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Phone Number Directory

: use this area to write down the names of the saved 

memory records. Remove transparent plastic cover to reach the blank list.
     

Memory

 Buttons (M1-M11 and Emergency): for saved numbers (see MEMORY 

STORAGE section for details).
     

SPKR

 (Speaker) Button: press SPKR to engage the speakerphone function; press 

again to turn the feature off. 
     

FLASH

 Button: use this button to engage the Call Waiting Caller ID functions 

(feature provided by local phone company). 
     

VOLUME

 Slider: move to right or left in order to increase or decrease the 

volume of the incoming voice.
     

BOOST/OSA 

Button: press BOOST to engage the extra amplification. In 

BOOST OFF mode, the phone has a volume range of up to 16dB of amplification. 

In BOOST ON mode, the phone has a volume range of up to 50dB of amplification. 

When active, the BOOST button is backlit. Press BOOST again to turn off the extra 

amplification. Press and hold the button for 3 seconds to engage the OSA function (to 

enhance the level of your voice). See OSA section for details.   

NOTE: when OSA is enabled, the light at the top of the phone turns orange when the 

phone is in a call.
     

TONE

 Switch: use this switch to pick one of the 4 tone setting available.

     

RD/P

 (Redial/Pause) Button: use this button to redial the last number dialed (up to 

32 digits). When in programming mode, press this button to insert a 2-second pause. 
     

HOLD/PROGRAM

 Button: during a call, use this button to put the call on hold; 

press the button again to release the call from hold. Use this button to program the 

memory keys during idle state or during a call. (see MEMORY STORAGE section for 

details). 
     

Low Battery

 Indicator: light turns on when the backup batteries are low.

     

Visual Ringer

 Lights: lights turn on and off when the phone rings.

     

Missed Call

 light: light turns on when there was an unanswered call. (Active when 

Missed Call switch is ON - located on bottom of phone). 
     

Voice Mail/Ringer/OSA

 light: 

a

. Light turns on 

GREEN

 when there is a 

voicemail left with your voicemail feature (from local phone company). 

b

. Light turns 

RED

 when the ringer switch is in the OFF position. 

c

. Light turns 

ORANGE

 when 

the OSA feature is active.

     (Ringer) TONE

: press this button to choose the desired incoming ring tonality. 

Choose one of the six (6) availble ring tones to select the most favorable ringer.

     (Ringer) /-

: press the keys to increase/decrease the volume of the 

incoming ring.

     (Ringer) ON/OFF

 switch: use this switch to turn the ringer on or off.  When the 

switch is set to OFF, the light at the top of the phone lights up 

RED

.

     Headset

 port: insert a standard headset (2.5mm plug) to use instead of handset.

     Outgoing Speech Amplification (OSA) switch

: use the switch to set the level 

of the outgoing speech amplification level. To enable/disable the OSA switch, press and 

hold the BOOST/OSA button for 3 seconds (see OSA section).

     Neckloop

 port: insert a standard neckloop (mono, 3.5mm plug) to use with your 

T-coil equipped hearing aid. We recommend the Clarity CE30 neckloop.

     Boost Override

 switch: set to ON if you wish for the BOOST function to be 

enabled at the beginning of all calls.

     Missed Call

 switch: set to ON if you wish to have the Missed Call light enabled.

      Voice Mail

 switch: set to ON if you wish for the light at the top of the phone to 

turn GREEN when you have a voice mail (service from your phone service provider).
     

Tone/Pulse

 switch: set this switch to the desired dialing method.

      Talk Keypad

 switch: set to ON if you wish to hear the numeric keys pressed 

during dialing - both in handset and speakerphone modes. NOTE:  “star” and “pound” 

keys are not spoken.

     BEDSHAKER

 port: insert the optional bedshaker (sold separately); it will vibrate 

to indicate incoming rings. 
   

LINE: 

see 

INSTALLING YOUR XL40D

 section. 

   

POWER PORT (9V,500mA): 

see 

INSTALLING YOUR XL40D

 section.

1

1

2

3

4

XL40D

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

3

2

4

5

6

7  

8  

9  

12  

10

11

13

ON   OFF

VOLUME

TONE

RINGER SETTINGS

+

-

Lo  Med  Hi

Outgoing Speech

Amplification (OSA)

Headset

Neckloop

SIDE VIEWS

Install the backup batteries (optional) by removing the battery cover as shown 
in Figure 1. Connect your telephone as shown in Figure 2. 
     

Connect one end of the phone cord into the (square) 

LINE

 port on 

the back of the phone; connect the other end of the phone cord into your wall 
telephone outlet.
     

