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®
Dterm Cordless II
OWNER'S GUIDE
Document Revision 2

NEC America, Inc. reserves the right to change the specifications, functions, or
features, at any time, without notice.
NEC America, Inc. has prepared this document for the use by its employees and
customers. The information contained herein is the property of NEC America, Inc.
and shall not be reproduced without prior written approval from NEC America, Inc.
Dterm is a registered trademark of NEC Corporation. Electra Elite is a registered
trademark of NEC America, Inc.
AutoStandby and AutoTalk are trademarks of Uniden America Corporation.
Copyright 2001
NEC Infrontia, Inc.
6535 N. State Highway 161
Irving, TX 75039-2402
Technology Development

Document Revision 2
NEC America, Inc.
Chapter 5
Optional Equipment Installation
Section 1
Optional Accessories and Replacement Parts ................... 5-1
Section 2
Installing the Optional Headset ........................................... 5-2
Chapter 6 Troubleshooting
iv
Table of Contents

Specifications and Safety
Information
Chapter 1
SECTION 1
SPECIFICATIONS
The Dterm Cordless II complies with FCC and IC parts 15 and 68.
General
Frequency Control
Phase Lock Loop
Modulation
Spread Spectrum
Operating Temperature
0° ~ +50° C (+32° F to +122° F)
Output Power
63 mW
Occupied Bandwidth
1,600 kHz
Data Transmission Speed
688 bps
Base Unit
Receive/Transmit Frequency
902 MHz ~ 928 MHz
Power Requirements
10 Vdc from supplied AC adapter
Size
4-1/4 in. W x 7-1/2 in. D x 2-1/4 in. H
Weight
Approximately 15.4 oz.
Handset
Receive/Transmit Frequency
902 MHz ~ 928 MHz
Power Requirements
Nickel-Cadmium Battery Pack
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Size
2-1/5 in. W x 1-2/3 in. D x 8-2/3 in. H
(with antenna)
Weight
Approximately 8.8 oz with battery
Battery
Capacity 800 mAh, 3.6V
Talk Mode
6 hours (typical)
Standby Mode
4 days (typical)
Specifications shown are typical and subject to change without notice.
Battery Charger
Power Requirements
9V DC from supplied AC adapter
Size
2-1/5 in. W x 1-2/3 in. D x 8-2/3 in. H
(with antenna)
SECTION 2
BATTERY SAFETY
To reduce the risk of fire or injury to persons by the battery,
read and follow these instructions.
This equipment contains a rechargeable nickel-cadmium battery.
Do not short-circuit the battery.
Do not charge the rechargeable nickel-cadmium battery used in this
equipment in any charger other than the one designed to charge this battery
as specified in this manual. Using another charger can damage the battery
or cause the battery to explode.
Use only the appropriate type and size battery pack specified in this
manual.
Do not open or mutilate the battery pack. Released electrolyte is corrosive
and can cause damage to the eyes or skin. It may be toxic if swallowed.
Exercise care in handling the battery in order not to short the battery with
conducting materials such as rings, bracelets, and buttons. The battery or
conductor can overheat and cause burns.
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Charge the battery pack provided with or identified for use with this product
only in accordance with the instructions and limitations specified in the
instruction manual provided for this product.
Observe proper polarity orientation between the battery pack and battery
charger.
Do not dispose of the battery pack in a fire, the cell may explode.
Do not place the batteries in your regular trash. Nickel-cadmium batteries
must be collected, recycled, or disposed of in an environmentally sound
manner. Contact your local waste management officials for other
information regarding the environmentally sound collection, recycling and
disposal of the battery contained in this product.
SECTION 3
IMPORTANT SAFETY INSTRUCTIONS
When using the telephone equipment, basic safety precautions should always
be followed to reduce the risk of fire, electrical shock, and injury to persons,
including the following:
Read and understand all instructions.
Follow all warnings and instructions marked on the product.
Unplug this product from the wall outlet before cleaning. Do not used liquid
cleaners or aerosol cleaners. Use a dry cloth for cleaning.
Do not use this product near water; for example, near a sink or in a wet
area.
Do not place this product on an unstable cart, stand, or table. The
telephone can fall, causing serious damage to the unit.
To protect the product from overheating, do not block or cover any slots or
openings in the base unit. 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 the proper ventilation is provided.
This product should be operated only from the type of power source
indicated on the marking label.
Do not allow anything to rest on the power cord. Do not locate this product
where the cord will be damaged by people walking on it.
Do not overload wall outlets and extension cords, as this can result in the
risk of fire or electrical shock.
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Never push objects of any kind into this product through the base unit slots,
as they may touch dangerous voltage points or short out parts that could
result in a risk of fire or electrical shock. Never spill liquid of any kind on the
product.
To reduce the risk of electric shock, do not disassemble this product.
Contact qualified service personnel when some 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 appliance is subsequently used.
Unplug this product from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
·
When the power supply cord is damaged or frayed.
·
If liquid has been spilled onto the product.
·
If the product has been exposed to water or rain.
·
If the product does not operate normally when following the operating
instructions. Adjust only those controls that are covered by the
operating instructions. Improper adjustment of other controls can result
in damage, and will often require extensive work by a qualified
technician to restore the product to normal operation.
·
If the product has been dropped, or the cabinet has been damaged.
If the product exhibits a distinct change in performance.
Do not use the telephone to report a gas leak in the vicinity or the leak.
To reduce the risk of fire or injury to persons by the battery, read and follow
these instructions.
·
Use only the appropriate type and size battery pack specified in the
manual.
·
Exercise care in handling the battery in order not to short the battery
with conducting materials such as rings, bracelets, and buttons. The
battery or conductor can overheat and cause burns.
Privacy
Cordless telephones are radio devices. Communications between the
handset and base of the cordless telephone are accomplished by means of
radio waves which are broadcast over the open airways. Because of the
inherent physical properties of radio waves, communication can be received
by radio receiving devices other than your own telephone unit, consequently,
any communications using the cordless telephone may not be private.
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Specifications and Safety Information

