Full Text Searchable PDF User Manual
AT-50 USER GUIDE
GVT-053680-001
Issue 2.0
December, 2018
Caller ID
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
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.
iii
TABLE OF CONTENTS
IMPORTANT NOTICE............................................................................................................ i
FACE LAYOUT, KEY AND PARTS ...................................................................................... 1
INSTALLATION .................................................................................................................... 3
Connecting the Telephone Network .............................................................................................. 3
Wall Mounting ................................................................................................................................ 3
INITIAL SETUP ..................................................................................................................... 5
Setting the Calendar ...................................................................................................................... 5
Setting the LCD Contrast .............................................................................................................. 5
Selecting the Ringing Volume ....................................................................................................... 5
Selecting the Ringing Tone ........................................................................................................... 5
Selecting the Dialing Mode............................................................................................................ 6
Setting the Flash Time .................................................................................................................. 6
Setting the PBX DIAL Code .......................................................................................................... 6
BASIC OPERATION ............................................................................................................. 7
Making a Call using the Handset .................................................................................................. 7
Receiving a Call using the Handset .............................................................................................. 7
FEATURES ........................................................................................................................... 8
FLASH Key .................................................................................................................................... 8
PAUSE Key ................................................................................................................................... 8
Last Number Redial....................................................................................................................... 8
Memory Redial .............................................................................................................................. 8
Microphone Mute........................................................................................................................... 9
Message Waiting Lamp ................................................................................................................. 9
Temporarily Switching Pulse to Tone Dialing ................................................................................ 9
Caller ID (CID) ............................................................................................................................. 10
TROUBLESHOOTING .........................................................................................................11
Troubleshooting Guide ................................................................................................................ 11
Care and Maintenance ................................................................................................................ 11
SPECIFICATIONS ...............................................................................................................12
QUICK REFERENCE ...........................................................................................................13
Feature Access Code .................................................................................................................. 13
Stored Data in the Telephone ..................................................................................................... 13
Operations ................................................................................................................................... 14
FACE LAYOUT, KEY AND PARTS
1
FACE LAYOUT, KEY AND PARTS
The following figures show the locations of key and parts of telephone.
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)
Dial Keys
Dial keys on telephone keypad, including * and #.
(7)
PBX DIAL/SET TIME Key
Used to enter clock setting mode and for Dialing behind a PBX.
(8)
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.
(9)
REDIAL Key
Used for redialing the last number you dialed.
(10) MUTE Key
Temporally switches off the handset.
(11) VOLUME Key
Adjust the volume of the LCD contrast. Scroll the call record.
(12) Handset Volume Control
Adjusts the volume of the handset.
(13) Line Socket
Used to connect with your local telephone network.
(14) Ringing Volume Switch
Sets the volume of the ringer.
(15) Handset Socket
Used to connect handset with telephone.
(16) 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
Connecting the Telephone Network
Connect the telephone to the 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.
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.
INSTALLATION
4
4. Remove the hanger hook from the telephone, and then reverse it and reinsert to the
telephone.
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.
Pull up
Reverse and Pull down
INITIAL SETUP
5
INITIAL SETUP
Setting the Calendar
This telephone is equipped with a calendar showing Year/Month/Day/Hour/Minute. The calendar is
shown on the display while the phone is idle. Set the calendar with the following steps.
NOTE
When the telephone receives an incoming call the time and date will automatically be overwritten with the
system time and date.
1. Ensure the phone is idle.
2. Hold the SET TIME key for approx. 2 seconds until the year appears flashing on the
display.
3. Advance up or down to the correct year by pressing the
△
or
▽
keys.
4. Press the SET TIME key to set the year and advance to the Month.
5. Repeat this process to set the Month, Date, Hour and Minute.
Setting the LCD Contrast
There are 6 display contrast settings.