Connect one end of the (curly) handset cord into the handset jack on 

the left side of your base; connect the other end of the handset cord into the 
bottom of the handset. Place handset in cradle.
     

Connect the DC adapter cord into the (round) 

DC 9V 500mA

 port 

on the back of your phone; plug the adapter into your wall electrical outlet. 
When finished, lift handset to test. If you hear a dial tone, your telephone is 
ready for use. If not, check all connections again.

FEATURE LIST AND OVERVIEW

14

15

16

17

18

19

    

ON

OFF

Talk

Keypad

ON

OFF

Boost

Override

Missed

Call

Voice

Mail

T

P

Tone/
Pulse

BOTTOM VIEW

24

23

22

21

20

WALL MOUNTING  YOUR XL40D

Figure 4

Figure 3

1.  Pull the handset hook out of the base and reverse its position so that the 
hook points up and will hold the handset when you hang up. See Figure 3
2.  Plug one end of the short flat telephone line cord into the jack marked 
LINE located on the back of the telephone. Then run the cord through the 
groove on the back of the phone. Insert the tabs of the mounting bracket into 
the slots in the back of the phone. Push the mounting bracket in and down 
firmly until it snaps into place. See Figure 4.
3.  Plug the flat telephone line cord into the wall plate jack, then align the 
mounting bracket’s keyhole slots with the wall plate studs and slide the base of 
the phone downward to secure it on the wall. See Figure 5.

INSTALLING YOUR XL40D

M1

M2

M5

M6

M7

M8

M9

M10

M11

M3

M4

1

2

3

ON

OFF

Talk

Keypad

ON

OFF

Boost

Override

Missed

Call

Voice

Mail

Remove battery cover using a 
thin object (like the tip of a pen) 
to push down the tab shown by 
the arrow above. 

BEDSHAKER

LINE

DC9V, 500mA

25

MEMORY STORAGE

BOOST FUNCTION - AMPLIFY INCOMING 

SOUNDS

1.  Press and hold the desired memory location (M1-M11 and Emergency) 
to store the number to.  The phone will beep to confirm you are in 
memory programming mode. See Figure 10.
2.  Enter the telephone number you wish to store (up to 31 digits). If no 
button is pressed within 30 seconds, the phone will time out and goes 
back to idle or talk mode.
3.   Press the Hold/Program button to save the desired number.  The phone 
will beep to confirm the number has been saved. See Figure 11.
4.   To change a Memory location, reprogram using the same procedure 
with the button to be changed. 

 

  1.  While on a call, press the BOOST button to engage the amplifier.  The 
XL40D has a BOOST button that controls the loudness of the receiver. See 
Figure 6. Once the BOOST button is pressed, an extra level of amplification 
is added over the entire range of the Volume Control. During a call, the 
BOOST button can toggle the Clarity Power function on or off according 
to the user’s needs. The BOOST button will reset automatically every time 
the phone is hung up for at least 5 seconds. The BOOST light will illuminate 
(blue) while the BOOST function is activated. 

Warning:  Volume may be at a high level. To protect hearing, lower 
the Clarity Power Volume Control before using the phone.

 

  2.  Adjust the VOLUME slider to achieve the desired sound level (up to 
50dB of amplification). The Clarity Power Volume Control adjusts the level 
of volume the handset both in Boost or non-Boost modes. The volume dial 
provides up to 16dB of volume before the BOOST button is activated. Once 
the BOOST button is pressed, the XL40D will provide up to 50dB of gain. 
See Figure 7. 
  3.  Adjusting the TONE switch allows you to customize your hearing 
experience. Since we all have different hearing preferences we suggest 
exploring each setting to find the one most comfortable for you. These four 
settings, along with our volume amplification, are part of the Digital Clarity 
Power (DCP™) technology. See Figure 8.  The available settings are:
        1- Low Frequency emphasis: best used to hear low pitched sounds;
        2 - Flat frequency response: best for hearing aid users;
        3 - Clarity Power/High frequency emphasis response: best used to   
        hear high frequency sounds;
        4 - Multi Band Compression with high frequency emphasis response:  
        best setting for speech intelligibility. 

1

2

3

4

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;HHLM

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LIDK

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OHENF>

Figure 6

1

2

3

4

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

Figure 7

1

2

3

4

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

Figure 8

Boost Override 

On the bottom of the XL40D, there is a Boost Override switch. When this is 
set to “ON” the Boost function is automatically enabled every time the phone 
is picked up. In standard use, when the Boost Override switch is set to “OFF” 
the Boost function will turn off after the phone is hung up. Setting this switch 
to “ON” is suggested if all the users of the phone need the amplification. 
Setting this switch to “OFF” is useful when people with varying hearing ability 
use the phone. See Figure 9. 