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Document Revision 2
SECTION 4
IMPORTANT ELECTRICAL CONSIDERATIONS
Do not attempt to unplug any appliance during an electrical
storm.
Unplug all electrical appliances when you know an electrical storm is
approaching. Lightning can pass through your household wiring and damage
any device connected to it. This telephone is no exception.
Caution:
Changes or modifications to this product not expressly approved by NEC
America, Inc., or operation of this product in any way other than as detailed
by this manual, could void your authority to operate this product.
Range
The new telephone is designed to achieve a maximum range of up to 350
feet (depending upon the environment) by transmitting and receiving
according to the highest specifications set forth by the FCC. We have rated
this phone to operate at a maximum distance with the qualification that the
range depends upon the environment in which the telephone is used. Many
factors limit range, and it would be impossible to include all of the variables in
our rating. The maximum range rating of this telephone is meant to be used
as a means of comparison against other range claims.
Telephone Line Problems
The FCC has granted the telephone company the right to disconnect service
in the event that your telephone causes problems on the telephone line. Also,
the telephone company may make changes in facilities and services which
can affect the operation of your unit. However, your telephone company must
give adequate notice in writing prior to such actions to allow you time for
making necessary arrangements to continue uninterrupted service.
If you are having trouble with your telephone service, you must first
disconnect your telephone to determine if it is the cause of your problem. If
you determine that it is the cause, you must leave it disconnected until the
trouble has been corrected.
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Radio Interference
Radio interference may occasionally cause buzzing and humming in your
cordless handset, or clicking noises in the base unit. This interference is
caused by external sources such as TV, fluorescent lighting, or electrical
storm. Your unit is NOT DEFECTIVE. If these noises continue and are too
distracting, check around your office to see what appliances may be causing
the problem. In addition, we recommend that the base not be plugged into a
circuit that also powers a major appliance because of the potential of
interference. For best performance, ensure that the antenna on the base unit
is fully extended.
In the unlikely event that you consistently hear other voices or distracting
transmissions on your telephone, you may be receiving radio signals for
another cordless telephone or other source of interference. If you cannot
eliminate this type of interference, you need to change to a different channel.
Finally, it should be noted that some cordless telephones operate at
frequencies that may cause interference to nearby TVs and VCRs. To
minimize or prevent such interference, the base of the cordless telephone
should not be placed near or on top of a TV or VCR. If interference is
experienced, moving the cordless telephone farther away from the TV or VCR
will often reduce or eliminate the interference.
More than One Cordless Telephone
If you want to use more than one cordless telephone in your office, they must
operate on different channels. Press the channel key to select a channel that
provides the clearest communication.
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Specifications and Safety Information

About the Dterm Cordless I I
Chapter 2
SECTION 1
ITEMS INCLUDED WITH THE Dterm CORDLESS II
Congratulations on your purchase of the Dterm Cordless II. This telephone is
designed and engineered to exacting standards for reliability, long life, and
outstanding performance. To become familiar with the features of the
cordless telephone, read this manual thoroughly.
The Dterm Cordless II includes the following items:
Base Unit
Handset
Tel
Te ep
le ho
ph ne
on
e
2 AC Adapters
Cord
Rechargeable
Belt Clip
Charging Unit
Wall Plate
Battery
Adapter
Figure 2-1 Items Included with the Dterm Cordless II
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SECTION 2
FEATURES OF THE CORDLESS TELEPHONE
The Dterm telephone provides a variety of features. These features are listed
below.
900 MHz Digital Spread Spectrum
2-line, 16-digit LCD Display
10 Channels
Headset Jack
Channel Selection Control
Ringer Volume Control
Handset Volume Control
Mute Control
Single Key Access to: Conference, Hold, Transfer, Channel and
Redial features
Four Programmable Keys: F1~F4
Separate Charging Stand with Spare Battery Charging Capability
AutoStandby ®
Silent Alarm
Out of Range Protection
Low Battery Protection System
Wall Mountable Separate Base Unit
Wall Mountable Separate Charging Unit
Easy Installation
Compact Handset Design
Use with an NEC Digital Multiline Telephone
Desk/Cordless Softkey Switch

The Dterm Cordless II can be used in conjunction with the, Electra Elite ®,
and Dterm ® Series E Digital Multiline Telephones.
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SECTION 3
Dterm CORDLESS II CONTROLS AND FUNCTIONS
The primary components of the Dterm Cordless II consist of the handset and
the base unit. Before using the telephone for the first time, you should
become familiar with the controls and functions of the handset and base unit.
1.
Ringer ON/OFF Switch
10.
Conference (CONF) Key
2.
Message Display
11.
Transfer (TRANSFER) Key
3.
Hold (HOLD) Key
12.
Redial (REDIAL) or
Desk/Cordless Softkey Switch
Key
4.
Talk (TALK) Key
13.
Channel (CHAN) Key
5.
Numeric Keypad
14.
F3
6.
F2
15.
F4
7.
F1
16.
Ringer/Volume (R/VOL) Key
8.
Microphone
17.
Mute (MUTE) Key
9.
Headset Jack
Figure 2-2 Handset Controls and Functions
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18.
Cordless
20.
Power
19.
Desk
Figure 2-3 Base Unit Controls and Functions
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About the Dterm Cordless II

