NEC ML440 User Manual

ML440  
Revision 1.0  
End User Guide  
NEC Corporation of America  
NEC  
April 2011  
NDA-31193, Revision 1  
(DSX)  
i
Contents  
ML440 End User Guide - Revision 1  
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Figures  
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Tables  
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Title  
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Tables  
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1
Introduction  
About This Document  
This document explains how to use the ML440 handsets; for information  
on system configuration and base installation, see the ML440 and AP20  
System Installation Guide.  
The following topics are included in this chapter:  
Chapter Topics About This Document  
Important Safety Instructions  
Save these instructions.  
IMPORTANT  
To reduce the risk of fire, electric shock, or injury to persons, follow the  
basic safety precautions listed below when using your handset:  
• This unit is not waterproof. Do not expose this unit to rain or  
moisture.  
• Do not use this product near water, for example, near a bath tub,  
wash bowl, kitchen sink or laundry tub, in a wet basement or near a  
swimming pool.  
• Use only the power cord and batteries indicated in this manual.  
• Do not dispose of batteries in a fire. They may explode. Check with  
local codes for possible special disposal instructions.  
• Do not place the handset in any charging cradle without the battery  
installed and the battery cover securely in place.  
Risk of explosion if battery is replaced by an incorrect type! Dispose of used  
batteries according to the instructions. Do not open or mutilate the battery.  
Disconnect the battery before shipping this product.  
CAUTION  
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Introduction  
Manual Conventions  
This document uses several different type styles to help you distinguish  
between different parts of the system.  
Bold underlined text indicates a key on the unit itself or a button on  
a configuration screen.  
Reverse out indicates a soft key on the handset.  
• Italics indicate text on the display, such as menu options, prompts,  
and confirmation messages.  
ALL CAPS BOLD TYPE indicates a status light on the handset or  
base.  
Terms  
This document uses the terms and abbreviations listed in Table 1-1.  
Table 1-1 Terms and Definitions  
Term  
Definition  
The main part of the system that connects to the VoIP network and  
manages calls. All handsets must be registered to a base before  
use.  
Base  
The cradle that stores and charges the handset; it also contains a  
spare battery charger.  
Charger  
During a call  
Handset  
The station is currently on a call or has activated a dial tone.  
The cordless handset that you use to dial and talk to callers.  
The handset is inactive or idle.  
In standby  
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2
Getting Started  
This chapter covers how to prepare the handset for use, basic handset  
operation, and menus.  
Chapter Topics Features  
Features  
ML440 handsets possess the following features:  
• Roaming  
• Seamless handover between bases  
• Programmable feature keys  
• Multi-line capability  
• Call transfer, conference, call forwarding, and call park  
• User-friendly interface with context sensitive soft keys  
• Shared central directory with 200 entries  
• Personal contacts list with up to 100 entries  
• Call log that records the last 50 calls, incoming and outgoing  
• Nine speed dial keys (numbers 2 through 9 on the twelve-key dial pad  
Charging the Battery  
Follow the steps below to charge the battery.  
Step 1 Unpack the handset, battery, and battery cover. If the battery cover is  
already on the handset, press in on the notch and slide the cover down  
and off (Figure 2-1).  
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Getting Started  
Figure 2-1 Remove Battery Cover  
Step 2 Align the battery so that the contacts face the bottom of the handset and  
the flat side faces up (Figure 2-2).  
Figure 2-2 Align Battery  
Step 3 Insert the bottom of the battery first, then lay the battery down and push it  
gently until it snaps into place.  
Step 4 Replace the cover and slide it up into place (Figure 2-3).  
Figure 2-3 Replace Battery Cover  
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Step 5 Connect the charger AC adapter to the charger’s AC jack.  
Step 6 Plug the other end of the adapter into a standard 120V AC power outlet.  
Step 7 Place the handset in the charger with the display facing forward. The  
display on the handset should light up and the charger LED should turn  
on. If it doesn't, reseat the handset or try plugging the AC adapter into a  
different outlet.  
Step 8 Place the spare battery in the back section of the charger. (Pull the  
battery latch back to insert the battery (Figure 2-4).  
Figure 2-4 Spare Battery Placement  
Charge each battery completely (approximately 10 hours) before use.  
NOTE  
Powering on the Handset  
To power up the handset, press and release the End key. (To power  
down the handset, press and hold the End key.)  
Attaching the Belt Clip  
Line up the holes on each side of the handset. Insert the belt clip into  
the holes on each side of the handset. Press down until it clicks.  