ON

OFF

Boost

Override

Figure 9

XL40

Figure 10

1

2

3

4

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

Figure 11

 To dial the saved numbers:   

 

 

 

 

 

 

    1. In handset mode, lift the handset and press the appropriate memory 
button.  
    2. In speakerphone mode, press the appropriate memory button with 
the handset in the cradle. 

 

CAUTION: VOLUME MAY BE LOUD. 

PROCEED WITH CARE.

Figure 5

If there is a power outage, the XL40D will maintain its full amplification for up 
to 48 hours with four AA alkaline backup batteries (not included).
The phone operates as a regular phone if there is no power or backup 
batteries. In this case, the indicator lights, the loud ringer, the lighted keypad 
and the amplification will be disabled; you will still be able to make and receive 
phone calls, but the extra amplification will not be enganged. We recommend 
installing batteries if you live in an area with frequent power outages.

TECHNICAL INFORMATION

Amplified dB Level: 

50dB/124 dBSPL

Tone control range: 

Full range: 300 to 3000Hz using one slide control.

Dimensions 

Size: 9 1/2” x 7” x 3 1/4” (24.13cm x 17.78cm x 8.25cm) 
Weight: 2.52 lbs. (1.14 kg) 

Power Requirements 

DC Adapter: 9VDC, 500 mA 
Batteries: 4 AA alkaline batteries (not included)

FEATURE LIST AND OVERVIEW

1

2

3

4

XL40D

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

USER GUIDE

XL40D

        TM

Amplified Telephone 

with DCP™

© 2007 Clarity, a division of Plantronics, Inc. All rights reserved. Amplifying your life, 
Clarity, the amplification device, Clarity and the amplification device combined, Clarity 
Professional, XL40D, Digital Clarity Power and DCP are trademarks or registered 
trademarks of Plantronics, Inc. 

 

 

 

 

 

 

 

Rev. D (02-09)   

1

2

3

4

XL40D™

HOLD/

PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

OSA

1

2

3

4

XL40D

HOLD/
PROGRAM

RD/P

BOOST

FLASH

SPKR

TONE

VOLUME

User Guide

E
N
G

 

Amplified Telephone

XL40D

     TM

OSA

CONTENTS & PARTS CHECKLIST

Your package includes all the items as shown here. If there is anything 
missing, please contact our Customer Care Department immediately. 

NOTE: PLEASE RETAIN A COPY OF PROOF OF PURCHASE 

FOR YOUR RECORDS.

User guide

Mounting bracket

Telephone line cords 

(one long cord and 

one short cord)

Handset coil cord

Handset

DC adapter

Base unit

OUTGOING SPEECH AMPLIFICATION (OSA)

This function amplifies your speech so it becomes louder to the person 
on the other end of the call. To enable this function, press and hold the 
BOOST/OSA button for 3 seconds (see figure 12). The phone beeps; the 
function can be enabled/disabled while on a phone call or in standby mode.   
To verify the function is active, lift the handset and check the light at the 
top of the phone. If the light is ORANGE, the function is active. To adjust 
the level of amplification for your voice, use the switch on the side of 
the phone labeled Outgoing Speech Amplification (OSA). You can choose 
between three levels: Low, Med and High (see Figure 13). 
To return to the default setting for your voice volume level, press and 
hold the BOOST/OSA button again for 3 seconds. You will hear a beep 
confirming that the function is disabled. To verify, the light at the top of the 
phone should not be orange when you are on a phone call.

NOTE: 

In order to experience the best audio quality for both parties 

during a call, we recommend you turn on this function only if your voice is 
too quiet. OSA is not active in speakerphone mode.

1

2

3

4

AHE=(

IKH@K:F

K=(I

;HHLM

?E:LA

LIDK

MHG>

OHENF>

Figure 12

Lo  Med  Hi

Outgoind Speech 

Amplification (OSA)

Headset

Neckloop

Figure 13

Figure 1

Figure 2

SECTION 1

SECTION 2

SECTION 3

SECTION 4

SECTION 5

BACK VIEW

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12

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14

Clarity, a Division of Plantronics, Inc.  
 

       

 

 

4289 Bonny Oaks Drive, Suite 106 
Chattanooga, TN 37406    
1-800-552-3368    

 

 

 

       

 

 

 

www.clarityproducts.com 

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