Installing the Dterm Cordless II
Chapter 3
SECTION 1
SELECTING A LOCATION
Select a location for the Dterm Cordless II to avoid excessive heat or humidity.
The base unit of the Dterm Cordless II can be placed on a desk or tabletop
near a standard 120 Vac outlet and telephone line jack. The base unit can
also be mounted on a standard wall plate using the wall mount adapter. Keep
the base unit and handset away from sources of electrical noise (motors,
fluorescent lighting, computers, PC monitor). Refer to Chapter 1
Specifications and Safety Information for a complete discussion of safety
precautions.
SECTION 2
INSTALLATION PRECAUTIONS
To ensure optimum performance follow these guidelines.
Each base unit must be placed at least five feet apart.
The base antenna should be raised to the vertical position.
Always place the base unit on top of a desk or on higher shelves.
Avoid locations surrounded by metal surfaces.
Place the base away from any electrical component such as a PC,
monitor and other telephone.
SECTION 3
CONNECTING THE TELEPHONE CORDS
When connecting the telephone cords, observe the following precautions.
Never install telephone wiring during a lightning storm.
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Never touch bare telephone wires or terminals unless the telephone
line has been disconnected at the network interface.
Use caution when installing or modifying telephone lines.
To connect the telephone cords:
1.
Connect the cord from the telephone jack to the Line In on the Dterm
Cordless II.

To digital Multiline
Telephone
interface card on
KTS/PBX
Figure 3-1 Connecting Telephone Cords to the Telephone Jack
2.
Connect a qualified NEC digital Multiline Terminal to the Dterm Cordless
II.
Line "OUT"
Electra Elite or
Dterm Series E
Multiline Telephone
Figure 3-2 Connecting the Dterm Cordless II to the Multiline Terminal
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SECTION 4
APPLYING POWER TO THE CHARGING UNIT
The unique design of the telephone allows the user to place the handset in the
charging unit with or without the belt clip attached. The charging unit can
charge a second battery with or without the handset being charged. The
battery packs can automatically be recharged either in or out of the handset.
Figure 3-3 Applying Power to the Charging Unit
Use only the supplied AC adapter for the charging unit.
The AC adapter furnished with this telephone may be equipped with a
polarized line plug (a plug having one blade wider than the other). This plug
will fit into the power outlet only one way. If you are unable to insert the plug
fully into the outlet, try reversing the plug. Refer to Figure 3-4 Polarized
Plug.
If you cannot plug the AC adapter into the outlet, the outlet may need to be
replaced.
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Route the power cord where it will not create a trip hazard, or
where it could become chafed and create a fire or other
electrical hazards.

