveling Out-of-Range . . . . . . 12  
Selecting a Different Channel . 13  
Find Remote. . . . . . . . . . . . . . 13  
Flash and Call Waiting . . . . . . 14  
Voice Mail LED. . . . . . . . . . . . 14  
Viewing the Phonebook. . . . . . 20  
Making Phonebook Calls. . . . . 22  
Speed Dialing. . . . . . . . . . . . . 23  
Editing the Phonebook . . . . . . 23  
Chain Dialing . . . . . . . . . . . . . 25  
One Touch Dialing . . . . . . . . . 26  
Any key answer  
can be used only  
when AutoTalk is  
set to On.  
CALLER ID . . . . . . . . . . . . . . . 28  
Viewing the Caller ID List . . . . 31  
Deleting Information from  
the Caller ID List. . . . . . . . . . . 32  
Using Caller ID Message List. . 33  
Call Waiting Deluxe Features. . 35  
CIDCW (Caller ID on Call Waiting)  
performs the same as  
regular Caller ID on a  
MORE. . . . . . . . . . . . . . . . . . . 36  
Changing the Digital  
Security Code . . . . . . . . . . . . . 36  
Installing the Beltclip . . . . . . . . 38  
Note on Power Sources. . . . . . 39  
Maintenance . . . . . . . . . . . . . 40  
General Information . . . . . . . . 41  
call waiting number.  
CW Deluxe allows you to handle call waiting  
calls in seven different ways. See page 28  
for the Caller ID (CID) section and page 35  
for CW Deluxe.  
PHONEBOOK. . . . . . . . . . . . . 15  
Steps to Enter Names  
and Special Characters . . . . . . 16  
Storing Names, Phone  
Numbers, Distinctive Rings,  
and Speed Dial. . . . . . . . . . . . 17  
Phonebook Storage Process . . 18  
You must subscribe to CID and CIDCW from  
your phone company in order to use this  
feature.  
TROUBLESHOOTING. . . . . . . 42  
PARTS & ACCESSORIES . . . . . 44  
INDEX . . . . . . . . . . . . . . . . . . 47  
The CW Deluxe is a separate service  
available through your phone company.  
 
2
3
ENTERING YOUR AREA CODE  
If you enter a 3-digit area code number in  
the Area Code” option, your local area  
code does not appear in Caller ID messages.  
For calls received from outside your local  
area code, you will see a full 10-digit  
number.  
AREA CODE allows you to enter your local  
area code so CID will not show the area  
code from local callers. See the next page  
for area code instructions.  
TIP  
If your calling  
area requires  
10-digit dialing,  
do not program  
this option.  
To change your Caller ID options:  
TIP  
1) When the phone  
is in the standby  
mode, press  
1) When the phone  
is in the standby  
mode, press  
Standby Mode:  
The remote is  
not in use, is off  
the base, and  
TALK/FLASH  
has not been  
pressed. A dial  
tone is not  
MENU/MUTE.  
MENU/MUTE.  
2) Press or to  
move the pointer  
2) Press or to  
move the pointer  
to “Caller ID  
to “Caller ID  
Setup”, then press SELECT/CH.  
Setup”, then  
press SELECT/CH.  
present.  
3) Press or to  
choose Auto  
3) Press or to  
move the pointer  
to Area Code”,  
then press  
TIP  
Talk” or “CIDCW”,  
then press SELECT/CH.  
If the area code  
has already been  
stored in  
4) Press or to change the selection.  
SELECT/CH.  
AutoTalk: Auto Talk  
On” or Auto Talk  
Off”  
4) Use the number  
keypad (0 to 9)  
to enter a 3-digit  
area code.  
memory, the  
stored area code  
will be displayed  
in this mode. To  
change it, press  
delete and the  
number keypad  
to enter the new  
area code.  
CIDCW: “CIDCW  
On”, “CW Deluxe  
On” or “CIDCW Off”  
5) Press SELECT/CH, and you will hear  
a confirmation tone.  
5) Press SELECT/CH, and you will hear  
6) Press END to exit.  
a confirmation tone.  
6) Press END to exit.  
 
4
5
MAKING AND RECEIVING CALLS  
RINGER TONE SETTING  
To make or receive a call, you need to connect the Firefly™  
headset to the remote unit. (See the Quick Start Guide.)  
1) When the phone  
is in the standby  
mode, press  
MENU/MUTE.  
Put on the headset.  
2) Press or to  
move the pointer  
to “Ringer Tones.  
Remote On Base  
Remote Off Base  
To answer  
Pick up the remote  
and press TALK/FLASH  
OR  
(AutoTalk) Pick up  
the remote.  
Press TALK/FLASH  
OR  
(AutoTalk) Press any  
number key, /TONE,  
or # .  
You can choose  
from 6 ringers or  
4 melodies:  
To make  
a call  
1) Pick up the remote.  
2) Dial the number, then press TALK/FLASH.  
press TALK/FLASH.  
Dial the number, then  
Ringers [Flicker,  
Clatter, Leap Frog, Ping Ball, Reminder,  
Soft Alert]  
TIPS  
NOTE: The  
remote must be  
out of the base  
during calls.  
Replacing the  
remote will  
OR  
OR  
Melodies [Beethoven 9, For Elise (Elise),  
Merry Christmas (Merry-Xmas), Home  
Sweet Home (Hm Swt Hm)]  
Standby mode is  
when the remote  
is charged and  
the Talk button  
has not been  
1) Pick up the remote.  
2) Press TALK/FLASH.  
3) Listen for the dial tone. 3) Dial the number.  
4) Dial the number.  
1) Press TALK/FLASH.  
2) Listen for the dial tone.  
cause the call  
to disconnect.  
3) You will hear the ringer or the melody  
as you scroll through the options.  
pressed. The  
display is blank.  
To hang up Press END, or return the remote to the base.  
4) Press SELECT/CH and you will hear a  
To enter  
a pause  
within  
When you dial the number, press  
PAUSE/REDIAL. “P” appears in the  
display which represents a pause.  
confirmation tone.  
If you set the  
ringer to Off, the  
ringer tone will  
not sound.  
5) Press END to exit.  
the dialing  
sequence  
The headset LED will continue flashing during Talk Mode.  
When you press DELETE during a call, the call will be placed  
on hold and you will hear a ring tone. To resume the call, press  
TALK/FLASH or DELETE. If the remote remains idle for 5 minutes,  
the phone hangs up and returns to the Standby automatically.  
 