1. Ensure the phone is idle.
2. Press VOLUME repeatedly to set the desired LCD contrast.
Selecting the Ringing Volume
Select from three ringing volume levels using the Ringing Volume Switch
on the rear of telephone, L
(low), M (mid), or H (high).
Selecting the Ringing Tone
There are 3 ringing tones to choose from – low, mid and high pitch.
1. Ensure the phone is idle.
2. Dial * 1 *.
3. Dial 1 (low), 2 (mid) or 3 (high). (Default setting is 1.)
4. Dial #.
After the setting is completed, the ringing tone (e.g.tone1) is shown on the LCD for 2 seconds.
NOTE
If the KTS/PBX system is set the ringing signal interval less than 0.5 second, the ringer sound may not be
followed by the setting timing.
INITIAL SETUP
6
Selecting the Dialing Mode
Set the Dialing Mode Switch on the rear of the telephone to either DP (Pulse) or MF (Tone) to select
the signaling type. The signaling type depends on the requirements of the PBX to which the
telephone is connected.
Setting the Flash Time
The correct hook flash timing depends on the requirements of the PBX to which the telephone is
connected.
1. Ensure the phone is idle.
2. Dial *41 *.
3. Dial 00 to 06 to select from the following hook flash timings.
00: 95ms
01: 100ms
02: 120ms
03: 180ms
04: 270ms
05: 300ms
06: 600ms (Default)
4. Dial #.
5. After the setting is completed, the setting time (e.g.300) is shown on the LCD for 15
seconds.
Setting the PBX DIAL Code
When this telephone is installed as a PBX extension, a trunk access code is often required to
precede external numbers that are dialed. The PBX DIAL key can automatically insert the PBX
trunk access code at the front of a dialed number, when dialing from the IN List (Caller ID), or
Preview Dialing.
The PBX trunk access code may differ from site to site, according to how the PBX is configured. Set
the PBX DIAL code with following steps.
To set or change the PBX DIAL code:
1. Ensure the phone is idle.
2. Dial * 0 *.
3. Dial the PBX trunk access code 0 to 9. (Default=not assigned.)
4. Dial #.
To clear the PBX DIAL code:
1. Ensure the phone is idle.
2. Dial * 0 * #.
BASIC OPERATION
7
BASIC OPERATION
Making a Call using the Handset
1. Pick up the handset and wait for dial tone.
2. Dial the desired number.
3. Replace the handset when you finish the call.
Or, to preview the dialed number:
1. Dial the desired number with handset on-hook.
2. You may press the DELETE key to erase dialed digits one at a time.
3. When you have finished dialing, lift the handset.
4. Replace the handset when you have finished the call.
NOTE
Adjust the volume if needed using the Handset Volume Control Switch.
Receiving a Call using the Handset
1. Lift the handset when the phone rings.
2. Converse with your caller.
3. Replace the handset when you finish the call.
NOTE
Adjust the volume if needed using the Handset Volume Control Switch.
FEATURES
8
FEATURES
FLASH Key
The FLASH key works the same as the hook switch of the phone. When the FLASH key is pressed
during a conversation, it may terminate the call or place the call on hold and you will hear dial tone
allowing you to dial the next phone number. The FLASH key may also provide access to special
facilities such as call waiting and conference calls. Actual operation will depend on the specific PBX
to which you are connected.
To activate, press the FLASH key
PAUSE Key
The PAUSE key is used to insert a 3.6 second pause between digits during dialing. For automatic
dialing (Redial), the pause may be needed in the dialing sequence to wait for dial tone or a
computer tone (such as computer activated operations like banking and voice mail). A pause can be
programmed into any memory location.
To activate, press the PAUSE key when required during dialing.
You may press the PAUSE key multiple times for a longer pause.
Last Number Redial
The last telephone number dialed (up to 32 digits) can be redialed automatically by pressing the
REDIAL key.
