NEC AT-55M User manual

AT-55M USER GUIDE
GVT-053678-001
Issue 1.1
January, 2019
Caller ID Hands-Free Business Telephone

IMPORTANT NOTICE
i
IMPORTANT NOTICE
Liability Disclaimer
NEC Corporation reserves the right to change the specifications, functions, or features, at any time,
without notice.
NEC Corporation has prepared this document for use by its employees and customers. The
information contained herein is the property of NEC Corporation and shall not be reproduced without
prior written approval from NEC Corporation. All brand names and product names on this document
are trademarks or registered trademarks of their respective companies.
Copyright 2018-2019
NEC Corporation
Package Contents
Check the contents of package for the following items. If any item is missing or damaged, please
consult the dealer you purchased.

IMPORTANT NOTICE
ii
SAFETY INSTRUCTIONS
When using this telephone, basic safety precautions should always be taken to reduce
the risk of fire, electric shock, and injury to persons, by doing the following:
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. Do not use this product near water, for example, near a bathtub, wash bowl, kitchen sink,
or laundry tub, in a wet basement, or near a swimming pool.
4. Do not place this product on an unstable cart, stand, or table. The product may fall,
causing serious damage to the product.
5. Slots and openings in the cabinet and the back or bottom are provided for ventilation. To
protect it from overheating, these openings must not be blocked or covered. The
openings should never be blocked by placing the product on a bed, sofa, rug, or other
similar surface. This product should never be placed near or over a radiator or heat
register. This product should not be placed in a built-in installation unless proper
ventilation is provided.
6. Never push objects of any kind into this product through cabinet slots as they may touch
dangerous voltage points or short out parts that could result in a risk of fire, electric
shock, or damage to the product itself. Never spill liquid of any kind on the product.
7. To reduce the risk of electric shock, do not disassemble this product. The product should
be taken to a qualified service agent if service or repair work is required. Opening or
removing covers may expose you to dangerous voltages or other risks. Incorrect
reassembly can cause electric shock when the product is subsequently used.
8. Avoid using a telephone during an electrical storm. There may be a remote risk of electric
shock from lightning.
9. Do not use the telephone to report a gas leak in the vicinity of the leak.
10. Please keep this unit away from equipment that uses radio waves or microwaves, (e.g. a
portable radio or microwave oven). These may cause improper operation.
11. The maximum level setting for the Receive Volume Control should only be used by
hearing impaired individuals, otherwise hearing damage may occur.

FACE LAYOUT, KEY AND PARTS
iii
TABLE OF CONTENTS
IMPORTANT NOTICE ................................................................................................................i
FACE LAYOUT, KEY AND PARTS ..........................................................................................1
INSTALLATION .........................................................................................................................3
Installing the Batteries................................................................................................................... 3
Connecting the Telephone Network.............................................................................................. 4
Wall Mounting................................................................................................................................ 5
INITIAL SETUP..........................................................................................................................7
Setting the Calendar...................................................................................................................... 7
Setting the LCD Contrast .............................................................................................................. 7
Selecting the Ringing Volume....................................................................................................... 7
Selecting the Ringing Tone........................................................................................................... 7
Selecting the Dialing Mode ........................................................................................................... 8
Setting the Flash Time .................................................................................................................. 8
Setting the PBX DIAL Code.......................................................................................................... 8
BASIC OPERATION..................................................................................................................9
Making a Call using the Handset .................................................................................................. 9
Making a Call using Speakerphone .............................................................................................. 9
Receiving a Call using the Handset .............................................................................................. 9
Receiving a Call using Speakerphone........................................................................................ 10
Switching between Handset and Speakerphone ........................................................................ 10
FEATURES ..............................................................................................................................11
FLASH Key.................................................................................................................................. 11
PAUSE Key................................................................................................................................. 11
Last Number Redial .................................................................................................................... 11
Memory Redial............................................................................................................................ 11
Microphone Mute ........................................................................................................................ 12
Message Waiting Lamp............................................................................................................... 12
Temporarily Switching Pulse to Tone Dialing.............................................................................. 12
Call Hold...................................................................................................................................... 12
One-Touch Dialing ...................................................................................................................... 13
Caller ID (CID)............................................................................................................................. 14
TROUBLESHOOTING.............................................................................................................15
Troubleshooting Guide................................................................................................................ 15
Care and Maintenance................................................................................................................ 15
Stored data management............................................................................................................ 15
SPECIFICATIONS ...................................................................................................................16
QUICK REFERENCE...............................................................................................................17
Feature Access Code.................................................................................................................. 17
Stored Data in the Telephone..................................................................................................... 17
Operations................................................................................................................................... 18

FACE LAYOUT, KEY AND PARTS
1
FACE LAYOUT, KEY AND PARTS
The following figures show the locations of key and parts of telephone.
(
17
)
(
18
)
(
19
)
(
20
)
(
21
)
(
22
)