To remove the belt clip, pull either side of the belt clip to release the  
tabs from the holes.  
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Getting Started  
Basic Operation  
Keys and Their Functions  
Figure 2-5 provides a diagram of the various keys and their functions.  
Table 2-1lists the key name along with a brief description of its function.  
Figure 2-5 Keys and Their Functions  
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Table 2-1 Key Names and Descriptions  
Key Name (Icon)  
What it Does  
• In standby: start a telephone call.  
Talk  
• During a call: switch to a waiting call.  
• Switch a call to the speakerphone (and back).  
Speaker  
• During a call: hang up.  
End  
• In the menu or any list: go back one screen.  
Select  
• In the menu or any list: select the highlighted item.  
• Open or close the menu.  
Menu  
Soft Keys  
The soft keys automatically change their function based on what  
you are doing. See “Using Soft Keys” on page 2-6".  
Function keys 1 through 4 The four function keys are programmed at the PBX: contact your  
(F1 through F4)  
system administrator for details.  
Four-way key:  
- Up  
- Move the cursor up one line.  
- Move the cursor down one line.  
- Move the cursor to the right.  
- Move the cursor to the left.  
- Down  
- Right  
- Left  
Side Keys:  
Mute  
• During a call: mute the microphone.  
• During a call: increase the call volume.  
Plus  
• During a call: decrease the call volume.  
Minus  
Using the Four-Way Key  
The four-way key (Figure 2-6) can be used in the following ways:  
• Press the top of the key to move the cursor Up.  
• Press the bottom of the key to move the cursor Down.  
• Press the Right side of the key to move the cursor to the right.  
• Press the Left side of the key to move the cursor to the left.  
• Press the center key to Select the currently highlighted item.  
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Getting Started  
Figure 2-6 Four-Way Key  
Using Soft Keys  
Soft keys are controlled by the software. They will automatically change  
their function depending on what you are currently doing.  
The description of the soft key’s current function appears in the bottom  
of the display directly above the corresponding key. If the description for  
a soft key is blank, that key does not currently have a function. Figure  
2-7 is an example of soft key’s description.  
Figure 2-7 Soft Key Description  
Sometimes, the current function of a soft key can duplicate the function  
of a regular key. If this happens, you can press either key.  
Entering Text on the Handset  
To enter text in the handset (for example, entering a name in the  
contact list), press the number key that corresponds to the letter you  
want to enter. Refer to Figure 2-8 for an example.  
• Press the key once to enter the first letter on the number key.  
• Press the key twice to enter the second letter, and three times to  
enter the third.  
• Press the key a fourth time to enter the number on the key.  
• The list of letters for each key appears in the lower right corner of the  
display so you can see what letter you are about to enter.  
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• The handset uses capital letters as the first character and lower case  
letters after that. To switch between upper case characters, lower  
case characters, and numbers, press #.  
To enter a symbol, press 1 to cycle through the available symbols or  
press  
and select the symbol you want to enter.  
Symbol  
• If two letters in a row use the same number key, enter the first letter.  
Wait for the cursor to move to the next position, then enter the  
second letter.  
• Press Select or Save when you're finished.  
• If you make a mistake while entering a name, move the cursor to  
right of the incorrect character and press  
the character to the left of the cursor (like the backspace key on a  
keyboard).  
.The handset deletes  
Clear  
Save  
Figure 2-8 Entering Text  
Reading the Display and Status LEDs  
Display Icons and Their Meaning  
Since the icons appear based on what you are doing with handset, you  
will never see all of the icons at one time. Table 2-2 lists the icons and  
their meaning.  
Table 2-2 Icons  
Icon  
Meaning  
The ringer is turned off. This handset will not ring when a call comes  
in.  
The keys are locked. See “Locking the Keypad” on page 3-6".  
The microphone is muted, and the caller can’t hear you.  
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Getting Started  
Icon  
Meaning  
Battery Status  
The battery is fully charged.  
The battery is more than half charged.  
The battery is about half charged.  
The battery is getting low.  
The battery is very low. Change the battery or put the handset in the  
charger  
The battery is charging.  
Rotating icons  
Signal Status  
The signal from the base is very weak.  
The signal from the base is weak.  
The signal from the base is good.  
The signal from the base is strong.  
The signal from the base is excellent.  
LED States and Their Meaning  
Table 2-3 lists the charger LEDs and provides a brief description of their  
meaning.  
Table 2-4 lists the handset LEDs and provides a brief description of their  
meaning.  