6
7
REDIALING A CALL  
RINGER VOLUME SETUP  
The last three phone numbers dialed can be  
quickly redialed.  
1) When the phone is in the standby mode,  
TIPS  
TIP  
press MENU/MUTE.  
2) Press or to  
move the pointer  
If you select  
If the number  
exceeds 32 digits,  
only the first 32  
digits are  
retained in  
redial memory.  
REDIALING FROM STANDBY MODE  
“Ringer Off”,  
<Ringer Off>  
appears on the  
display when you  
make or receive  
calls, or when  
charging the  
remote.  
1) Press PAUSE/  
REDIAL. The  
phone number  
that was last  
to “Ringer Volume,  
then press SELECT/CH.  
3) Press or to move the pointer  
through the ringer settings (Ringer Off,  
Ringer Low, or  
dialed appears  
PAUSE/REDIAL  
If the redial  
memory is empty,  
you will hear a  
beep.  
on the display.  
Ringer High).  
You will hear a  
ringer or melody  
at the selected volume (or does not ring  
when you select “Ringer Off”).  
2) Press PAUSE/  
REDIAL again.  
PAUSE/REDIAL  
Each press of  
PAUSE/REDIAL  
If you have not  
pressed any key  
for 30 seconds,  
the phone returns  
to standby mode.  
will display one  
of the last three  
PAUSE/REDIAL  
4) Press SELECT/CH, and you will hear  
a confirmation tone.  
numbers  
dialed.  
5) Press END to exit.  
If you press END,  
the operation is  
canceled and the  
phone will return  
to the standby  
mode.  
3) Press TALK/FLASH. The selected number  
is dialed.  
RINGER MUTE (TEMPORARILY)  
4) Press END to hang up.  
You can temporarily mute the ringer tone.  
When the remote is off the base and the  
phone is ringing, press END. The ringer  
tone will return to the previous setting  
starting with the next incoming call.  
REDIALING FROM TALK MODE  
1) Press TALK/FLASH.  
When using the  
redial feature in  
talk mode, only  
the last number  
dialed will be  
displayed.  
2) Press PAUSE/REDIAL. The last number  
dialed will be displayed and redialed.  
3) Press END to hang up.  
 
8
9
DISTINCTIVE RINGER SETUP  
ADJUSTING THE HEADSET VOLUME  
“Distinctive Ringer” allows you to preset  
The remote headset volume settings (Volume  
Low, Volume Medium, Volume High, and  
TIP  
TIP  
memory locations with a designated ring  
tone. When an incoming call is received  
and the Caller ID information matches the  
information in one of the memory locations,  
the Distinctive Ring that has been stored for  
that particular caller will sound.  
Volume Maximum) can only be adjusted  
See ”Storing  
Phone Numbers,  
Names,  
Distinctive Rings,  
and Speed Dial”  
on page 17 for  
storing a  
Distinctive Ring  
in the Phonebook.  
When you press  
during a call. Press or to select the  
volume setting. When you hang up, the  
phone keeps the last volume setting  
selected.  
in maximum  
volume level or  
in lowest  
volume level,  
an error tone  
sounds.  
If you have set multiple memory locations  
with distinctive rings, switching the setting to  
“Distinctive Off” will result in no distinctive  
ringing. All incoming calls will have a normal  
ring tone. Switching to “Distinctive On” will  
activate all programmed distinctive ring  
memory locations.  
MUTE MICROPHONE  
TIP  
You can temporarily  
turn Off the micro-  
phone so that the  
1) When the phone is  
in the standby  
Do not press  
END to cancel  
muting. END will  
disconnect the  
call and the  
phone will return  
to standby mode.  
person you are talking  
with cannot hear you.  
mode, press  
MENU/MUTE.  
1) During a telephone  
call press and hold  
2) Press or to  
move the pointer to  
“Distinct. Ring”,  
then press  
MENU/MUTE for a  
few seconds to turn  
Off the microphone, and “Mute” appears  
on the display.  
SELECT/CH.  
3) Press or to choose “Distinctive On”  
2) Press MENU/MUTE again to cancel muting.  
or “Distinctive Off”.  
4) Press SELECT/CH, and you will hear a  
confirmation tone.  
5) Press END to exit.  
 
