NEC Univerge MH250 User manual

MH250
USER’S GUIDE
NEC Infrontia Corporation
2007 July
NWA-019391-001
ISSUE 2

LIABILITY DISCLAIMER
NEC Infrontia Corporation reserves the right to change the specifications,
functions, or features, at any time, without notice.
NEC Infrontia Corporation has prepared this document for use by its
employees and customers. The information contained herein is the property
of NEC Infrontia Corporation and shall not be reproduced without prior
written approval from NEC Infrontia Corporation. All brand names and
product names on this document are trademarks or registered trademarks of
their respective companies.
Copyright 2007
NEC Infrontia Corporation

1.
User Safety Protocol
Important: Read this information before using your MH250 Handset.
Observe the following instructions to use this product safely, prevent you and other people from possible injury, and
protect properties. Improper handling may cause heat, explosion, and fire.
Danger
Recharge the battery with the matching battery charger (see battery label description).
Use the battery only for this MH250 handset system. Do not use it with other electrical devices.
Keep the following warnings to prevent the battery pack from heating, explosion, and fire.
• Do not throw the battery pack into fire.
• Do not solder the battery pack directly.
• Do not short the positive (+) and negative (-) terminal of the battery pack with metal.
• Do not poke the battery nor smash it with hammer.
Do not disassemble nor modify the battery pack. It has a safety circuit and a damaged circuit may cause heat,
explosion, and fire.
The internal liquid of the battery pack has strong acid. If the battery liquid gets into your eye, rinse your eye well
with water and consult with a doctor.
Do not use, leave, nor recharge the battery pack near fire or under the direct sunlight. High temperature may
damage the internal safety circuit and may cause malfunction of the recharge, heat, explosion, or fire.

1.
Warning
Do not use the unit when you notice smoke, strange smell or other unusual happenings. It may cause fire if you
continuously use them. Turn off the power switch of the phone system immediately. For the recharger, disconnect
the power plug immediately. Confirm that smoke is ceased, and then contact the nearest NEC service office.
Never attempt to repair those units by yourself.
If you had an accident such as dropping the phone and broke the unit, turn off the power of the phone system
immediately. For the recharger, disconnect the power plug immediately. Contact the nearest NEC service office.
If you keep using those units, they may cause fire or electrical shock.
If water smeared into the unit, turn off the power of the phone system immediately. For the recharger, disconnect
the power plug immediately. Contact with the nearest NEC service office. If you keep using those units, they may
cause fire or electrical shock.
Do not insert flammable or metal objects into the units. If a foreign object were accidentally placed into the units,
turn off the power of the phone system and plug out the power adapter. Contact the nearest NEC service office.
If you keep using those units, they may cause fire or electrical shock. Pay special attention to children to prevent
from similar accidents.
Do not attempt to disassemble nor modify the units. It may cause fire, electrical shock, or system malfunction.
Modification by a user is prohibited by law.
Do not open the units intentionally. It may cause electrical shock or system malfunction. Ask test adjustment,
and repair of the units for the nearest NEC service office.
Do not twist, put a heavy object, and push the phone system. Such actions may cause damage, fire, or injuries.
Do not place a container with water such as a vase, a plant pot, a cup, cosmetics, chemicals, nor a small metal
object. Splashing water over the units and foreign metal object inserted into the units may cause fire or electrical
shock.
Do not use the unit in a high humid area such as a bathroom or near a humidifier. They may cause fire, electrical
shock, or system malfunction.
Use the specified power adapter, which is attached to the unit. Other adapters may cause fire or system
malfunction.
Do not damage, or modify the power adapter cord. Do not kink, pull, twist, or bundle it. Do not put a heavy object

1.
or heat it. They may cause fire, electrical shock, or system malfunction. Contact the nearest NEC service office
for a damaged adapter cord.
Do not touch the power plug with a wet hand. It may cause electrical shock or system malfunction.
Do not touch the units or replace a battery with a wet hand. It may cause electrical shock or system malfunction.
When you hear thunder during using the phone system outside, immediately stop using it and move to a safe
place.
Do not use multiple plugs to a single outlet. It may cause fire or electrical shock.
Follow the instruction below when you use a battery pack. They may cause heating, explosion, and fire;
• Do not put the battery pack into a microwave oven or a pressure chamber.
• Do not use other batteries with this battery pack.
If the internal battery liquid clung to your skin or clothes, immediately rinse it with clean water to prevent
chemical damage to your skin and clothes.
Do not use the phone or recharge the battery in a place where fire or explosion may occur.
• This phone system does not have explosion protection. Do not use it where a flammable gas such as propane and
gasoline are stored. Turn off the power of the phone immediately. Do not recharge the battery in such a place.
Do not use near microwave ovens, medical equipment and industrial equipment.

1.
This page is for your notes.

1.
FCC portion
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. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
Caution:
Any changes or modifications not expressly approved by the party responsible for product compliance could void
the user's authority to operate the equipment.
To comply with FCC RF exposure compliance requirements, this device must not be co-located or operating in
conjunction with any other antenna or transmitter.

1.
Industry Canada Portion
Canada Regulatory Compliance Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numériquéde la classe B est conforméàla norme NMB-003 du Canada.
For Customers in Canada
This device complies with RSS 210 of Industry Canada (IC).
Operation is subject to the following two conditions:
• this device may not cause interference, and
• this device must accept any interference, including interference that may cause undesired operation of this
device.
L’utilisation de ce dispositif est autorisée seulement aux conditions suivantes :
• il ne doit pas produire de brouillage et
• l’ utilisateur du dispositif doit étre prêt a accepter tout brouillage radioélectrique reçu, même si ce brouillage
est susceptible de compromettre le fonctionnement du dispositif.
Exposure to radio frequency radiation
The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not emit RF
field in excess of Health Canada limits for the general population; consult Safety Code 6, obtainable from Health
Canada’s website at www.hc-sc.gc.ca/rpb.