Figure 3-4 Polarized Plug
SECTION 5
WALL INSTALLATION
Standard Wall Plate Mounting
The base unit is designed to be mounted on standard wall plate. To attach the
wall mount stand to the base unit:
1.
Slide the wall mount stand into the notches at the top of the base unit.
Rotate the wall mount stand down and snap it into place.
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Figure 3-5 Attaching the Wall Mount Stand to the Base Unit
2.
Plug the AC adapter into the base unit.
3.
Place the AC adapter cord inside the molded channel of the wall mount
stand.
Figure 3-6
Placing the AC Adapter Cord Inside the Wall Mount
Stand
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4.
Plug one end of the short telephone cord (locally supplied) in the LINE
jack on the base unit. Plug one end of the NEC digital multiline
telephone into the PHONE jack. Place the telephone cords inside the
molded channels on the bottom of the wall mount stand.
5.
Plug the other end of the short telephone cord into the modular wall jack
in the center of the wall plate.
6.
Place the base unit on the posts of the wall plate and push down until it
is firmly seated.
Figure 3-7 Placing the Base Unit on the Posts of the Wall Plate
7.
Plug the AC adapter into a standard 120 Vac wall outlet.
Do not use an outlet controlled by a wall switch.
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Figure 3-8 Plugging the AC Adapter into the AC Wall Outlet
Direct Wall Mounting
If a standard wall plate is not available, mount the telephone directly on the
wall. Before mounting the telephone, consider the following:
Select a location away from electrical cables, pipes, or other items
behind the mounting location that could cause a hazard when
inserting screws into the wall.
Make sure the wall material is capable of supporting the weight of the
base unit.
Use #10 screws with anchoring devices suitable for the wall material
where the base unit will be placed.
To mount the telephone:
1.
Insert two mounting screws 3-15/16 inches apart. Allow about 3/16 of
an inch between the wall and screw heads for mounting the telephone.
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Figure 3-9
Inserting Screws into the Wall for Wall
Mounting the Telephone
2.
Plug in and secure the AC adapter.
3.
Plug the AC adapter into the base unit.
4.
Plug one end of the short telephone cord into the LINE jack on the base
unit. Then plug one end of an Electra Professional or Electra Elite
multiline telephone into the PHONE jack. Place the telephone cords
inside the molded channels on the bottom of the wall mount stand.
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Figure 3-10
Placing the Telephone Cords into Inside the Wall
Mount Stand
5.
Place the base unit on the posts of the wall screws and push down until
it is firmly seated.
Figure 3-11 Attaching the Wall Mount Unit to the Wall
6.
Plug the other end of the short telephone cord into a telephone wall jack.
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7.
Plug the AC adapter into a standard 120 Vac wall outlet. Refer to
Figure 3-8 Plugging the AC Adapter into the AC Wall Outlet on page
3-7.
Do not use an outlet controlled by a wall switch.
Charging Unit Wall Mounting
The charging unit is also designed to be wall mounted. Before mounting the
charging unit, consider the following:
Select a location away from electrical cables, pipes, or other items
behind the mounting location that could cause a hazard when
inserting screws into the wall.
Make sure the wall material is capable of supporting the weight of the
charging unit.
Use #10 screws with anchoring devices suitable for the wall material
where the charging unit will be placed.
To mount the charging unit:
1.
Insert two mounting screws one inch apart. Allow about 3/16 of an inch
between the wall and screw heads for mounting the telephone.
Figure 3-12 Inserting Screws for Wall Mounting
2.
Plug the AC adapter into the charging unit. Wrap the AC adapter cord
around the strain relief.
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Figure 3-13 Wrapping the AC Adapter Cord Around the Strain Relief
3.
Place the charging unit on the posts of the wall screws and push down
until it is firmly seated.
Figure 3-14 Placing the Charging Unit on the Wall
4.
Plug the AC adapter into a standard 120 Vac wall outlet. Refer to
Figure 3-14 Placing the Charging Unit on the Wall.
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SECTION 6
ATTACHING AND REMOVING THE BELT CLIP
A belt clip can be used to attach the handset to a belt or pocket for convenient
portability.
1.
Slide the clip into the tab slots. Press firmly until it snaps into place.
The belt clip is designed to fit snugly onto the handset.
Figure 3-15 Attaching the Belt Clip to the Handset
2.
To remove the clip, press the retaining clip in toward the belt clip blade
and slide the clip up at the same time.
Figure 3-16 Removing the Belt Clip
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SECTION 7
INSTALLING THE HANDSET BATTERY PACK
Before installing batteries, refer to Chapter 1 Specifications and Safety
Information, Section 2 Battery Safety on page 1-2. It is important to follow
safety regulations when handling batteries.
1.
Remove the battery cover by pressing the latch and sliding the cover
down and off of the handset.
Figure 3-17 Removing the Battery Cover
2.
Slide the battery pack down into the handset.

It may be necessary to remove the old battery at this time.
Figure 3-18 Replacing the Battery Pack
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3.
Replace the cover and slide it up until it latches onto the handset.
Figure 3-19 Replacing the Battery Cover
SECTION 8
CHARGING BATTERIES
Charging the Handset Battery Pack
The rechargeable battery pack must be fully charged before using the Dterm
for the first time.

Charge the battery pack without interruption for five to eight hours.
1.
Place the handset in the front slot of the charging unit.
2.
Make sure the CHARGE 1 indicator lights. If the CHARGE 1 LED does
not come on, check to see if the AC adapter is plugged in and that the
handset is making good contact with the charging contacts on the
charging unit.
The CHARGE 1 LED turns red during and after charging the handset
with the battery.
Battery Hot Swap
The battery can be hot swapped while a conversation is taking place. The
battery must be changed within 30 seconds otherwise, connection will be lost.
Refer to Section 7 Installing the Handset Battery Pack on page 3-13 for
instructions for changing batteries.
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Figure 3-20 Charging Unit
Charging Spare Battery Packs
The Dterm Cordless II is equipped with a battery charger for charging the spare
battery pack.
1.
Slide the spare battery pack into the second slot in the charging unit
until the retaining clip snaps over the top of the pack.
2.
Make sure the CHARGE 2 LED lights. If it does not light, check that the
AC adapter is plugged in and that the battery pack is making contact
with the charging contracts on the charging unit.
Charging is complete when the CHARGE 2 LED goes off.

Charge the battery pack without interruption for five to eight hours.
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Figure 3-21 Charging the Battery Pack
3.
When charging is complete, press on the latch and remove the battery
pack. If the battery pack is not needed immediately, leave it in the
charging compartment (it will not overcharge).
SECTION 9
LOW BATTERY INDICATOR
The handset has visual and audible indicators to warn of a low battery
condition. The indicators are different for standby mode and talk mode.
Standby Mode
The handset display turns on the battery
low icon. All LEDs are turned off and LCD
messages are cleared. All keys are
disabled. A battery low alert tone will be
emitted every 15 seconds and lasts for
three minutes.
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Talk Mode
The handset display turns on the battery
low icon. All keys and functions are
available. The battery low alert tone will be
emitted every three seconds as long as
conversation continues. After conversation
is completed, the handset returns to the battery low condition in standby
mode.
When you receive the low battery indication, return the handset to the base
unit for charging or replace the handset battery pack with another charged
battery pack. Refer to Section 8 Charging Batteries on page 3-14 or
Section 7 Installing the Handset Battery Pack on page 3-13.
The following table indicates what occurs and the action to be taken during a
call or in standby mode when low battery indication is displayed.
Table 3-1 Low Battery
On a Call
In Standby Mode
What occurs when batt low is displayed:
Only the TALK key operates
None of the keys operate
Handset beeps once every three
Handset beeps every 15 seconds for
seconds
15 minutes
Action:
Complete the call as quickly as
Cannot make a call
possible
Replace the battery pack within 30
Replace the battery pack before
seconds to continue a call
making another call
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SECTION 10
CLEANING THE BATTERY CHARGE CONTACTS
To maintain a good charge, it is important to clean all charging contacts on the
handset and charging unit about once a month. Use a pencil eraser or other
contact cleaner. Do not use liquids or solvents.
Figure 3-22 Cleaning Battery Charge Contacts
SECTION 11
ANTENNA
Before using the Dterm Cordless II, raise the antenna to the vertical position as
illustrated in Figure 3-23 Raising the Base Unit Antenna.
Figure 3-23 Raising the Base Unit Antenna
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Installing the Dterm Cordless II