10  
11  
TONE DIALING SWITCH-OVER  
SELECTING A DIFFERENT CHANNEL  
If you encounter interference while using  
your phone, you can manually change the  
phone’s channel for clear operation. This  
function works only when the phone is in use.  
Some telephone  
TIP  
companies use  
equipment that  
The tone feature  
only applies  
when the dial  
mode is set to  
pulse.  
require pulse dialing  
(sometimes referred  
to as rotary dialing).  
If you need to enter  
Press SELECT/CH. “Scanning” appears  
on the display, indicating the phone is  
changing to another channel.  
tone dialing digits,  
A tone number  
can be stored in  
a memory  
location. This is  
referred to as  
Chain Dialing.  
(See page 25.)  
you can switch-over to tone dialing during  
the call. For example, entering your bank  
account number after you have called your  
bank.  
FIND REMOTE  
Initially make your call with the pulse  
dialing mode. Once your call connects,  
press /TONE. Enter the desired number.  
These digits will be sent as tone dialing.  
Once the call ends, the tone mode is  
canceled and pulse dialing mode resumes.  
To locate the  
TIP  
remote, press  
PAGE on the  
If the remote  
battery is  
base. The  
remote beeps  
for 60 seconds,  
and “Paging”  
appears on the display.  
completely  
drained, the  
remote will not  
beep when  
paging.  
TRAVELING OUT-OF-RANGE  
Paging is canceled when pressing any key  
on the remote or PAGE on the base.  
Additionally, if you receive an incoming  
call, PAGE is canceled.  
During a call, as you begin to move your  
remote too far from your base unit, static  
increases. If you pass the range limits of the  
base unit, your call will terminate within 30  
seconds.  
 
12  
13  
USING THE PHONEBOOK  
FLASH AND CALL WAITING  
If you have Call  
Phonebook allows you to dial a number  
TIP  
Waiting service and  
a call waiting tone  
sounds while you are  
on a call, press  
TALK/FLASH to  
accept the waiting  
call. There is a short  
pause, then you will  
hear the new caller. To return to the original  
caller, press TALK/FLASH again.  
using just a few key presses. It stores  
names/numbers in the Phonebook memory  
location, and you can search names in  
alphabetical order. You have a total of 100  
locations that can be used for the  
Phonebook (including the Speed dials) and  
Caller ID messages.  
You must  
subscribe  
through your  
local  
telephone  
company to  
receive Call  
Waiting Service.  
If any of the following occurs while using  
the Phonebook function, operation will be  
canceled.  
• Press END. The phone will return to the  
standby mode (or the call will be  
disconnected).  
MESSAGE LED  
The message  
• Press TALK/FLASH.  
waiting LED on the  
remote is designed  
• Place the remote in the base.  
TIP  
to work with your  
voice mail service  
provided by your  
local telephone company. The LED flashes  
when you have new incoming messages in  
the voice mail service.  
• Press DELETE, or receive an incoming call  
or PAGE (from the standby mode only).  
If the remote  
remains idle for  
30 seconds, the  
phone will return  
to the standby  
mode (or back  
to the call).  
• Receive a CIDCW (Caller ID on Call  
Waiting) (during a call only).  
You may need to occasionally reset the  
indicator if it remains On after you’ve  
retrieved your messages. To reset the  
indicator, when the phone is in the standby  
mode press and hold PAGE on the base until  
the paging sound stops (about 5 seconds).  
 
14  
15  
STEPS TO ENTER NAMES AND SPECIAL  
CHARACTERS USING THE KEYPAD  
Refer to the letters on the number keys to select the desired  
characters. With each press of a number key (09), the  
displayed character appears in the following order: Upper case  
letters first, lower case letters next and finally the number  
corresponding to the key.  
USING THE PHONEBOOK  
When entering names and/or phone  
numbers, each of the four steps in the entry  
process must be completed. A “Done”  
message and a beep indicate the  
name/phone number is complete.  
When the phone is in the standby mode  
(Talk button not pressed), press  
/tSPEED.  
The remote displays the number of the  
Phonebook locations used, and information  
on searching and storing Phonebook  
locations.  
(1ST LINE) The  
number of the  
Phonebook entries  
(2ND LINE) Press the number keypad,  
or to search  
(3RD LINE) Press SELECT/CH button to  
begin the storage process.  
IF YOU MAKE A MISTAKE WHILE ENTERING A NAME  
Use  
/tSPEED or CIDs to move the cursor to the incorrect  
character. Press DELETE to erase the wrong character, then enter the  
correct character. To delete all characters, press and hold DELETE.  
 
