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Congratulations

on purchasing your new VTech product.  

Before using this product, please read 

Important safety instructions

.

This manual has instructions on how to 

set up and register your new handset. For 

instructions on using the handset, see the 

Abridged user’s manual that came with your 

telephone base. 

What’s in the box

Your product package contains the following 

items. Save your sales receipt and original 

packaging in the event warranty service is 

necessary. 

Install the battery

Install the battery as shown below.

NOTES

Use only supplied battery.
If the handset will not be used for a long time, 

disconnect and remove the battery to prevent 

possible leakage.


Connect

Connect the charger

NOTES

Use only the adapters provided.
The adapters are intended for a vertical or floor 

mount position. The prongs are not designed to 

hold the plug in place if it is plugged into a ceiling, 

under-the-table, or cabinet outlet.

Charge the battery

Once you have installed the battery, the 

battery indicators show the battery status  

(see the following table).

NOTES

For best performance, keep the handset in the 

charger when not in use.
The battery is fully charged after 12 hours of 

continuous charging.


The following table summarizes the battery 
charge indicators and actions to take.

Battery 

indicators

Battery status

Action

The screen 
is blank, or 
shows 

Place 

in charger

 

and   
flashes.

The battery 
has no charge 
or very little 
charge. The 
handset cannot 
be used.

Charge without 
interruption  
(at least  
30 minutes).

The screen 
shows 

Low 

battery

 and 

 flashes. 

The battery has 
enough charge 
to be used for a 
short time.

Charge without 
interruption  
(at least  
30 minutes).

The screen 
shows  

HANDSET X

.

The battery is 
charged.

To keep the 
battery charged, 
place it in the 
telephone base 
or charger when 
not in use.

Before use

Add and register a handset

You can add new 

VC7100A

 cordless handset 

to your 

VC7151-202A

 series telephone 

system, Your telephone system supports a 

maximum of five handsets. 
Register each handset with the telephone 

base before use. After charged, each 

expansion handset alternately displays  

To register HS, see manual.

.  

Charge the handset for at least 30 minutes 

before registering it to the telephone base.

To register a handset:

Place the new/non-registered handset 

in the telephone base. The handset and 

telephone base show 

Registering... Please 

wait

.

The handset and telephone base show 

HANDSET X registered

 and you hear a beep 

when the registration process completes. The 

registration process takes about 90 seconds to 

complete.

Deregister all handsets

To replace a handset or reassign the 

designated handset number of a registered 

handset, you must deregister all handsets and 

then individually register each handset.

To deregister all handset:

Press and hold 

/FIND HANDSET

 on the 

telephone base for about 10 seconds, 

when the telephone base shows 

Deregister all devices?

Press 

YES

 or press 

/FIND HANDSET

 

again within 2 seconds.

The telephone base shows

 Deregistered all 

devices

. All handsets show

 To register HS, 

see manual.

 when the deregistration process 

completes. The deregistration process takes 

about 10 seconds to complete.

Check for dial tone:

Press   or 

 

on the handset or   on the 

telephone base. If you hear a dial tone, the 

installation is successful.

If you do not hear a dial tone:

Make sure the installation procedures 

described above are properly done.
It may be a wiring problem. If you have 

changed your telephone service to digital 

service from a cable company or a VoIP 

service provider, the telephone line may 

need to be rewired to allow all existing 

telephone jacks to work. Contact your 

cable/VoIP service provider for more 

information.

Operating range

This handset and telephone base can 

communicate over only a certain distance -  

which can vary with the locations of the 

telephone base and handset, the weather, and 

the layout of your home or office. 
When the handset is out of range, the handset 

displays 

Out of range OR

 

no power at 

base

 and 

Put HS on base to power base

 

alternately.
If there is a call while the handset is out of 

range, it may not ring, or if it does ring, the call 

may not connect well when you press   or  .

 

Move closer to the telephone base, and then 

press   or 

 

to answer the call. If the handset 

moves out of range during a telephone 

conversation, there may be interference. To 

improve reception, move closer to the 
telephone base.

1.

2.

VC7100A

Accessory handset

for use with

VC7151-202A series

User’s manual

User’s manual

1

3

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