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Quick start guide

LS6375-3 (LS6325-2 and IS6100)

Introduction
This quick start guide provides you with the basic installation 

and use instructions. A limited set of features are described in 

abbreviated form.
Please refer to the user’s manual for complete installation and 

operation instructions

.

Telephone base and charger installation

Install the telephone base and charger as shown below.

®

Telephone base

Telephone 

wall jack

Handset charger

Electrical outlet 

not controlled by 

a wall switch

If you have DSL 

high speed 

Internet service, 

a DSL filter (not 

included) is 

required.

Telephone 

line cord

Telephone base 

power adapter

Handset 

charger 

adapter

Use only the power adapters supplied with this product. 

Handset battery installation and charging

Install the handset battery as shown below. Once you have 

installed the handset battery, you may be able to make and receive 

short calls. For best performance, charge the handset battery 

continuously for at least 16 hours.

Headset charger installation

Install the headset charger as shown below.

Headset charger

Plug the small end of 

the headset charger 

power adapter into 

the power jack of the 

headset charger.

Plug the large end of the 

headset charger power 

adapter into an electrical 

outlet not controlled by a 

wall switch.

Power on the headset

Power on the headset before use. Place the headset in the headset 

charger or press and hold   for two seconds. The   light flashes 

three times in blue and you hear three beeps when the headset is 

being powered on.

Headset charging

Charge the headset as shown below. If the   light does not turn on 

while charging, you need to charge the headset without interruption 

for at least 15 minutes to give the headset enough charge to 

use for a short time. For best performance, charge the headset 

continuously for at least three hours.

Place the tip of 

the headset in 

the small cradle 

on the headset 

charger.

1.

The magnet holds 

the top of the 

headset in place. 

The   light turns on 

when charging.

2.

/FIND HANDSET

Page all system 

handsets and headset.

Message window
Shows the number  

of messages and  

other answering  

system information.

X/DELETE
Delete the message currently playing.
Press twice to delete all old messages 

when the telephone is not in use.

/ANS ON/OFF

Turn the 

answering 

system on or off.

/PLAY/STOP

Play messages.
Stop message playback.

/VOL and 

VOL/
Adjust the 

volume during 

playback.
Adjust the 

telephone base 

ringer volume 

when the 

telephone is not 

in use.

IN USE light
Flashes when there 

is an incoming call, 

or another telephone 

sharing the same 

line is in use.
On when the 

telephone is in use, 

or the answering 

system is answering 

a call.

/SKIP

Skip to the next message.

/REPEAT

Repeat a message or press 

twice to play the previous 

message.

Telephone base overview

Handset overview

Headset overview

MUTE/FLASH
Mute the microphone 

while on a call.
Press and hold to answer 

an incoming call when 

you receive a call waiting 

alert during a call.
Silence the ringer in the 

earpiece temporarily 

when the headset is 

ringing.

+/-/VOLUME
Adjust the 

listening volume 

while on a call.
Adjust the 

ringer volume 

when the 

headset is not 

in use.

Rotating clip
Connect the 

ear hook or 

head band.
RESET  

inset button

Microphone

Earpiece

(on/off)

Press and hold two seconds to power on or off.
Press to answer, end or join a call.
On in red when charging in the headset charger.
On in blue when fully charged in the headset charger.
Flashes once every 10 seconds in blue when in idle mode.
Flashes once every 10 seconds in red when in low battery mode.
Flashes twice every three seconds in blue while on a call.
Flashes quickly and alternately in red and blue while being registered.
Flashes four times every four seconds in blue when there is an 

incoming call.

CHARGE light
On when the handset 

is charging.

/ VOL  

(directory/volume)
Review the directory 

when the telephone is not 

in use.
Scroll up while in a menu.
Increase the listening 

volume during a call.

 (speakerphone)

Make, answer or join 

a call.
Switch between the 

speakerphone and 

handset during a call.

/FLASH

Make, answer or join  

a call.
Answer another incoming 

call during a call.