Dterm Cordless II Handset
Chapter 4
SECTION 1
HANDSET CONTROLS
The operations of the Dterm Cordless II are performed using the handset. The
HOLD, CONF (conference), TRANSFER, TALK, CHAN (channel), and
REDIAL keys are used to control various functions. Volume, ringer, and mute
are controlled by the keys on the side of the handset.
Refer to Table 4-1 Handset Control Functions for an explanation of the
handset controls.
Handset Controls
Volume Controls
Figure 4-1 Handset Controls
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Table 4-1 Handset Control Functions
Condition
Action
Hold Key
Press HOLD on the front of the handset to place an
HOLD
existing call on hold.
Transfer Key
Press TRANSFER on the front of the handset to transfer
TRANSFER
a call.
Conference Key
Press CONF on the front of the handset to add a call to a
CONF
conference.
Talk Key
Press TALK on the front of the handset to make a call.
(Standby Mode)
The telephone first acquires a line to the base.
TALK
Channel Key
Press CHAN, the talk indicator flashes twice as the base
(during a call)
unit switches to a different channel.
CHAN
Redial Key or
Press REDIAL to dial the number that was previously
Desk/Cordless
dialed or to perform desk/cordless softkey switching.
Softkey Switch
REDIAL
Desk/Cordless softkey switching must be
programmed on the REDIAL key. At system
default, the redial function is available.
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Table 4-1 Handset Control Functions (Continued)
Condition
Action
Ringer Select
Press r/vol on the side of the handset to select one of
(Standby Mode)
the following ringer type settings:
R/VOL
Ring Type A (High)
Ring Type A (Low)
Ring Type B (High)
Ring Type B (Low)
Ring Type C (High)
Ring Type C (Low)
Ring Off (Silent Alarm)
Volume Control
Press r/vol on the side of the handset to select one of
(Talk Mode)
the following volume level settings:
R/VOL
Volume Low
Volume Medium
Volume High
Volume Maximum
Mute Key
Press mute on the side of the handset to mute a
MUTE
conversation.
Volume/Ringer
Slide the lever upward to turn the volume/ringer on, slide
On/Off Key
the lever downward to turn the volume/ringer off.
ON
OFF
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SECTION 2
SETTING UP AND PROGRAMMING THE DTR-4R-1
Programming Mode
1.
Press and hold down , and #, then press the TALK key. The F1 LED
flashes red.
2.
Press the R/VOL key repeatedly to scroll through the line key (LK) and
feature options for function key F1.
3.
Press the MUTE key to select the displayed line key or feature.
4.
Press the R/VOL key to toggle between `TALK' for On or `NO TALK' for Off.

`TALK' is selected when the F1~F4 function keys are programmed for
CO or Call Appearance Keys. `NO TALK' is selected when F1~F4
function keys are programmed for functions not requiring an off-hook
state (e.g., Log On/Off or DND).
5.
Press the MUTE key to advance to the next function key (F2 ~ F4).
6.
After programming F4, press the MUTE key to advance to global off-hook
ringing assignment.
7.
Press R/VOL to turn global off-hook ringing on or off (LCD indicates ON or
OFF as appropriate).
8.
Press the TALK key to exit.

Function keys (F1 ~ F4) can be programmed as line keys 1~16 for
redial (LNR/SPD), answer (ANS), feature (FNC), or recall. When
assigned, these keys operate the same as on an NEC multiline
telephone.

When initially installed, function keys (F1~F4) default to line keys 1~4
respectively and off-hook ringing defaults to ON.

Global off-hook ringing must be set to ON (default) if any function key
is to operate with off-hook ringing.
4 - 4
Dterm Cordless II Handset