16  
17  
PHONEBOOK STORAGE PROCESS  
STEP 2: STORING PHONE NUMBERS  
5) From the  
STEP 1: STORING NAMES  
TIP  
TIPS  
1) From Standby (the Remote charged and  
All four steps  
“Store/Edit No.”  
display. press the  
number keypad to enter the phone  
number (up to 20 digits).  
the Talk Button not presseddisplay is  
The pause key  
counts as one  
digit. Pressing  
PAUSE/REDIAL  
more than once  
increases the  
length of pause  
between  
must be entered  
to complete the  
storage process.  
The display will  
read DONE and  
you will hear a  
beep.  
blank), press the  
/tSPEED button.  
2) Press the SELECT/CH  
button to begin the  
storage process.  
“Store/Edit Name”  
appears.  
6) Press SELECT/CH to store the number.  
STEP 3: DISTINCTIVE RINGS  
7) “Distinctive Ring”  
numbers.  
3) Enter the name (up to 16 characters) by  
using the number keypad.  
• See the “Steps for entering names and  
special characters” (see the previous  
table).  
appears. Then  
press or to  
move the pointer to hear and choose one  
of the distinctive ring options.  
If you choose  
not to store a  
“Distinctive  
Ring”, simply  
select the “No  
Selectn” option.  
TIPS  
When the  
• Use s and t to move the cursor to  
the desired location.  
• Use DELETE to delete characters as  
needed.  
• Press and hold DELETE to delete all the  
characters.  
• If a name is not required, skip step 3  
and go to step 5.  
8) Press SELECT/CH to store the distinctive ring.  
memory is full,  
you will hear a  
beep and  
“Memory Full”  
appears. You  
cannot store  
any more names  
and numbers.  
If you select  
a speed dial  
STEP 4: SPEED DIAL  
9) “Speed Dial”  
location where a  
number is already  
stored, the new  
number will  
replace the old  
number, and the  
old number will  
remain in the  
Phonebook, but  
no longer be on  
speed dial.  
appears. Then  
press or to  
move the pointer to select the speed dial  
location (10 locations: SPD1SPD0).  
4) Press SELECT/CH to store the name, then  
“Store/Edit No.” appears ready for the  
next step.  
10) Press SELECT/CH to store.  
You will hear a confirmation tone and  
“Done!” appears on the display.  
This completes your entry into the Phonebook.  
Now in the standby mode when you press the  
/tSPEED button, the Phonebook will  
show another entry.  
 
18  
19  
VIEWING THE PHONEBOOK  
Your phone stores names/numbers in the  
Phonebook memory locations, and you can  
search names in alphabetical order. You can  
view the Phonebook during a call as well as  
when the phone is in the standby mode.  
B) FROM A NUMBER KEY  
TIP  
Refer to the letters on the number keys  
to select the first letter of the desired  
name. Press a number key until any  
name with the same initial is displayed  
(See the table in “Steps for Entering  
Names and Special Characters” on  
page 16).  
“/SD” appears on  
the display when  
you review the  
One Touch Dial,  
and “/SPDn”  
appears when  
you review a  
Speed dial.  
1) Press  
/tSPEED. If you press  
/tSPEED during  
a call, the screen on  
the right appears.  
For example, to search for “John” press  
5 once. Press or until the name is  
displayed. If you press while the first  
name in “J” is displayed, a name start-  
ing with “I” will appear, or if you press  
while the last name in “J” is dis-  
played, a name starting with “K” will  
appear.  
2) Press or , or the  
number keypad to  
view the Phonebook  
locations.  
A) ALPHABETICAL ORDER  
Ascending order: Press to view loca-  
tions. The location in the One Touch  
Dial appears first in the display. Each  
time is pressed, Phonebook loca-  
tions appear in ascending order.  
3) To end viewing your Phonebook, press  
/tSPEED (if you view the Phonebook  
during a call) or END.  
Descending order: Press to view  
locations. A name starting with a num-  
ber or a mark, or <No Name>  
appears first. Each time is pressed,  
Phonebook locations appear in  
descending order.  
 
20  
21  
MAKING CALLS USING THE PHONEBOOK  
SPEED DIALING  
If you have selected a speed dial memory  
location (10 locations: SPD1SPD0) when  
storing a phone number in the Phonebook  
dial location, you can use the speed dialing  
feature.  
FROM STANDBY MODE  
1) When the phone  
is in the standby  
mode, press  
/tSPEED.  
1) When the phone is in the standby mode,  
press and hold a number key (09)  
associated with the speed dial.  
2) Press or to view the Phonebook  
locations (see “Viewing the Phonebook”  
on page 19).  
The number stored in the speed dial  
appears.  
3) Press TALK/FLASH. The displayed number  
is dialed.  
2) Press TALK/FLASH. The phone number  
4) To hang up, press END.  
in the speed dial (SPD1SPD0) is dialed.  
3) Press END to end the call.  
FROM TALK MODE  
1) Press TALK/FLASH.  
EDITING THE PHONEBOOK  
1) When the phone  
is in the standby  
mode, press  
2) Press  
/tSPEED.  
3) Press or to view the Phonebook  
locations (see “Viewing the Phonebook”  
on page 19).  
/tSPEED.  
4) Press SELECT/CH. The number in the  
displayed Phonebook location is dialed.  
2) Press or , or the number keypad to  
view the Phonebook locations (see  
5) To hang up, press END.  
“Viewing the Phonebook” on page 19).  
 
22  
23  
CHAIN DIALING  
3) When the Phonebook  
location to be edited  
The memory locations in the remote are not  
limited to phone numbers. You can also  
store a group of numbers (up to 20 digits),  
that you need to enter once your call  
connects. This is referred to as Chain  
Dialing.  
appears, press  
SELECT/CH. “Store/Edit Name” appears.  
4) Follow the steps 3 to 7 under “Storing  
Phone Numbers, Names, Distinctive Rings  
and Speed Dial” starting on page 17 to  
complete the editing operation.  
An example of this is a bank account  
number. Store the special number in the  
Phonebook location (refer to “Storing Phone  
Numbers, Names, Distinctive Rings and  
Speed Dial” on page 17).  
5) Press SELECT/CH. You will hear a  
confirmation tone and “Done!” appears  
on the display.  
Once you have called your bank, and when  
you are prompted to enter the account  
DELETING THE STORED DATA  
1) Select the  
number, press  
/tSPEED and use or ✱  
to select the number in the Phonebook  
location, then press SELECT/CH.  
Phonebook location  
to be deleted.  
Press DELETE.  
“Delete Memory?” appears.  
2) Press to move  
the pointer to  
Yes”.  
3) Press SELECT/CH  
or delete. You hear  
a confirmation  
tone. “Deleted!”  
appears in the display.  
 