Table 2-3 Charger LEDs  
Charger LEDs  
Meaning  
-On: the handset is properly seated in the charger.  
HANDSET STATUS  
BATTERY STATUS  
-Off: the handset is not in the charger or is not properly seated.  
-On: the spare battery is charging.  
-Off: the spare battery is completely charged.  
Table 2-4 Handset LEDs  
Handset LEDs  
Meaning  
-Slow Flashing (Red) - Voice Mail Message Waiting.  
STATUS  
- Fast Flashing (Red) - Handset is ringing.  
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Handset LEDs  
Meaning  
F1 (in function key 1)  
F2 (in function key 2)  
F3 (in function key 3)  
F4 (in function key 4)  
These four LEDs are controlled by the PBX: contact your system  
administrator for information on the available LED states and what  
each one means.  
Configuring the STATUS LED on the Handset  
The STATUS LED at the top of the handset has three available colors:  
red, green and yellow; green and yellow are configurable by the user.  
You can specify what color the STATUS LED turns when you miss a call,  
have a new voice message, or need to recharge the battery. Follow the  
steps below the configure the STATUS LED.  
Step 1 Press Menu to open the main menu screen.  
Step 2 Select the General Settings icon, then select LED signal.  
Step 3 Select Green LED, then choose what you want the green LED to mean.  
Step 4 Press End to go back one menu level, then repeat the same selection  
with the Yellow LED.  
Step 5 For future reference, use Table 2-5 to record your settings. For example,  
if you set the LED to turn yellow when you miss a call, place an X under  
Missed call on the YELLOW LED row.  
Table 2-5 STATUS LED Settings  
LED Color  
Missed Call  
Voice Mail  
Low Battery  
None (Off)  
GREEN  
YELLOW  
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Getting Started  
Using the Menus  
Main Menu Screen  
To open the menu, press Menu. The handset displays the main menu  
screen (Figure 2-9).  
• Use the four-way key to move the cursor and highlight items. When  
you highlight each item, the handset shows the current setting for  
that item in the display.  
To select the highlighted item, press Select.  
To go back one level in the menu, press End.  
• If you don't press any keys for 1 minute, the handset exits the menu.  
Figure 2-9 Main Menu Screen  
Contacts Screen (Local Contacts)  
The main Contacts screen shows the list of contacts stored locally on  
this handset. When you highlight a contact, you can use one of the soft  
keys described in Table 2-6.  
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Table 2-6 Contacts and Soft Keys  
Soft Key  
Operation  
Dial the phone number showing on the display. (Press Right to  
scroll through each phone number saved for this contact.)  
Edit the selected contact’s information.  
See more options for the contact list.  
Edit  
More  
To see options for the contact list, press  
. These options are  
described in Table 2-7.  
Table 2-7 Contact List More Options  
Add a contact to the list. You can enter the following information:  
• Name  
• Up to four phone numbers (Work, Mobile, Home, and Other); you  
must enter at least one phone number.  
Add contact  
• Ringtone  
If the contact list is empty, this is the only available option.  
Edit the selected contact’s phone number before you dial it. This will  
not edit the number in the contact’s list.  
Edit before call  
Edit contact  
Delete contact  
Delete all contacts  
Speed dial  
Edit the selected contact’s information.  
Delete the selected contact.  
Erase the entire contact list.  
Assign the selected contact to a speed dial number.  
Central Directory Screen (Global Contacts)  
The main Central Directory screen shows the list of contacts stored  
globally on the system. When you highlight a contact in the directory,  
press  
to dial that contact.  
Calls Screen  
The main Calls screen shows the last 50 calls (whether incoming or  
outgoing) on this handset. When you highlight a call on the list, you can  
use one of the soft keys listed in Table 2-8.  
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Getting Started  
Table 2-8 Calls Screen Soft Keys  
Soft Key  
Operation  
Return the selected call.  
See more details about the selected call.  
See more options for the call list.  
More  
To see options for the call list, press  
described in Table 2-9.  
. These options are  
Table 2-9 Call List More Options  
View details about the call such as who it was from, the CID  
information if available, was it answered or missed, and the time and  
date of the call.  
View Details  
Add the name and phone number from the selected call record as a  
new contact.  
Save as contact  
Add the number from the selected call record to an existing contact;  
the handset prompts you to select a contact and phone number slot.  
Append to contact  
Edit before call  
Delete item  
Edit the selected phone number before you dial it.  
Delete the selected call record.  
Delete all items  
Erase all records from call list.  
Connectivity Screen  
The operations on this screen require administrator-level access to the base.  