FACE LAYOUT, KEY AND PARTS
2
No. Name Function
(1) Call Indicator/
Message Waiting Lamp Flashes to indicate an incoming call arrival. Also, indicate when messages have been received and notified by PBX system control.
(2) LCD Display Shows calendar and various information.
(3) Search Key Select IN /OUT history and scroll the call record.
(4) Delete Key Delete last digit of telephone number displayed on LCD or delete the
call history record.
(5) IN USE LED Used to indicate the telephone is in use.
(6) 10 One-Touch Keys Dial memory keys stores the telephone number frequently dialed.
(7) Dial Keys Dial keys on telephone keypad, including * and #.
(8) PBX DIAL/SET TIME Key Used to enter clock setting mode and for Dialing behind a PBX.
(9) FLASH/PAUSE Key FLASH: Used to disconnect the line and retrieve it, or to access special
network functions.
PAUSE: Used to provide the pause digit required by many PBX
systems.
(10) REDIAL Key Used for redialing the last number you dialed.
(11) MUTE Key Temporally switches off the handset and speakerphone microphone.
(12) SPEAKER Key Enables to make/answer a call, converse and hang-up without lifting the
handset.
(13) HOLD Key Enables to put your call on hold.
(14) Microphone Picks up your voice when using the Speakerphone feature.
(15) Speaker
Enables you to listen to the other party when using the speakerphone feature.
(16) VOLUME Key Adjust the volume of the built-in speaker, LCD contrast. Scroll the call
record.
(17) Handset Volume Control Adjusts the volume of the handset.
(18) Line Socket Used to connect with your local telephone network.
(19) Ringing Volume Switch Sets the volume of the ringer.
(20) Battery Compartment Installed 3 AA batteries to this area.
(21) Handset Socket Used to connect handset with telephone.
(22) Dialing Mode Switch
Sets the dialing mode of the telephone (DTMF or DP).
The following figure shows the information displayed on LCD.

INSTALLATION
3
INSTALLATION
Installing the Batteries
Install three high quality AA size batteries with following steps.
(Alkaline batteries (LR6) are recommended.)
1. Loosen the screw on the battery compartment cover.
2. Open the battery compartment cover.
3. Set Power Supply switch to “BATT”.
4. Insert three batteries.
5. Close the compartment cover and secure the screw.
IMPORTANT
Disconnect telephone line cord before removing battery cover to replace the batteries.
The battery life is as follows. (Use of alkaline batteries is recommended).
Alkaline batteries (LR6): Approx. 6 months
* Battery life may depend on operating conditions and ambient temperature.
When the low battery indicator appears on the LCD, replace all batteries immediately.
Use only new batteries of the specified size and type and never mix new and old batteries.
Use batteries of the same type and do not mix different type of batteries.
Do not use nickel-cadmium batteries.
Do not recharge, disassemble, mutilate, wet or incinerate batteries.
Keep batteries out of reach of children.
NOTE
The following functions do not operate without battery power:
Telephone display
Speaker Key function (From idle)
Storing One touch dial, setting flash time, setting ring tone, setting hold tone, setting trunk access code

INSTALLATION
4
Connecting the Telephone Network
Connect the telephone with telephone network with following steps.
1. Connect the one end of the line cord to the LINE socket on the rear of telephone and the
other end to your telephone network outlet.
2. Lay the handset cord in the groove on the bottom of the telephone.
IMPORTANT
Do not connect with the public telephone network directly. This telephone is manufactured for
connection to the line provided by the KTS/PBX systems.
Do not connect other analog devices such as FAX/telephone on the same line. Since this telephone is a
Caller ID terminal, parallel connection on the same line is not guaranteed.
If the other analog terminal is connected to the same line with this telephone, this telephone does not
operate properly.
The Caller ID receiver of KTS/PBX systems shall be set to FSK mode. This telephone is not supported
Caller ID with DTMF signaling.
NOTE
For the best speakerphone performance, avoid to using telephone in the following environment. Otherwise,
low speaker volume or poor voice quality may occur.
Areas with high background noise. (The microphone might pick up these sounds and prevent the
speakerphone from going into receiving mode when you finish talking.)
Surfaces affected by vibration.
Recessed areas such as in a corner, inside a cupboard, or next to a cabinet, which can generate an echo
effect.
Do not place objects near the microphone of the telephone, otherwise hands-free calls may not be
optimally performed.
If the line condition is poor quality the speakerphone may not operate properly.

INSTALLATION
5
Wall Mounting
This telephone can be mounted on a wall with two screws. The screws shall be supplied by
customer.
1. Mark off the correct positions for the screws, 83.5mm apart vertically before drilling the
wall.
2. Install the screws into the wall.
3. Mount the telephone on the wall so that the screw heads insert into the slots on the
underside of the telephone.
4. Remove the hanger hook from the telephone, and then reverse it and reinsert to the
telephone.
Pull up Reverse and Pull down

INSTALLATION
6
5. If you wish to temporarily place the handset down during a conversation, hook the handset
onto the top of the hanger hook as shown below.