24  
25  
ONE TOUCH DIALING FOR ONE NUMBER  
MAKING CALLS WITH  
You can store one number that you dial  
often in the One Touch Dial. The one touch  
dialing allows you to dial that number with  
one key press.  
THE ONE TOUCH DIAL  
When the phone is in the standby mode, press  
/tSPEED. The number in the  
one touch location is dialed.  
and hold  
STORING THE ONE TOUCH DIAL  
1) When the phone  
is in the standby  
mode, press  
DELETING THE ONE TOUCH DIAL  
1) When the phone  
is in the standby  
mode, press  
/tSPEED.  
2) Press once to  
display the One  
/tSPEED.  
2) Press once to  
display the One  
Touch Dial menu.  
3) Press SELECT/CH.  
Touch Dial menu.  
4) Store the name, phone number, and  
distinctive ring by following the steps 3  
to 6 under “Storing Phone Numbers,  
Names, Distinctive Rings and Speed  
Dial” on page 17.  
3) Press DELETE.  
4) Press to move  
the pointer to “Yes”.  
5) Press SELECT/CH  
or DELETE. You  
3) Press SELECT/CH. You will hear a  
confirmation tone and “Done!” appears  
on the display.  
hear a confirmation  
tone. “Deleted!”  
appears in the display.  
 
26  
27  
CALLER ID  
YOU MUST SUBSCRIBE TO CALLER ID SERVICE TO  
USE THIS FEATURE.  
If any of the following occurs during Caller  
ID, operation will be canceled.  
• Press END. The phone will return to  
the standby mode (or the call will be  
disconnected).  
TIPS  
TIP  
When the telephone rings, the Caller ID  
feature allows you to view the caller’s name  
and phone number on the display before you  
answer the phone. Additionally, you can dial  
the displayed number and store the  
If you answer a  
call before the  
Caller ID  
message is  
received  
(Example: before  
the second ring),  
the Caller ID  
message will not  
appear.  
The headset LED  
will continue  
flashing during  
Talk Mode.  
• Press TALK/FLASH or DELETE.  
• Place remote in base.  
• Receiving an incoming call or page  
(from the standby mode only).  
• Receive a CIDCW (Caller ID on Call  
Waiting) (during a call only).  
information for memory dialing.  
Make sure you have turned on the Caller  
ID/Call Waiting feature. (See page 4.)  
Important:  
The total memory locations for Caller ID  
messages and Phonebook locations  
(including Speed Dials) is 100 in total. When  
the memory locations (Phonebook and Caller  
ID) is 100, new Caller ID messages will  
overwrite the oldest Caller ID messages.  
The idle time is 30 seconds. If the remote  
remains idle for 30 seconds, the phone will  
return to the standby mode (or back to the  
call).  
When a call is  
received via a  
telephone  
company that  
does not offer  
Caller ID service,  
the caller´s phone  
number and name  
do not appear.  
(This includes  
some international  
calls.)  
1) When the Caller ID message is received, the  
display shows the caller’s phone number  
along with the date and time. The incoming  
call information is stored in the Caller ID  
record. If the Caller ID service includes the  
caller’s name, the name will appear on the  
display. (up to 15 characters.)  
When the call  
is via a private  
branch exchange  
(PBX), the caller´s  
phone number  
and name may  
not appear.  
 
28  
29  
CALLER ID DISPLAYS  
VIEWING THE CALLER ID LIST  
You may receive any one of the following  
messages:  
When invalid data is received:  
“Incomplete Data”  
The Caller ID list stores information for  
TIP  
TIP  
incoming callseven unanswered calls. You  
can store 100 of the Caller ID messages and  
Phonebook locations (including Speed Dials)  
in total. You can view the Caller ID list during a  
call or when the phone is in the standby mode.  
When you press  
DELETE during a  
call, the call will  
be placed on hold  
and you will hear  
a ring tone. To  
resume the call,  
press TALK/FLASH  
or DELETE. If the  
remote remains  
idle for 5 minutes,  
the phone hangs  
up and returns to  
the Standby  
The number of  
calls from the  
same Caller ID  
appears next to  
the received  
time. Once you  
have reviewed  
the new  
When a private name is received:  
“Private Name”  
1) Press CIDs.  
When a private number is received:  
“Private Number”  
The summary screen  
appears. The screen  
shows the number of new messages and  
the total number of messages.  
When a unknown name is received:  
“Unknown Name”  
message, the  
number will be  
cleared and  
2) View Caller ID messages by following the  
procedure below.  
When a unknown number is received:  
“Unknown Number”  
disappears.  
FROM NEW TO OLD:  
a.Press to display the latest Caller ID  
message.  
2) When you pick up the phone, the display  
changes to “Talk”.  
automatically. To  
end a call, press  
the END button.  
TIP  
(AutoTalk feature is set to On.)  
b. Press to see the previous message.  
Once you view  
the Caller ID list  
in alphabetical  
order, you  
cannot switch to  
the Caller ID  
display in  
historical order  
(from new to old  
or from old to  
new) unless you  
exit the  
FROM OLD TO NEW:  
a. Press to display the earliest Caller ID  
message.  
b. Press to see the next message.  
IN ALPHABETIC ORDER:  
Press the number keypad (29 and 0) to  
display the Caller ID messages in  
alphabetical order. Refer to the letters on the  
number keys to select the desired letter.  
3) Press CIDs (if you view the Caller ID list  
operation.  
during a call) or end.  
 