Contact your system administrator before selecting any of these operations. See the  
ML440 and AP20 System Installation Guide for more information.  
NOTE  
Table 2-10 and Table 2-11 provide a list of the available operations and  
a brief description.  
Table 2-10 Connectivity Screen Operations  
Register the handset to a base. This option only functions if the  
handset is not currently registered and displays a Deregistered  
message  
Register  
Clear the handset's registration information. Once the handset is  
deregistered, it will not function until it is registered to a base.  
Deregister  
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Table 2-11 Settings Screen Operation  
Select the format you prefer for time and date display:  
• Time format: Select 24 hour or AM/PM  
Time & Date  
• Date format: Select one of six standard data formats  
Select the handset's display language. As you highlight each  
language, the display changes to that language. When you see the  
language you want to use, press Select.  
Language  
LED signal  
Configure what color the STATUS LED turns when you miss a call,  
have a new voice message, or need to recharge the battery. See  
• Automatic keylock: Lock the keypad when the handset remains  
idle for a designated period of time.  
Security  
• Change PIN: Change the 4-digit PIN used for registration and  
deregistration.  
Handset name  
Reset settings  
Change the name the handset displays on the standby screen.  
Reset all the options on this handset to factory default values (see  
The status screen displays the following information (you will have  
to scroll down to see all the fields):  
• The hardware version and software version of the base this  
handset is registered to.  
Status  
• The hardware version and the software version of this handset.  
• The current band DECT radio band the handset is operating in.  
Choose how you want the handset to answer incoming calls:  
Normal (default): you must press Talk to answer calls.  
Any key: you can press any key to answer calls.  
Auto answer  
Automatic: the handset answers all calls after 5 seconds.  
Choose how the handset responds to incoming calls while it is  
charging:  
Off: The handset rings normally and displays the incoming call  
screen.  
Silent charging  
Disconnect: The handset does not respond to incoming calls at all.  
Silent: The handset does not ring, but it does display the incoming  
call screen.  
The audio screen is where the volume and ringer tone are set. Table 2-  
12 describes the functions and how to use them.  
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Getting Started  
Table 2-12 Audio Screen Settings  
Set the ringer volume. Press Up to raise the volume and Down to  
Ring volume  
Ring melody  
Alert volume  
Alert tone  
lower the volume. Press Select or  
the volume setting.  
when you're satisfied with  
Choose this handset's ring melody. As you highlight each ring  
melody, press to hear a sample. When you hear the melody  
you want, press Select.  
Set the volume for notification tones. Press Up to raise the volume  
and Down to lower the volume. Press Select or  
satisfied with the volume setting.  
when you're  
Choose the tone this handset uses for alerts and notifications. As  
you highlight each tone, press  
hear the tone you want, press Select.  
to hear a sample. When you  
Have the handset vibrate on an incoming call or a notification. Select  
one of the following:  
• Off: The handset will not vibrate at all.  
• Vibrate then ring: The handset will vibrate first, then sound the  
tone or melody on the second ring.  
Vibrator  
• Vibrate only: The handset will only vibrate, not ring.  
• Vibrate and ring: The handset will vibrate and ring at the same  
time.  
Have the keypad sound a tone when you press a key. Choose one  
of two sounds (Click or Tone) or select Silent to turn off the keypad  
Key sound  
tone off. The tone will be activated after you press Select or  
.
Press  
if you want the handset to sound a tone each time you  
to disable this tone.  
Confirmation sound  
change a setting. Press  
Press  
if you want the handset to sound a warning when you  
Coverage warning  
Charger warning  
approach the edge of the base’s range. Press  
tone.  
to disable this  
Press  
if you want the handset to sound a warning when the  
to disable this tone.  
battery is getting low. Press  
Alarm Screen  
See “Setting the Alarm” on page 3-7" for more information on setting  
alarms on the handset. Table 2-13 lists the types of alarms and provides  
a brief description.  
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Table 2-13 Alarm Screen Settings  
Set a one-time alarm on this handset. Enter the time you want the  
alarm to sound and press  
Set an alarm to sound on specific days of the week. Enter the time  
Alarm  
.
Recurrent alarm  
Snooze time  
you want the alarm to sound and press Press  
. The handset  
then prompts you to select which days you want the alarm to sound.  
Select the amount of time alarms remain snoozed before ringing  
again. Choose from 1 through 10 minutes, in one minute  
increments; the default is 10 minutes.  
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3
Using Common Features  
This chapter covers common features associated with the ML440  
handset and contains the following topics.  