TONE 
Switch to tone dialing 

temporarily during a call.

1
Press repeatedly to add 

or remove 1 in front of a 

call log number before 

dialing or saving it in  

the directory.

REDIAL/PAUSE
Review the redial list.
Press and hold to insert a 

dialing pause while dialing 

or entering numbers.
MUTE/REMOVE
Mute the microphone during a call.
Delete the displayed entry while reviewing 

the call log, directory or redial list.
Silence the ringer temporarily while the 

handset is ringing.
Delete digits when predialing.

VOL/CID  

(volume/caller ID)
Review the call log 

when the telephone is 

not in use.
Scroll down while in  

a menu.
Decrease the listening 

volume during a call.
MENU/SELECT
Show the menu.
Select an item or save 

a setting while in a 

menu.
PUSH TO TALK (PTT)
Begin a one-to-one or 

one-to-all broadcast 

message.
OFF/CLEAR
Hang up a call.
Silence the ringer 

temporarily while the 

handset is ringing.
Press and hold to 

erase the missed call 

indicator when the 

telephone is not in use.
Return to the previous 

menu while in a menu.
Press and hold to 

return to idle mode 

while in a menu.

Dialing keys
Enter numbers 

or characters.

#
Press repeatedly to 

show other dialing 

options when reviewing 

a call log entry.

EQ

Change the audio quality 

during an outside call, 

intercom call, message or 

announcement playback.

Using the menu

To enter the handset menu:

Press 

MENU/

SELECT

 when the handset is 

not in use.
Press  /

VOL

 or 

VOL/CID 

until the  

> symbol displays next to the desired 

feature menu.
Press 

MENU

/SELECT to enter that menu.

To return to the previous menu, press 

OFF/CLEAR.
To return to idle mode, press and hold  

OFF/CLEAR.

Telephone settings

Default settings are indicated by asterisks (*).

1.

2.

3.

Screen display

Function

Options

LCD language

Set the screen display 

language.

English*
Français

Espa

ň

ol

Clr voicemail

Turn off the voicemail 

indicators.

Turn off indicator?

Key tone

Set whether the handset beeps 

whenever a key is pressed.

On*
Off

Set date/time

Set the date and time for the 

telephone system.

--:-- --/--

Home area code Set the home area code so 

that the call log stores only 

seven digits for local telephone 

numbers.

_ _ _

Dial mode

Set the handset to be tone dial 

or pulse dial.

Tone*

Pulse

Telephone operation

Make a call

Press  /

FLASH

 or 

 on the handset and 

then dial the telephone number. Press 

 on 

the headset to join the call and hang up the 

handset at any time.

-OR-

Predial by first dialing the telephone number 

and then press  /

FLASH

 or 

 on the 

handset. Press   on the headset to join the 

call and hang up the handset at any time.

Answer a call
Press   on the headset, or  /

FLASH

 or any of the dialing keys 

on the handset.

End a call

Press   on the headset or place the headset in its charger.
Press 

OFF/CLEAR on the handset or place the handset in the 

telephone base or its charger.

Redial
Each system handset stores the 20 most recently dialed numbers. 

When there are already 20 entries, the oldest entry is deleted to 

make room for the new entry.
To review and dial a number from the redial list:

Press 

REDIAL/PAUSE when the handset 

is not in use.
Press  /

VOL

 or 

VOL/CID

 or  

REDIAL/PAUSE repeatedly until the 

desired entry displays.
Press  /

FLASH

 or 

 to dial.

To delete a redial entry:
When the desired redial entry displays, press 

MUTE

/REMOVE.


1.

2.

3.

Plug the battery connector 

securely into the socket, 

matching the color-coded label.

1.

Place the battery with 

the wires inside the 

battery compartment.

2.

Slide the battery compartment 

towards the center of the 

handset until it clicks into place.

3.

Charge the handset in the 

telephone base.

4.

CHARGE light 

remains on 

when charging.

>Ringers
 Settings

The > symbol 

indicates the 

feature to select.

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