30  
31  
DELETING INFORMATION  
FROM THE CALLER ID LIST  
DELETING A CALLER ID MESSAGE  
USING THE CALLER ID MESSAGE LIST  
CALLING A PARTY FROM THE CALLER ID LIST  
TIPS  
FROM STANDBY MODE  
TIP  
1) Press CIDs. The  
summary screen  
You cannot  
1) While the incoming Caller ID information  
is displayed, press DELETE. “Delete  
Message?” appears.  
make a call from  
the Caller ID list  
if your phone is  
connected to a  
private branch  
exchange (PBX).  
Once the Caller  
ID data has  
been deleted,  
the information  
cannot be  
appears. The  
screen shows the number of new  
messages and the total number of  
messages.  
2) Press or to choose “Yes” or “No”.  
3) Press SELECT/CH  
retrieved.  
or DELETE.  
2) Use the number keypad (2–9 and 0), ,  
When a long  
distance call has  
been set, “1”  
appears in the  
display.  
or to view the Caller ID message list.  
WHEN THE POINTER IS AT Yes”: A tone  
sounds and the Caller ID message is  
deleted. The next or previous Caller ID  
message is then displayed.  
3) Press TALK/FLASH.  
The displayed phone  
number dials  
Talk  
8005551234  
automatically.  
FROM TALK MODE  
1) Press TALK/FLASH.  
If a call comes in  
via a telephone  
system that does  
not offer Caller  
ID service, no  
information is  
stored.  
WHEN THE POINTER IS AT “No”: The display  
returns to the Caller ID message.  
2) Press CIDs. The summary screen  
Deleting All Caller ID Names/Numbers  
1) Press CIDs.  
appears.  
3) View the Caller ID message you want  
to dial.  
2) Press DELETE.  
3) Press or to  
4) Press SELECT/CH. The displayed phone  
choose “Yes” or “No.  
number will be dialed.  
4) Press SELECT/CH  
or DELETE.  
WHEN THE POINTER IS AT Yes”: A tone  
sounds and all stored Caller ID messages  
are deleted.  
WHEN THE POINTER IS AT “No”: The display  
returns to the summary screen.  
 
32  
33  
CALL WAITING DELUXE FEATURES  
LONG DISTANCE CALLS AND  
AREA CODE SETTING/CANCELLATION  
Your CT12 gives you new options for Call  
TIPS  
TIPS  
Waiting. At the touch of a button, you can  
While the incoming Caller ID information is  
displayed, pressing /TONE will place or  
remove the prefix “1” in the display to set the  
call for a long distance call, or pressing # will  
set or cancel an area code. (See page 5.)  
place the caller on hold, send them to your  
To activate  
You cannot store a  
Caller ID message  
in the Phonebook  
if a phone number  
does not appear in  
the message.  
voice mail service, or conference them into  
features, select  
your current call. You may be required to  
“CW Deluxe  
subscribe to Call Waiting and Call Waiting  
On” in the  
Caller ID setup.  
See page 3.  
Deluxe to use these features. Not all  
features are available in all areas. Check  
with your local telephone company for  
details.  
STORING CALLER ID MESSAGES IN THE  
PHONEBOOK/ONE TOUCH DIAL  
Messages shown in the Caller ID list can be  
stored in the Phonebook. Using the  
incoming call information (i.e., Caller ID  
list), the phone number of the party on the  
Caller ID list can be stored in memory.  
You can also  
answer a waiting  
call immediately  
by pressing  
TALK/FLASH,  
the first caller  
will be placed on  
hold. To return  
to the original  
caller, press  
You cannot set the  
Distinctive Ring or  
Speed dial in this  
step. If you would  
like to set these  
options, edit the  
stored data.  
1) When you receive a Call Waiting call,  
press MENU/MUTE for a list of options.  
2) Press or , or the number keypad  
(17) to select an option. For example:  
1) When the phone is  
in the standby mode,  
while the incoming  
Caller ID information  
is displayed, press  
/tSPEED.  
Even if the  
memory locations  
are full, the  
message will  
be stored in the  
Phonebook,  
TALK/FLASH  
again.  
Press 4 times  
however, the  
message will be  
erased from the  
Caller ID List.  
2) Press or to  
choose “Store in  
PB?” (Phonebook  
locations) or “Store in  
SD?” (One Touch Dial location).  
To cancel Storing, select “Cancel”.  
Press 2 times  
If data is already  
stored in the One  
Touch Dial, the old  
data will be over-  
written by the new  
data.  
3) Press SELECT/CH. A confirmation screen  
3) Press SELECT/CH. You will hear a  
will appear.  
confirmation tone.  
 