Chapter Topics • Making, Receiving, and Transferring Calls  
• Changing the Volume  
• Using the Call Lists  
• Using the Contact List and Central Directory  
• Voice Mail Waiting Indicator  
• Using an Optional Headset  
• Locking the Keypad  
• Changing the PIN  
• Using Alarms  
Making, Receiving, and Transferring Calls  
Table 3-1 below lists ways to perform common actions from both the  
earpiece and a speakerphone.  
Table 3-1 Make, Receive, Transfer Calls  
To.....  
Make a call  
Answer a call  
Hang up  
From the earpiece  
From the speakerphone  
Press Talk then dial the number.  
Press Talk.  
Press Speaker then dial the number.  
Press Speaker.  
Press End.  
Mute the microphone during a call Press Mute. Press again to turn the microphone back on.  
• During a call, press  
.
• Enter the extension to which you want to transfer the call.  
• Wait until the other extension answers and press End.  
• OR  
Transfer a call  
• If you don't want to wait until the other extension answers, just press End  
immediately.  
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Using Common Features  
To.....  
From the earpiece  
From the speakerphone  
• During a call, press  
.
• Enter the extension with which you want to conference.  
Start a conference call  
• Wait until the other extension answers, then press  
conference.  
to start the  
Switch between the speakerphone  
and earpiece  
Press Speaker.  
Putting a Call on Hold  
Press  
. If the call remains on hold for longer than the hold time, it  
rings again.  
To return to a call on hold:  
• For an internal call, press the Intercom Feature Key.  
• For an external call, press the line key.  
Feature Keys are programmed in the DSX. See your system administrator for more  
details.  
NOTE  
Changing the Volume  
Earpiece and Speaker Volume  
Each handset has individual volume settings for the earpiece, the  
speakerphone, and the headset jack: press Plus to increase the volume  
of the item you are currently listening to and Minus to decrease it. The  
handset saves the volume setting.  
Ring Volume  
You can also set the ring volume for each handset. When the handset is  
in standby, press Menu, select Audio Settings then Ring Volume.  
Use the Left and Right cursor key to increase or decrease the ring  
volume. If you turn the ring volume all the way down, the ringer turns  
off.  
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Using Common Features  
3-3  
Using the Call Lists  
The handset saves the last 50 calls (whether incoming or outgoing) to  
the call list. Table 3-2 lists actions and the steps to perform that action.  
Table 3-2 Call Lists Actions  
To....  
Press  
Press  
to see all calls on the lists. Use Right and Left to  
select the specific call list you want to review:  
Open the call list  
• Answered calls  
• Dialed calls (numbers dialed from this handset)  
• Missed calls  
Press Down to scroll through the list from newest to oldest. Press  
Scroll through the list  
See details on a call  
Up to scroll from oldest to newest.  
Highlight the call record in the list and press  
(Answered and Dialed calls only) Highlight the call record you want  
to dial and press Talk or  
• Highlight the call record and press  
.
Dial a number  
.
.
• Select Append to a contact to add this phone number to an  
existing contact.  
Add a number to the contact list  
OR  
• select Add to contact list to create a new contact for this call  
record  
Press  
. Select Delete item to erase the selected call record;  
Delete records from the call list  
Close the list  
select Delete all items to erase all records on the list.  
Press End.  
Using the Contact List and Central Directory  
Table 3-3 lists characteristics of both the local Contact List and global  
Contact List.  
Table 3-3 Contact List Characteristics  
Contact List (local)  
Central Directory  
• Up to 100 entries  
• Up to 200 entries  
• Shared by all users on the system  
• Unique to each handset  
• Stored locally: can be edited by the end user of • Stored on the system  
the handset  
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Using Common Features  
Functions Common to Both Lists  
Table 3-4 lists the functions that are common between the contact list  
and the central directory.  
Table 3-4 Common Functions  
To...  
From the contact list... From the central directory...  
Open the main menu and select Open the main menu and select  
Open or close the list  
the Contacts icon.  
the Central Directory icon.  
Press Down to scroll through the contact list from A to Z or Up to  
scroll from Z to A.  
Scroll through the entries  
Jump to entries that start with a Press the number key corresponding to the letter you want to jump  
certain letter  
to.  
Dial a contact  
Find the contact you want, and press  
or Talk.  
Local Contact List Functions  
Adding Contacts  
Follow the steps below to add contacts to the local contact list.  
Step 1 Open the main menu screen and select the Contacts icon.  
Step 2 Press  
and select Add contact. (If the contact list is empty, this is  
the only available option.)  