NEC America, Inc.
Document Revision 2
Switching Between the Desktop Multiline Telephone and the
Cordless Telephone Using the Base Unit
When the Dterm Cordless II is associated with a multiline telephone the
following is applicable:
Switching between cordless and desk mode must be done while both
telephones are idle.
A call in progress cannot be switched between the Dterm Cordless II
and the associated multiline telephone.
Switching held calls between the Dterm Cordless II and the associated
multiline telephone is not recommended since line key LED indications
will not be provided.
Use the base unit on the Dterm Cordless II to switch between the Dterm
Cordless II and the multiline telephone.
To perform switching:
Press Cordless to select the Dterm Cordless II.
- OR -
Press Desk to select the Multiline Telephone. (Refer to Figure 4-2 Cordless
and Desk Buttons.)
The Dterm display indicates DESK TEL when the multiline telephone is
connected.
Figure 4-2 Cordless and Desk Buttons
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Document Revision 2
NEC America, Inc.
Switching from Desk to Cordless Using a Softkey
At system default, the REDIAL key can only be used for the redial function.
However, the REDIAL key can be programmed to perform desk to cordless
switching. If the handset is in desk mode, the REDIAL key can be pressed to
automatically switch the handset from desk mode to cordless mode.
To program the REDIAL key for desk/
cordless softkey switching:
1.
Ensure the base unit is in desk mode.
2.
Remove the battery pack. Refer to
Chapter 3 Installing the Dterm
Cordless II, Section 7 Installing the
Handset Battery Pack on page 3-13.
3.
Simultaneously press and hold the , and # keys on the handset.
4.
While continuing to hold the , and # keys, install the battery.
5.
After the handset beeps one time, release the keys. The handset is now in
setup mode.
6.
Press the HOLD key to display the current mode. Digital (Redial) is
displayed in the LCD.
7.
Press the F2 key and then the HOLD key. Digital (F8) is displayed in the
LCD. Desk/cordless softkey switching mode is now set.
8.
Press the TALK key once to restore the handset to standby mode.
To verify that the desk/cordless softkey switching mode has been
properly set, press the REDIAL key once. If properly set, the base unit
LED automatically changes from desk to cordless. The LEDs will only
change the first time the REDIAL key is pressed.
F1~F4 keys can be programmed for the redial function. Refer to
Programming Mode on page 4-4.
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Dterm Cordless II Handset

NEC America, Inc.
Document Revision 2
To restore the REDIAL key to the redial function:
1.
Enter setup mode (refer to steps 1~5 Switching from Desk to Cordless
Using a Softkey on page 4-6 ).
2.
Press the F3 key and then the HOLD key. Digital (Redial) is displayed in the
LCD indicating that the redial function has been restored to the REDIAL key.
3.
Press the TALK key once to restore the handset to standby mode.
SECTION 3
USING THE HANDSET
When using the handset, different status indications are displayed in the
handset LCD.
Acquiring Link
When the TALK key on the handset is pressed, the
handset attempts to connect to the base unit. The
ACQUIRING LINK message blinks on the handset
display (300 msec ON/300 msec OFF) to indicate
that connection is in progress
After the connection is made between the handset
and base unit, a message is displayed in the LCD to indicate the condition of
the handset. Refer to Table 4-2 LCD Display Indicators for a list of possible
conditions.
Table 4-2 LCD Display Indicators
Condition
Indicator
LCD Display
Line OK
TALK Icon
N/A
No Connection to Base Unit
Error Tone
NO SERVICE
Channel Busy
Error Tone
SYSTEM BUSY
Line in Use
Error Tone
LINE IN USE
No Line Selected
TALK Icon
NO LINE SELECTED
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Document Revision 2
NEC America, Inc.
Volume Low
When connection is established, the TALK icon is
turned on and displays the current volume settings
for two seconds. If the host system sends any
messages at this time, the volume display is
canceled.
Dialing
When the handset displays this message, it is
prompting the user to enter the numbers to be
dialed.
No Service
When the handset cannot connect to the base unit,
an error tone is emitted and NO SERVICE is
displayed for two seconds on the handset LCD.
The handset then goes into standby mode. When
the NO SERVICE indication is received, take one
the following actions described in Table 4-3 No
Service Conditions to resolve the NO SERVICE
condition.
Table 4-3 No Service Conditions
During a Call
In Standby Mode
Warning Tone
Cannot make or answer calls
Condition
(telephone may ring
intermittently).
Move back in range within
Move back within range.
20 seconds.
Action
Check power to the base
Check power to the base unit.
unit.
4 - 8
Dterm Cordless II Handset

NEC America, Inc.
Document Revision 2
SECTION 4
ANSWERING A CALL
To answer a call when the handset is in the charging unit:
1.
When a call is received, the handset rings and the LED on one of the
function keys (assigned to a line key) flashes.
2.
Pick up the handset. The AutoTalk feature allows the call the be answered
immediately.
3.
When the call is finished, place the handset back in the charging unit.
AutoStandby automatically hangs up the phone.
-OR-
If the handset is away from the charging unit, press TALK to hang up the
telephone.
To answer a call if the handset is not in the charging unit:
1.
When a call is received, the handset rings and the red LED on one of the
function keys flashes.
2.
Press the function key with the flashing LED to answer the call.
-OR-
Press TALK to answer the incoming call.

The Ringing Line Preference feature must be enabled in order to
answer calls with the TALK key. Contact an authorized NEC Dealer
for programming this feature.

If two or more calls come in at the same time, pressing the TALK key
answers the prime line.
3.
When the call is finished, place the handset back on the charging unit.
AutoStandby automatically hangs up the telephone.
-OR-
If the handset is away from the base unit, press TALK to hang up the
telephone.
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Document Revision 2
NEC America, Inc.
SECTION 5
MAKING A CALL USING THE Dterm CORDLESS II
Several advanced features for making calls are available depending on how
the deskset is programmed. Refer to Section 6 Dedicated Feature
Operations. This section describes normal call handling.
1.
Remove the handset from the charging unit.
2.
Press the TALK key. The talk icon appears after
the handset and base unit are connected.
-OR-
Press the designated function key (programmed
as a line key). When dial tone is heard, enter the
number to be called. The display shows the
dialed telephone number.
3.
When the call is finished, place the handset back
in the charging unit. The AutoStandby
automatically hangs up the telephone.
-OR-
If the handset is away from the charging unit, press TALK to hang up the
telephone.
SECTION 6
DEDICATED FEATURE OPERATIONS
Calls can be placed on hold, transferred to another extension, or two or more
parties can be conferenced. These operations depend upon how they are set
up in the key system.
The handset must be within range of the base for the special
operations to function properly.
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Dterm Cordless II Handset