1. Pick up the handset.
2. Press the REDIAL key.
You can re-dial the same telephone number as many times as required. However, once you dial
another number, the previous number is erased. (Only the last number you dialed will be stored in
the REDIAL key).
Memory Redial
The last 10 telephone numbers dialed (up to 21 digits each) are stored in the Outgoing Call Memory.
To dial from the Outgoing Call Memory:
1. Press the SEARCH key until the OUT icon is shown on the display.
2. Advance up or down to search phone number you wish to dial by pressing the
▽
or
△
keys.
3. When the desired phone number is displayed, press the PBX DIAL key, or lift the handset.
Dialing starts automatically.
4. Press the DELETE key to remove the displayed number from the list.
FEATURES
9
Microphone Mute
The MUTE key allows you to switch off the handset temporarily. During this state, you can consult
with another person and your voice will not be sent to the called party.
To mute the call so that the called party cannot hear you:
1. Press the MUTE key. The MUTE key LED will light up.
To cancel Mute and resume normal conversation:
1. Press the MUTE key. The MUTE key LED will go out.
Message Waiting Lamp
Some PBX systems offer a visual message waiting indication. The message waiting lamp is turned
on when there is a message left for you. This lamp also flashes while the phone is ringing to indicate
an incoming call.
Temporarily Switching Pulse to Tone Dialing
If your telephone is connected to a Pulse dialing mode network, this feature allows you to
temporarily switch to Tone dialing to access Tone operated services; e.g. answering machines,
telephone banking, etc.
1. Dial the number of the service you wish to use and wait for answer.
2. Dial * to switch to Tone dialing.
3. When you hang up, the phone automatically returns to Pulse dialing mode.
FEATURES
10
Caller ID (CID)
This telephone will display Caller ID (CID) information received with incoming calls. The last 30
Caller ID numbers received are automatically stored in CID memory (up to 21 digits each). The
numbers stored in CID memory may be reviewed, deleted, or dialed back if desired.
When a new call is received with CID and goes unanswered, the NEW icon will flash. The number
of new (unanswered) calls received with CID is indicated on the bottom row of the display. The
NEW icon and number of unanswered calls will disappear after confirming CID by SEARCH key.
Note that the oldest call in the list occupies position 01 and new calls are stored at the end of the
list.
When CID is restricted by the caller, “NO CID” is displayed. For international and payphone calls,
“OUT OF AREA” is displayed.
To Preview the CID Memory:
1. Press the SEARCH key until the “IN” icon is shown on the display.
2. Advance up or down to review received CID numbers by pressing the
△
or
▽
keys. To
view the most recent NEW CALL, press the
▽
key.
3. Press the DELETE key to remove the displayed number from the list.
To Dial Back from the CID Memory:
1. Press the SEARCH key until the “IN” icon is shown on the display.
2. Advance up or down to the phone number you wish to dial by pressing the
△
or
▽
keys.
3. When the required phone number is displayed, press the PBX DIAL key,
or lift the handset.
The number is automatically dialed.
TROUBLESHOOTING
11
TROUBLESHOOTING
Troubleshooting Guide
Problem
Solution
No dial tone /Will not dial out
Check that the hook switch is not depressed.
Check that the line cord is connected.
Ensure that the Dialing Mode Switch is set to the correct position.
Unplug the phone, wait 30 seconds, then plug the phone back in.
Phone does not ring
Ensure there are no other devices connected to the same line.
Cannot be heard by the other party
Confirm phone cord and handset curly cord are securely plugged in.
Make sure MUTE key LED is off.
Care and Maintenance
To keep your telephone working well and looking good, follow these few simple guidelines.
Avoid putting the telephone near heating appliances and devices that generate electrical noise.
The telephone should not be exposed directly to sunlight or moisture.
Avoid dropping the handset and other rough treatment.
Clean the telephone using a soft cloth moistened with a mild cleaning solution. Remove all
traces of the cleaner with a damp cloth.