Step 3 Select Name and enter the name you want to use for this contact.  
Step 4 Select one of the four phone number slots (Work, Mobile, Home, or  
Other) and enter the phone number you want to use for this contact. You  
must enter at least one phone number, but it doesn't matter which of the  
slots you use.  
Step 5 To set a special ringtone for this contact, select Ringtone and choose the  
ringtone you want the handset to use when this contact calls. (To hear a  
sample of the ringtone, press  
.)  
Deleting Contacts  
Follow the steps below to delete contracts from the local contact list.  
Step 1 Open the main menu screen and select the Contacts icon.  
Step 2 Highlight the contact you want to erase and press  
.
Step 3 To erase this contact only, select Delete contact; to erase all contacts  
from this local list, select Delete all contacts.  
Step 4 When the handset prompts you to confirm, press  
.
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Using Common Features  
3-5  
Editing a Contact’s Phone Number Before Dialing  
Follow the steps below to edit a contact’s phone number before dialing.  
Step 1 Open the main menu screen and select the Contacts icon.  
Step 2 Highlight the contact you want to erase and press  
.
Step 3 Select Edit before dial, then edit the phone number.  
Step 4 When you're finished editing the number, press  
or Talk.  
This will not change the phone number stored in the contact list.  
NOTE  
Assigning Contacts to a Speed Dial Number  
You can assign one of eight number keys on the twelve key dial pad (2  
through 9) to a contact and use it as a speed dial. Follow the steps  
below to perform this procedure.  
Step 1 Open the main menu screen and select the Contacts icon.  
Step 2 Highlight the contact you want to assign, and press  
.
Step 3 Select Speed dial. The handset shows the list of speed dial numbers and  
what contacts are assigned.  
Step 4 Select the speed dial number you want to assign this contact to and  
press  
. If the number you select is already assigned, press  
to erase the existing assignment or press  
assignment with the new contact.  
to overwrite the  
Making a Call From a Speed Dial Number  
Press and hold the number key that you assigned the contact to. The  
handset automatically dials the first phone number on that contact  
record.  
Voice Mail Waiting Indicator  
When you have new messages, the STATUS LED turns green or yellow,  
according to the settings you selected in the LED signal menu (see  
listen to all new messages, the STATUS LED turns off.  
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3-6  
Using Common Features  
Using an Optional Headset  
You can use a standard 2.5 mm telephone headset with your handset.  
To install a headset, remove the headset jack cover and insert the  
headset plug into the jack (Figure 3-1).  
Figure 3-1 Installing a Headset  
Make and receive calls as usual, and plug in your headset to talk to the  
caller after the call connects.  
When you connect a headset, the handset automatically mutes the  
earpiece and speaker. To re-activate the earpiece, just unplug the  
headset. To switch to speaker handset, press Speaker.  
Locking the Keypad  
While the keys are locked, you will not be able to use any handset functions that  
require a key press, including making and receiving calls. You can still dial  
emergency numbers (911) while the keys are locked.  
NOTE  
Follow the steps below to lock the keypad.  
Step 1 From the main menu screen, select the Settings icon.  
Step 2 On the Settings screen, select Security, then select Automatic keylock.  
Step 3 Select the amount of time (from 15 seconds to 5 minutes) you want the  
handset to wait before it locks the keypad, or select Off to have the  
handset never lock the keypad.  
If the handset is idle for the amount of time you selected, it locks the  
keys. To unlock the keypad, press Select followed by *. The keypad will  
remain unlocked until it remains inactive for the amount time selected  
above.  
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Using Common Features  
3-7  
Changing the PIN  
Changing the PIN will prevent the handset from deregistering correctly (not  
registering correctly).  
NOTE  
Follow the steps below to change the PIN. You will have to enter the PIN  
to reset the handset back to factory default settings.  
Step 1 From the main menu screen, select the Settings icon.  
Step 2 On the Settings screen, select Security.  
Step 3 Select Change PIN. The handset prompts you to enter the current PIN  
(Default 0000).  
Step 4 Enter the four digits of the current PIN and press Select. The handset  
prompts you to enter the new PIN.  
Step 5 Enter the four digits you want to use as the new PIN and press Select.  
Using Alarms  
You can set two alarms on your handset: a one-time alarm and a  
recurring alarm.  
Setting the Alarm  
Follow the steps below to set the alarm.  
Step 1 From the main menu screen, select the Alarms icon.  
Step 2 For a one-time alarm, select Alarm; for a repeating alarm, select  
Recurrent alarm.  