34  
35  
MORE  
CHANGING THE DIGITAL SECURITY CODE  
The digital security code is an identification  
code used to connect the remote and the  
base unit. Normally, setting the code is not  
necessary. In the rare situation that you suspect  
another cordless telephone is using the same  
security code, you can change the code. To  
change the digital security code, deregister  
the code, then register a different code.  
REGISTER THE SECURITY CODE  
TIPS  
TIPS  
1) Unplug the AC adapter. Do not replace  
the remote to the base.  
You must  
complete the  
registration  
operation within  
30 seconds, or  
the phone  
returns to the  
standby mode.  
If you have not  
pressed any key  
for 30 seconds  
while in the de-  
registering  
operation, the  
phone returns  
to the standby  
2) Press and hold PAGE on the base, while  
you plug in the AC Adapter, hold page  
until the CHARGE/IN USE LED on the  
base flashes.  
3) Press TALK/FLASH. “Remote Registering”  
appears. When the registration operation  
is finished “Registration Complete”  
appears and the CHARGE/IN USE LED is  
no longer illuminated. You will hear a  
confirmation tone and the phone returns  
to the standby mode.  
DE-REGISTER THE SECURITY CODE  
mode.  
1) Remove the remote from the base. In the  
standby mode, press and hold DELETE  
and END for about 10 seconds until you  
hear a confirmation tone.  
During the  
registration  
If you receive  
an incoming  
call, page, or  
charge the  
remote while in  
de-registering  
operation,  
operation, you  
cannot receive  
an incoming call,  
page, or make  
a call.  
“De-Register?” appears.  
2) Press to select “Yes”, then SELECT/CH.  
You will hear a confirmation tone, and  
“Deregistration Complete” appears.  
or press  
TALK/FLASH  
or END, the  
operation is  
canceled.  
 
36  
37  
INSTALLING THE BELTCLIP  
NOTE ON POWER SOURCES  
TO ATTACH THE BELTCLIP  
OUT OF RANGE WARNING  
TIP  
TIP  
Insert the beltclip  
into the holes on  
each side of the  
remote. Press  
down.  
If you walk away from the base unit you will  
eventually exceed the maximum operating  
range for the CT12 cordless headset system.  
Any active call will be suspended and a  
double beep will sound in your headset  
every 10 seconds to warn you that you are  
out of range. The double beep will cease  
once you return within range and any active  
call will be taken off mute allowing you to  
resume your conversation.  
You can charge  
the remote with  
or without the  
beltclip.  
It is strongly  
advised that you  
avoid walking out  
of range when on  
an active call as  
you may find the  
call takes some  
time to re-  
TO REMOVE  
THE BELTCLIP  
Pull one side of the  
beltclip to release  
the tab from the  
hole.  
establish after  
returning into  
range.  
LOW BATTERY WARNING  
When the headset is running low (approx.  
5 minutes talk time remaining), an audible  
warning will be heard through the headset  
as a single beep repeating every 10  
seconds. Soon after hearing this warning,  
you should recharge the remote pack.  
 
38  
39  
GENERAL INFORMATION  
The phone complies with FCC Parts 15 and  
68. Operating temperature: 0 ºC to +50 ºC  
(+32 ºF to +122 ºF)  
BATTERY REPLACEMENT AND HANDLING  
When the operating time becomes short,  
even after a battery is recharged, please  
replace the battery. With normal usage,  
your battery should last about one year.  
TIP  
CAUTION  
If the remote is  
left off of the  
Use the specified  
battery pack  
(63421-01).  
AC ADAPTER INFORMATION  
AC Adapter part number:  
Input Voltage:  
63539-01 base, the actual  
120V AC 60Hz  
9V DC 350 mA  
Talk mode  
duration will  
be reduced  
respective to  
the amount of  
time the remote  
is off the base.  
WARNING:  
Do not remove  
the battery from  
the remote to  
charge it.  
Output Voltage:  
To avoid the risk of personal injury or  
property damage from fire or electrical  
shock, only use the battery model and  
adapter model specifically designated for  
this product.  
BATTERY INFORMATION  
Battery part number:  
Capacity:  
63421-01  
800 mAH, 3.6 V  
Never throw the  
battery into a  
fire, disassemble  
it, or heat it.  
Battery use time (per charge)  
From fully charged  
Talk mode duration:  
Standby mode duration:  
POWER FAILURE  
5.5 hours  
10 days  
During the period that the power is off, you  
will not be able to make or receive calls with  
the telephone.  
Do not remove  
or damage the  
battery casing.  
Recharge your phone on a regular basis by  
returning the remote to the base after each  
phone call. When the operating time  
becomes short, even after the battery is  
recharged, please replace the battery. With  
normal usage, the battery should last about  
one year.  
MAINTENANCE  
When slightly dirty Wipe with a soft, dry  
CAUTION  
Do not use  
paint thinner,  
benzene,  
cloth.  
When very dirty  
Wipe with a soft cloth  
that has been damp-  
ened with diluted,  
alcohol, or  
other chemical  
products. Doing  
so may discolor  
the surface of  
the telephone  
and damage  
the finish.  
Specifications, features, and availability  
of optional accessories are all subject to  
change without prior notice.  
neutral detergent. Dry  
with a dry cloth.  
When the charging Wipe with a dry cloth  
terminals  
become dirty  
or a pencil eraser, if  
necessary.  
 