NEC America, Inc.
Document Revision 2
Placing a Call on Hold
1.
Press HOLD on the handset during the call. The LED associated with the
line key being used flashes.
2.
To return to the holding call, press the associated line key.
Muting a Call
1.
Press the MUTE key on the handset during a
call. The `TALK' icon blinks on the display.
2.
To turn mute off, press the MUTE key again and
the call is restored.
Transferring Calls
Calls can be forwarded to another extension. To transfer a call:
1.
Press the TRANSFER key and the telephone number of the transfer
destination.
2.
Wait for the party to answer, then press the TALK key to hang up. The two
parties can now converse.
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Document Revision 2
NEC America, Inc.
Setting up a Conference Call
This feature allows the user to set up a 3-party conference (the user and two
other parities).
To set up the conference:
1.
Dial the first number for the first party.
2.
When the first party answers, press the CONF key.
3.
Dial the second number for the second party.
4.
Press the CONF key again. A 3-party conference is now established. If any
party hangs up, the conference only includes the remaining parties.
4 - 12
Dterm Cordless II Handset

Optional Equipment Installation
Chapter 5
SECTION 1
OPTIONAL ACCESSORIES AND REPLACEMENT PARTS
Optional accessories and replacement parts can be obtained by contacting
your NEC representative.
Adapter for Base Unit
Telephone
Belt Clip
800 mAh Battery
Cord
Charger and AC
Base Unit Wall
Headset
Leather Case
Adapter
Mount
Figure 5-1 Optional Accessories and Replacement Parts
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Document Revision 2
NEC America, Inc.
SECTION 2
INSTALLING THE OPTIONAL HEADSET
The optional headset provides a handsfree option for the Dterm Cordless II.
With the headset installed, the user can use the belt clip the carry the handset
and conduct a conversation using the headset.
To install the headset:
Open the cover over the headset jack and plug the headset into the
receptacle.
Figure 5-2 Installing the Headset
No other settings are needed. Operation of the headset is the same as the
handset. However, the user hears through the headset earphone and talks
through the headset microphone. The handset earphone and microphone
(mouthpiece) are disconnected.
5 - 2
Optional Equipment Installation

Troubleshooting
Chapter 6
If the Dterm Cordless II is not performing to your expectations, try these simple
steps. If this does not resolve the problems, contact the NEC representative.

Do not attempt to service this unit yourself. All service must be done by
qualified service personnel.
Table 6-1 Troubleshooting
Problem
Suggestion
CHARGE 1 light will not
·
Make sure the AC adapter is plugged into
come on when the handset is
the charging unit and wall outlet.
placed in the charging unit.
·
Make sure the handset is properly seated
in the charging unit.
·
Make sure the nickel-cadmium battery
pack is properly installed in the handset.
·
Make sure that the charging contacts on
the handset and charging unit are clean.
CHARGE 2 light will not
·
Make sure the AC adapter is plugged into
come on when the spare
the charging unit and wall outlet.
battery is placed in the
·
Make sure the spare battery is properly
charging unit (low battery
seated in the base unit.
only).
·
Make sure the charging contacts on the
handset and charging unit are clean.
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Document Revision 2
NEC America, Inc.
Table 6-1 Troubleshooting (Continued)
Problem
Suggestion
Conversation is interrupted
·
Make sure the base unit antenna is fully
frequently.
vertical.
·
Move closer to the base unit.
·
Che
ck f or low batt warning.
Warning tone and NO
·
Move closer to the base unit.
SERVICE message
Handset does not ring
·
The nickel-cadmium battery may be weak.
Charge the battery pack for eight hours.
·
Make sure the base unit antenna is fully
vertical.
·
The handset may be too far from the base
unit.
·
Make sure the ringer on/off switch is in the
ON position.
6 - 2
Troubleshooting