Step 3 Set the time you want the alarm to sound.  
—Enter the time using the twelve-key dial pad, or use Up and Down to  
select the time.  
—Select AM or PM.  
—Press  
when you're finished.  
Step 4 For a recurrent alarm, the handset prompts you to select the days of the  
week you want the alarm to sound.  
To select a day, highlight the day and press  
show a check mark beside the name.  
; selected days  
.
To clear a day, highlight the day and press  
—When you're finished, press  
.
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3-8  
Using Common Features  
Step 5 Select Snooze time to change how long the handset waits when you  
snooze an alarm. Choose from 1 minute through 10 minutes, in one-  
minute increments. (The default is 10 minutes.)  
Step 6 When the alarm rings, press  
to silence the alarm; press  
if you want the alarm to ring again after 10 minutes. (To change the  
length of time the handset waits, select Snooze time and choose from 1  
minute through 10 minutes, in one-minute increments.)  
Step 7 One-time alarms automatically turn themselves off after ringing.  
Recurring alarms will ring again on the next selected day. To turn off an  
alarm, select the alarm and press  
.
ML440 End User Guide - Revision 1  
4-1  
4
Important Information  
This chapter contains important information regarding adapter and  
battery settings, compliance information, and warranty information.  
The following topics are included in this chapter:  
AC Adapter and Battery Information  
Table 4-1 provides adapter and battery information.  
Table 4-1 Adapter/Battery Information  
AC Adapter  
Part number  
Input voltage  
Output voltage  
120V AC, 60 Hz  
8V AC @ 300mA  
Battery Pack  
Part number  
Capacity  
500mAh, 2.4V DC  
• Use only the supplied AC adapters. Be sure to use the proper adapter  
for the base and any chargers.  
• Do not place the power cord where it creates a trip hazard or where it  
could become chafed and create a fire or electrical hazard.  
• Do not place the base in direct sunlight or subject it to high  
temperatures.  
• Fully charged, the battery should provide about 8 hours of talk time  
and about 7 days of standby time. For best results, return the handset  
to the charger after each call to keep it fully charged.  
• When the battery gets too low, the handset shows a low battery alert.  
If you hear a strange beep during a call, check the display: if you see  
the low battery alert, finish your conversation as quickly as possible  
and return the handset to the charger. If the handset is in standby,  
none of the keys will operate.  
ML440 End User Guide - Revision 1  
     
4-2  
Important Information  
• With normal use, the battery should last about one year. Replace the  
battery when the talk time becomes short even when the battery is  
charged.  
Rechargeable Battery Information  
out  
Risk of explosion if battery is replaced by an incorrect type! Dispose of used  
batteries according to the instructions. Do not open or mutilate the battery.  
Disconnect the battery before shipping this product.  
CAUTION  
• This equipment contains a rechargeable Lithium-Ion (Li-Ion) battery.  
• The battery is not user-serviceable. Do not attempt to open the  
battery cell. In case of exposure to the cell contents, wash the  
affected area thoroughly and seek medical attention.  
• Do not expose the battery to temperatures in excess of 140º F (60º  
C).  
• Do not short-circuit the battery.  
• Exercise care when handling the battery around conducting materials  
such as rings, bracelets, and buttons: conducting materials can short  
the battery, and the battery or conductor can overheat and cause  
burns.  
• When charging this equipment, only use the charger designed to  
charge the battery pack as specified in the owner's manual: using any  
other charger may damage the product or cause the battery pack to  
explode.  
• Before placing the handset in the charger, make sure the battery is  
installed and the battery cover is securely in place.  
• Do not place the batteries in your regular trash. All batteries must be  
recycled or disposed of in an environmentally sound manner. Contact  
your local waste management officials for information and regulations  
on the proper collection, recycling, and disposal of batteries.  
Rechargeable batteries must be recycled or disposed of properly.  
NOTE  
Troubleshooting  
If you have any trouble with your handset, try the steps listed in Table  
4-2.  
ML440 End User Guide - Revision 1  
   
Important Information  
4-3  
Table 4-2 Troubleshooting Handset Issues  
If....  
Try....  
A handset can’t make or receive calls  
A handset can make calls, but it won’t ring  
Moving the handset closer to the base  
Make sure the ringer is turned on  
• Charging the battery for 15-20 hours  
• Checking the battery connection  
A handset is not working  
A handset displays Searching  
Moving the handset closer to the base  
Weak or Hard to Hear Audio  
If a caller's voice sounds weak or soft, the signal might be blocked by  
large metal objects or walls; you might also be too far from the base, or  
the handset's battery may be weak.  
