background image

Headset Jack

MESSAGE WAITING Indicator*

Caller ID* and  Display

TALK/FLASH Key

 

(phonebook)/    

(left 

cursor)/ SPEED (Speed Dial) Key

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1

CT11/12

 

C

ORDLESS 

T

ELEPHONE 

H

EADSET 

S

YSTEM

For more technical features, see the Product Information Booklet at our website www.plantroncs/documentation/

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3.4

3.3

3.2

CT11 and CT12

E

XAMINE THE 

C

OMPONENTS OF THE 

CT11/12 S

YSTEM

BASE 

Back View

Front View

Top View

TELEPHONE REMOTE

CT12 CONVERTIBLE HEADSET

               with Firefly

TM

Over-the-Ear 
Configuration

Front View

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6

Install Battery 
Pack

1.1 

Squeeze open 

the latch on the 
Remote Battery 
Compartment 

Cover      and lift the cover.

1.2

 Connect the Battery Pack 

     connector using the 
correct polarity. Do not force. 
Plastic connectors will fit in 
only one way.

1.3

Insert battery pack into 

the battery compartment. 
Do not let wires hang out, 
tuck them in.

1.4

 Insert tabs of cover into 

slots and push down to 
securely close the cover.

Back View

Set Up the Base 

2.1

 Connect the AC adapter power cord 

to the base and an active AC outlet.

2.2

 Route the power cord as shown in 

the detail drawing allowing clearance 
for the telephone plug to be inserted.

2.3

Insert the remote into the charging cradle on 

the base. Charge for 15 hours. The CHARGE/ IN 
USE indicator      light will go on.

2.4

Raise Base Antenna      to a vertical 

position.

2.5

Once the remote is fully charged, plug 

one end of the telephone cord into the base 
and plug the other end into an active 
telephone outlet.

Black

Red
White

BLACK

noir

RED

rouge

WHITE

blanc

Install CT11 Headset 

Mount headset and point 
boom toward mouth. 

Install CT12 Headset 

Your Convertible Headset can be 
configured for over-the-ear or over-the-
head use.

For over-the-ear use

3.1

 Press the headset to your ear, then 

loop the Earloop      behind the ear as 
shown.

3.2

 Adjust the tip of the Microphone 

Boom      toward the corner of your 
mouth.

3.3

 Plug the headset cord into the 

2.5mm jack on the top of the remote.

3.4

  Route the cord through the 

handset’s cord retainer slot.

Or over-the-head use

3.5

 Place the headset on your head so 

the speaker covers your ear.

3.6

 Adjust the tip of the microphone 

boom toward the corner of your 
mouth.

3.7

 Repeat 3.3 and 3.4

3.5

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 DOWN Key

 UP Key

*

 TONE Key

Remote Charging 
Contacts

END Key

CID (Caller ID)*/    
(right cursor) Key

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Over-the-Head

Configuration

In-the-Ear Headset

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MENU/MUTE Key

SELECT/CH 
(channel) Key

DELETE Key

PAUSE/REDIAL Key

# Key

Remote Battery 
Compartment Cover

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AC Adapter

 

(not shown)

Battery Pack

 

(not shown)

Telephone Cord 
(not shown)

Belt Clip

Headset Assembly

Ear Cushion Assembly

Adjustable Headband

Microphone Boom

Clothing Clip

Cord

2.5 mm Plug

Firefly In-use Indicator

Cord Retainers

Earloop, Flexible 

Thumb Loop

Pin for Pivot Ball 
Ring Hole

Pivot Ball Ring

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LOCATION CONSIDERATIONS

1. Locate the system in a central part of your 

working area near a phone and a power outlet.

2. Do not locate it near a computer, microwave, or other 

electronic devices such as TV’s and other cordless devices. 

3. Do not locate it near heat sources, noise sources, 

excessive moist environments, dusty environments, 

and mechanical vibration environments.  

BASE 

TELEPHONE REMOTE 

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CONVERTIBLE HEADSET

Also supplied:

5

5.1

Make and Receive Test Calls

With your headset mounted from Step 3 
and any required setting changes made 
from Step 4, prepare to make your first call.

5.1

 

To make your first call

 

1. Remove remote from its base.
2. In the standby mode, dial the number as you 
would on an ordinary phone.
3. Push the Talk/Flash key. After about two 
seconds you will hear the number being dialed.
4. Talk once you connect.
5. Adjust the listen volume to Low, Medium, High, or 
Maximum for your hearing comfort using the 

 or 

 keys. 

6. Press the End key to disconnect and hang up the call.

5.2

 

To redial

 

1. In the standby mode, press the PAUSE/REDIAL key      
once. The last number dialed will be displayed on the screen.
2. Press the Talk/Flash key to dial it. 

Tips:

 

1)

 If the Talk/Flash key was pushed first and then you 

pushed the Pause/Redial key, the last number dialed will be 
immediately redialed. 

2)

 The Pause/Redial key will store your 

last three numbers dialed.

5.3

 

To answer a call

1. Press the Talk/Flash key and begin talking.
2. Press the End key to disconnect and hang up the call.

5.4

 

To mute a call

1. Press and hold the Menu/Mute key for 

3 full seconds

You will hear an activating beep and see Mute on the display.
2. Press the mute button to toggle off mute. 
3. Press the End key or put the remote back into the base 
charging cradle to disconnect and end the call. 

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2

Base Antenna/ Headset 
Holder

CHARGE/IN USE Indicator

PAGE key

DC Power Input

Telephone Line Jack 

*Must be activated through your local phone company.

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1.1

1.2

1.3

1.4

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4

Make Basic Setting Changes,

if necessary

4.1

 

Language option

The default language is English. 
To change to French or Spanish:

1. When in Standby mode**, press the MENU/MUTE      key.
2. Press the 

▲ 

or 

▼ 

key to move the pointer to language of 

choice.
3. Press the SELECT/CH      key to select language.  
4. Press the END      key to exit.

4.2

 

Dialing mode option

Most phone systems use tone dialing, which sends DTMF 
tones through the phone lines. However some phone 
systems in rural areas still use pulse dialing. The default 
setting is tone dialing. 
To change the dialing mode:
1. When in Standby mode**, press the Menu/Mute key.
2. Press the 

▲ 

or 

▼ 

key to move the pointer from Tone 

Dialing to Pulse Dialing. 
3. Press the Select/Ch key to select the dialing mode.
4. Press the End key to exit.

**

Standby mode –

The remote is not in use, it is off the 

base, and the TALK/FLASH       key has not been pressed. 
A dial tone is not heard and the display is blank. 

This standby mode is starting point for most activity. 

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CT11 HEADSET

Headset 
Speaker

FlexGrip

®

 

Earloop

Adjustable 
Microphone 
Boom

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3.1

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3.6

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