Index
Numerics
spare 2-2, 6-1
10 channels 2-2
spare battery 3-15
4-day standby time 1-2
belt clip 2-1, 5-1
6-hour talk time 1-2
buttons
refer to keypad buttons 2-3
A
AC adapter 1-1, 2 -1, 3-3, 5-1, 6-1
C
acquiring link 4-7
calls
alarm 2-2
answering 4-9
alert tone
channel 4-2
battery low 3-16, 3 -17
key 4-1, 4-2
answering calls 4-9
selection 2-2
antenna 3-18, 6-2
charging
AutoStandby 2-2
handset battery pack 3-14
AutoTalk 4-9
spare battery pack 3-15
stand 2-1, 2-2
B
unit 2-2, 3-3
base unit 1-1, 2 -1
wall mounting 3-10
antenna 3-18, 6 -2
cleaning battery contacts 3-18
charging 6-2
conference key 2-3, 4-2
power requirements 1-1
cordless softkey switch 2-3
receive frequency 1-1
size 1-1
D
transmit frequency 1-1
data transmission speed 1-1
wall mounting 2-2, 5-1
desk softkey switch 2-3
weight 1-1
dialing 4-8
battery
direct wall mounting installation 3-7
800 mAh 5-1
Dterm
charging 2-2, 3 -3, 3-10, 3 -14, 6-2
Cordless II 2-2
charging unit 2-2
Series E 2-2
cleaning 3-18
cleaning contacts 6-1
E
handset 3-13
Electra Elite 2-2
low indication 2-2, 3-16, 3-1 7
electrical considerations 1-5
nickel-cadmium 1-1, 1-2, 6 -1, 6-2
rechargeable 2-1
F
recycling 1-3
F1~F4 keys 2-2, 2-3
safety considerations 1-2
FCC 1-1, 1 -5
Dterm TM Cordless II Owner's Guide
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Document Revision 2
NEC America, Inc.
compliance 1-6
headset 5-1
features
installing 5-2
10 channels 2-2
jack 2-2, 2-3
900 MHz digital 2-2
hold key 2-3, 4 -2
AutoStandby 2-2
channel selection 2-2
I
charging stand 2-2
indications
charging unit 2-2
acquiring link 4-7
cordless softkey switch 2-2
batt low 3-17
desk softkey switch 2-2
battery low 3-16
handset
low volume 4-8
design 2-2
no service 4-8
volume 2-2
installation precautions 3-1
headset jack 2-2
installing
LCD display 2-2
direct wall mounting 3-7
low battery protection 2-2
handset battery pack 3-13
mute control 2-2
headset 5-2
out of range protection 2-2
selecting location 3-1
programmable keys 2-2
standard wall plate 3-4
ringer volume control 2-2
silent alarm 2-2
K
single key access 2-2
keypad
wall mountable base unit 2-2
numeric 2-3
frequency
keypad buttons 4-1, 4-2
control 1-1
channel key 2-3
receive 1-1
conference key 2-3, 4-1, 4 -2
transmit 1-1
desk/cordless softkey switch 2-3
function keys 2-2
F1~F4 keys 2-3
hold key 2-3, 4-1, 4-2
H
mute key 2-3
handset 1-1, 2 -1, 6-2
redial 4-6
battery 1-1
redial key 2-3, 4-1, 4-2
battery pack 3-13, 3-14
talk key 4-1, 4 -2
controls 2-3
transfer key 2-3, 4-1 , 4-2
design 2-2
volume key 2-3
headset jack 2-3
volume/ringer key 4-3
message display 2-3
microphone 2-3
L
power requirements 1-1
LCD display 2-2
receive frequency 1-1
leather case 5-1
ringer 2-3
line problems 1-5
ringer on/off switch 2-3
low battery
size 1-1
indication 3-16, 3-17, 6-2
talk mode 1-1
protection 2-2
transmit frequency 1-1
using 4-7
M
volume 2-2
message display 2-3
weight 1-1
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NEC America, Inc.
Document Revision 2
microphone 2-3
selection 4-3
modes
volume control 2-2
programming 4-4
standby 3-16
S
talk 3-17
safety
modulation 1-1
battery 1-2
multiline telephone
electrical 1-5
using 4-4
general instructions 1-3
multiple telephones 1-6
silent alarm 2-2
mute control 2-2
single access key 2-2
mute key 2-3, 4-3
site location 3-1
softkey 4-6
N
softkey switch
nickel-cadmium battery 1-1, 1-2 , 6-1, 6 -2
cordless 2-2, 2-3
no service 4-8, 6-2
desk 2-2, 2-3
numeric keypad 2-3
spare battery pack 3-15
specifications
O
base unit 1-1
occupied bandwidth 1-1
frequency 1-1
optional accessories
frequency control 1-1
800 mAh battery 5-1
handset 1-1
AC adapter 5-1
modulation 1-1
base unit
phase lock loop 1-1
adapter 5-1
power requirements 1-1
wall mount 5-1
spread spectrum 1-1
belt clip 5-1
standard wall plate installation 3-4
charger 5-1
standby mode 1-2, 3 -16, 4-2, 4 -3, 4-8
headset 5-1
switching
leather case 5-1
desk/cordless 4-5, 4-6
telephone cords 5-1
out of range protection 2-2
T
output power 1-1
talk
key 4-2
P
mode 1-2, 3 -17
phase lock loop 1-1
telephone
power requirements 1-1
900 MHz digital spread spectrum 2-2
privacy 1-4
alarm 2-2
programmable keys 2-2
base unit 2-1
programming mode 4-4
belt clip 2-1
charging stand 2-1
R
cord 2-1, 5 -1
r/vol key
connecting 3-1
4-3
radio interference 1-6
Dterm
range 1-5
Cordless II 2-2
recycling 1-3
Series E 2-2
redial key 2-3, 4 -2, 4-6
Electra Elite 2-2
ringer
features 2-2
Dterm TM Cordless II Owner's Guide
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Document Revision 2
NEC America, Inc.
handset 2-1
V
headset 5-1
volume
leather case 5-1
control
line problems 1-5
high 4-3
multiline telephone 4-4
low 4-3, 4 -8
multiple 1-6
maximum 4-3
privacy 1-4
medium 4-3
radio interference 1-6
on/off key 4-3
range 1-5, 2-2
volume/ringer key 4-3
rechargeable battery 2-1
wall plate adapter 2-1
W
temperature
specifications
wall mounting
1-1
transfer key
base unit
2-3, 4-2
2-2, 5-1
troubleshooting
charging unit
6-1
2-2, 3-10
charge light 1
direct 3-7
6-1
charge light 2
standard 3-4
6-1
handset
wall plate adapter 2-1
6-2
interrupted conversation
warning tone 6-2
6-2
no service 6-2
warning tone 6-2
iv
Table of Contents

TM
Dterm Cordless II
OWNER'S GUIDE
Document Revision 2

Document Outline