Try moving around while you're on a call or moving closer to the base  
to see if the sound gets louder.  
• Make sure the handset's battery is fully charged.  
Try adjusting the earpiece volume.  
Noise or Static on the Line  
Interference is the most common cause of noise or static on a cordless  
handset. Here are some common sources of interference:  
• electrical appliances, especially microwave ovens  
• computer equipment, especially wireless LAN equipment and DSL  
modems  
• radio-based wireless devices, such as room monitors, wireless  
controllers, or wireless headsets or speakers  
• florescent light fixtures (especially if they give off a buzzing noise)  
• other services that use your handset line, like alarm systems,  
intercom systems, or broadband Internet service  
Table 4-3 lists steps for eliminating noise on the line.  
Table 4-3 Static or Noise Reduction  
If the static is on 1 handset or in 1  
location  
If the static is on all handsets or in all  
locations  
Check nearby for one of the common interference Check near the base for the source of  
sources  
interference  
Try moving the handset away from a suspected  
source, or try moving the suspected source to it’s  
not between the handset and the base.  
Trying moving the base away from a suspected  
source, or turn off the source if possible.  
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4-4  
Important Information  
If the static is on 1 handset or in 1  
location  
If the static is on all handsets or in all  
locations  
There is always more noise at the edges of the  
base’s range. If the handset displays Searching,  
try moving closer to the base.  
Resetting Handsets  
You can reset all the handset options back to the default values; any  
customized settings (language, ring tones, volume, etc.), will be lost.  
(Resetting a handset will not deregister the handset from its base.)  
Follow the steps below to reset the handset.  
Step 1 On the handset, press Menu.  
Step 2 From the main menu screen, select the Settings icon.  
Step 3 On the Settings screen, select Reset settings.  
Step 4 When the handset asks you to confirm, press  
press or to cancel.  
to continue the reset;  
Step 5 When the handset asks you to enter the PIN, enter the 4-digit code used  
to access this handset. (Default 0000)  
Step 6 The handset reboots and restores all user settings to their default value.  
Compliance Information  
FCC Part 15 Information  
Note: This equipment has been tested and found to comply with the  
limits for a Class B digital device, pursuant to part 15 of the FCC Rules,  
which establishes limits to provide reasonable protection against  
harmful interference in a residential installation. This equipment  
generates and can radiate radio frequency energy; if not installed and  
used in accordance with the instructions, it may cause harmful  
interference to radio communications. However, even in proper  
installations, there is no guarantee that interference will not occur. If  
you suspect this equipment is causing harmful interference to a radio or  
television receiver, try to correct the interference through the following  
steps:  
Step 1  
Turn the equipment off and on to confirm interference.  
Step 2 Increase the separation between this equipment and the receiver.  
Step 3 Connect this equipment to an outlet on a different circuit from that to  
which the receiver is connected.  
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Important Information  
4-5  
Step 4 Reorient or relocate the antenna on the receiver.  
Step 5 Consult the dealer or an experienced radio/TV technician for help.  
Changes or modifications not expressly approved by the party responsible for  
compliance could void your authority to operate this equipment.  
IMPORTANT  
RF Exposure Information  
This product complies with FCC radiation exposure limits under the  
following conditions:  
• The base must be placed to allow a minimum of 20 cm (8 inches)  
between the antenna and all persons during normal operation.  
• The base must not be co-located or operated in conjunction with any  
other antenna or transmitter.  
• The handset is designed for body-worn operation and meets FCC RF  
exposure guidelines when used with any belt clip, carrying case, or  
other accessory supplied with this product.  
• All necessary accessories are included in the package; any additional  
or optional accessories are not required for compliance with the  
guidelines.  
• Third party accessories (unless approved by the manufacturer) should  
be avoided as these might not comply with FCC RF exposure  
guidelines.  
Industry Canada (I.C.) Notice  
The term IC before the radio certification number only signifies that  
Industry Canada technical specifications were met. Operation is subject  
to the following two conditions: (1) this device may not cause  
interference, & (2) this device must accept any interference, including  
interference that may cause undesired operation of the device. "Privacy  
of communications may not be ensured when using this telephone".  
ML440 End User Guide - Revision 1  
 
4-6  
Important Information  
ML440 End User Guide - Revision 1  
For additional information or support on this NEC Corporation of America  
product, contact your NEC Corporation of America representative.  
NEC  
NEC Corporation of America  
ML440 End User Guide  
NDA-31193, Revision 1  

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