Never use cleaners containing alcohol, strong cleaners that may corrode plastic, or abrasive
powders, as this may damage the finish.
SPECIFICATIONS
12
SPECIFICATIONS
Item
Specifications
Exterior
Dimensions (W × D × H)
148×219×77mm / 5.83×8.62×3.03 inch
Weight
Approx. 0.56 kg /1.24 lbs
Operating Conditions
Operating Temperature
0
～
40
℃
/ 32
～
104 °
Ｆ
Relative Humidity
10
～
90% RH
（
Non-condensing
）
Features
Caller ID receiver
FSK (type I)
Caller ID information
CID number with date and time stamp
Caller ID review, delete, dial back
Yes
Caller ID storage
30 calls (21 digits)
Outgoing call history
10 calls (21 digits)
Last number redial key
Yes (32 digits)
Date and time display
Yes (24 hour)
Call duration timer
Yes
DTMF and Pulse dialing
Yes (DP/MF switch)
Selectable hook flash timing
95/100/120/180/300/600ms
(default=600ms)
Pause key
Yes (3.6 sec)
Mute key (handset)
Yes (with LED indication)
Message waiting lamp
Yes
Visual ring indicator
Yes
In-use indication
Yes
New call indication
Yes (LCD)
Repeat call indication
Yes
Handset receive volume control
Yes (slide switch, 3 levels)
Adjustable ring volume
Yes (3 levels)
Adjustable ring tone
Yes (3 pitches)
Automatic insertion of trunk access code
Yes (selectable 0~9)
Adjustable LCD contrast
Yes (6 levels)
Wall mountable
Yes (in-built)
Telephone line interface
2-wire analog center pair
QUICK REFERENCE
13
QUICK REFERENCE
Feature Access Code
Operation: Dial Access Code + Option Code + #
Feature
Dial Access Code
Option Code
Ring Tone
*1*
1: Low Tone (default)
2: Mid Tone
3: High Tone
PBX Trunk Access Code
*0*
0~9
(default = not assigned)
Hook Flash Timing
*41*
00: 95ms
01: 100ms
02: 120ms
03: 180ms
04: 270ms
05: 300ms
06: 600ms (default)
Restore to Factory Settings
*99*
99
Memory of call history is also deleted.
Stored Data in the Telephone
The following table shows the stored data in the telephone. If you want to delete the data or restore
to factory settings, use the Feature Access Code (*99*).
Item
Feature
Stored Data
Telephone numbers
Outgoing dialed numbers
*
10 calls (21 digits)
Incoming Caller ID (CID)
numbers
30 calls (21 digits)
Last Number Redial
*
1 call (32 digits)
LCD display information
Calendar
*
Year/Month/Day/Hour/Minute/Day of the week
Call history counter
Number of incoming/outgoing
*
calls
Number of unanswered
calls
30 calls
Icon display
NEW/REPEAT
*
/IN
*
/OUT
*
Volume key settings
LCD contrast
1-6 (default = 4)
QUICK REFERENCE
14
Item
Feature
Stored Data
Feature Access Code settings
Ring Tone
1: Low Tone (default)
2: Mid Tone
3: High Tone
PBX Trunk Access Code
0~9 (default = not assigned)
Hook Flash Timing
00: 95ms
01: 100ms
02: 120ms
03: 180ms
04: 270ms
05: 300ms
06: 600ms (default)
CID Receiving Mode
FSK
NOTE
Please note the stored data marked with “
*
” will be deleted by disconnecting the line cord. If there is
important data, it is recommended to record the data before disconnecting the line cord.
Operations
Feature
Operation
Telephone State
LCD Contrast
Press VOLUME
Idle
Handset Volume
Handset Volume Control
Switch
Mute Handset
Press MUTE
Off Hook Handset
Caller ID Business Telephone
AT-50 USER GUIDE
GVT-053680-001
December, 2018 Issue 2.0
NEC Corporation