40  
41  
TROUBLESHOOTING  
SYMPTOM  
SUGGESTION  
SYMPTOM  
SUGGESTION  
The remote doesn’t  
ring or receive  
a page.  
• The battery pack may be weak.  
Charge the battery on the base unit  
for 15 hours.  
• The remote may be too far away  
from the base unit  
• Place the base unit away from  
appliances or metal objects.  
• Change the digital security code  
(See page 37).  
The CHARGE/IN USE LED  
light won’t illuminate when  
the remote is placed  
in the base  
• Make sure the AC adapter is  
plugged into base and wall outlet.  
• Make sure the remote is properly  
seated in the base.  
• Make sure the charging contacts  
on the remote and base are clean.  
The audio sounds weak  
and/or scratchy.  
• Move the remote and/or base to a  
different location away from metal  
objects or appliances and try again.  
• Press SELECT/CH to help eliminate  
background noise.  
Severe noise interference.  
• Keep the remote away from  
microwave ovens, computers,  
remote control toys, wireless micro  
phones, alarm systems, intercoms,  
room monitors, fluorescent lights,  
and electrical appliances.  
• Make sure that you are not too far  
from the base.  
Can’t make or receive calls.  
• Check both ends of the base tele  
phone line cord.  
• Make sure the AC adapter is  
plugged into the base and wall  
outlet.  
• Disconnect the AC adapter for a  
few minutes, then reconnect it.  
• Change the digital security code  
(See page 37).  
• Make sure that you are not too far  
from the base.  
Move to another location or turn  
off the source of interference.  
The Caller ID does not display. • The remote was picked up before  
the second ring.  
• The call was placed through a  
switchboard  
• Call your local telephone company  
to verify your Caller ID service is  
current.  
• Make sure battery is charged.  
The remote doesn’t  
communicate with the base.  
• Change the digital security code  
(See page 37).  
The Plantronics Technical Assistance Center (TAC) is ready to  
assist you! Dial (800) 544-4660 x5538 Sunday 5P.M. through  
Friday, 5P.M. Pacific Time or visit the Support section of our  
website at www.plantronics.com. For accessibility information  
also call the TAC.  
 
42  
43  
PARTS & ACCESSORIES  
P/N  
DESCRIPTION  
AC ADAPTER  
P/N  
DESCRIPTION  
BELT CLIP  
64375-01  
63539-01  
64460-01  
BATTERY COVER  
64376-01  
64377-01  
BATTERY  
42157-01  
46186-01  
NECK STRAP/LANYARD  
REMOTE UNIT  
CT12 REPLACEMENT  
LEATHERETTE  
EAR CUSHION  
64378-01  
66523-01  
CT12 FIREFLY  
HEADSET  
45651-01  
CT12 REPLACEMENT  
EAR LOOP  
45650-01  
61764-01  
CT12 PIVOT BALL RING  
CT11 IN-THE-EAR  
HEADSET  
CT11 REPLACEMENT  
EAR CUSHIONS  
64406-01  
PRODUCT  
INFORMATION  
BOOKLET  
For information on spare parts and accessories,  
call Plantronics at (800) 544-4660 x5538, or  
visit the Plantronics website at www.plantronics.com  
 
44  
45  
INDEX  
0 - 9  
E – H  
10 ring options . . . . . . . . . . . . . 7  
Earpiece volume . . . . . . . . . QSG*  
General information . . . . . . QSG*  
Headset installation. . . . . . . QSG*  
Headset Volume . . . . . . . . . . . 11  
A
Area Code. . . . . . . . . . . . . . . . . 5  
AutoTalk . . . . . . . . . . . . . . . . . . 4  
L – O  
B
Language. . . . . . . . . . . . . . QSG*  
Maintenance . . . . . . . . . . . . . . 40  
Making a call. . . . . . . . . . . . . . . 6  
Message LED . . . . . . . . . . . . . 14  
Mute. . . . . . . . . . . . . . . . . . 8, 11  
One touch dialing . . . . . . . . . . 34  
Battery pack  
Preparing and charging . . QSG*  
Replacement and handling . . 40  
Beltclip . . . . . . . . . . . . . . . . . . 38  
C
Caller ID . . . . . . . . . . . . . . . . . 28  
Caller ID service . . . . . . . . . . 28  
Calling . . . . . . . . . . . . . . . . . 33  
Call Waiting . . . . . . . . . . . . . 35  
Deleting . . . . . . . . . . . . . . . . 32  
Setting . . . . . . . . . . . . . . . . . . 3  
Storing . . . . . . . . . . . . . . . . . 33  
Using . . . . . . . . . . . . . . . . . . 33  
Viewing . . . . . . . . . . . . . . . . 31  
Chain dialing. . . . . . . . . . . . . . 25  
Channel . . . . . . . . . . . . . . . . . 13  
P
Phonebook . . . . . . . . . . . . . . . 15  
Editing . . . . . . . . . . . . . . . . . 23  
Erasing . . . . . . . . . . . . . . . . . 24  
Making calls . . . . . . . . . . . . . 22  
Storing . . . . . . . . . . . . . . . . . 18  
Viewing . . . . . . . . . . . . . . . . 21  
R
Receiving a call . . . . . . . . . . . . . 6  
Redialing a call . . . . . . . . . . . . . 9  
Ringer volume . . . . . . . . . . . . . . 8  
D
Deluxe Call Waiting Features . . 35  
Dialing mode . . . . . . . . . . . QSG*  
Digital security code. . . . . . . 8, 41  
Distinctive Ringer . . . . . . . . . . . 23  
S
Setting up. . . . . . . . . . . . . . QSG*  
Base unit . . . . . . . . . . . . . QSG*  
Remote . . . . . . . . . . . . . . QSG*  
Speed dialing. . . . . . . . . . . . . . 23  
T – V  
Troubleshooting . . . . . . . . . . . . 42  
Voice Mail LED . . . . . . . . . . . . 14  
*Quick Start Guide  
 
345 Encinal Street  
Santa Cruz, California 95060  
(800) 544-4660  
© 2003 Plantronics, Inc. All rights reserved. Plantronics, the logo design,  
Plantronics and the logo design combined, and Firefly are trademarks  
or registered trademarks of Plantronics, Inc.  
Printed in USA. 64006-01 (2 04)  
 

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