1.
European Union Information
Notice to the user
The handset described in this manual is intended to be used in combination with the NEC Assured Mobility concept
for Wireless Local Area Networks.
Country specific limitations
Italy
General authorization is required when this handset is used outside own premises.
For more information contact: www.comunicazioni.it
Declaration of conformity
Hereby, “NEC Philips Unified Solutions”, declares that this MH250 is in compliance with the essential requirements
and other relevant provisions of Directive 1999/5/EC.
http://www.nec-philips.com/doc
0984
0560
0984
0560

1.
European Union information
Product disposal information
For countries in the European Union
The symbol depicted here has been affixed to your product in order to inform you that
electrical and electronic products should not be disposed of as municipal waste. Electrical
and electronic products including the cables, plugs and accessories should be disposed of
separately in order to allow proper treatment, recovery and recycling. These products should
be taken to a designated facility where the best available treatment, recovery and recycling
techniques are available. Separate disposal has significant advantages: valuable materials can
be re-used and it prevents the dispersion of unwanted substances into the municipal waste
stream. This contributes to the protection of human health and the environment. Please be
informed that a fine may be imposed for illegal disposal of electrical and electronic products
via the general municipal waste stream.
In order to facilitate separate disposal and environmentally sound recycling arrangements have been made for local
collection and recycling. In case your electrical and electronic products need to be disposed of please refer to your
supplier or the contractual agreements that your company has made upon acquisition of these products.
At www.nec-philips.com/weee you can find information about separate disposal and environmentally sound
recycling.
For countries outside the European Union
Disposal of electrical and electronic products in countries outside the European Union should be done in line with
the local regulations. If no arrangement has been made with your supplier, please contact the local authorities for
further information.
Battery information
Defect or exhausted batteries should never be disposed of as municipal waste. Return old batteries to the battery
supplier, a licensed battery dealer or a designated collection facility. Do not incinerate batteries. This product uses
Lithium-Ion batteries. Do not use any other type.
For battery replacement or removal instructions please refer to the related chapter in this manual.

1.
Regulatory Notices for Taiwan
Other Information for Taiwan
MH250 operating frequency and transmission power for Taiwan are as follows.
• Operating Frequency: 2,400 ∼2,483.5 GHz
• Transmission Power: Maximum 20 mW

1.
This page is for your notes.

i
TABLE OF CONTENTS
1.INTRODUCTION
•WAT IS MH250? ................................................................................. 1
•KEYS AND PARTS ............................................................................. 2
•ICONS ................................................................................................. 3
•STANDBY MODE................................................................................ 4
•MAIN MENU........................................................................................ 4
2.GETTING STARTED
•HOW TO INSERT THE BATTERY...................................................... 5
•HOW TO REPLACE THE BATTERY .................................................. 5
•HOW TO CHARGE THE BATTERY.................................................... 6
3.BASIC OPERATION
•TO TURN ON THE PHONE (STANDBY MODE) ................................ 9
•TO TURN OFF THE PHONE .............................................................. 9
•TO ANSWER A CALL ......................................................................... 10
•TO MAKE A CALL............................................................................... 10
•TO PLACE A CALL ON HOLD............................................................ 10
•TO TRANSFER A CALL...................................................................... 11
•TO REDIAL (LAST NUMBER REDIAL)............................................... 11
•TO USE HEADSET ............................................................................. 12
4.FEATURES
•TO USE CALL FORWARDING - ALL CALLS ..................................... 13
•TO USE CALL FORWARDING - DON’T ANSWER ............................ 13
•TO USE CALL FORWARDING - NO RESPONSE.............................. 14
•TO USE CALL FORWARDING - BUSY .............................................. 14

ii
TABLE OF CONTENTS
•TO USE CALL PICKUP....................................................................... 14
•TO USE CALL PARK .......................................................................... 15
•TO USE CALL BACK .......................................................................... 15
•TO USE CALL WAITING..................................................................... 15
•TO USE CONFERENCE..................................................................... 16
•TO ADJUST CALL VOLUME .............................................................. 16
5.CALL LOG
•TO VIEW CALL LOG........................................................................... 17
•TO MAKE A CALL FROM CALL LOG................................................. 19
•TO ADD PHONE NUMBER TO PHONE BOOK ................................. 19
•TO DELETE A CALL LOG................................................................... 21
•TO DELETE ALL CALL LOGS ............................................................ 21
6.PHONE BOOK
•TO VIEW PHONE BOOK .................................................................... 23
•TO EDIT GROUP NAME..................................................................... 25
•TO ADD A NEW ENTRY..................................................................... 26
•TO DELETE A RECORD..................................................................... 27
•TO MAKE A CALL............................................................................... 28
•TO EDIT AN ENTRY ........................................................................... 29
•TO CREATE A SHORT MESSAGE .................................................... 30
7.SPEED DIAL
•TO USE SPEED DIAL......................................................................... 33
•TO ADD NEW ENTRY/EDIT ............................................................... 34
•TO ADD NEW ENTRY FROM PHONE BOOK.................................... 36
•TO DELETE AN ENTRY ..................................................................... 37

iii
TABLE OF CONTENTS
8.SETTING
•DISPLAY BACKLIGHT........................................................................ 39
•ALERT SETTING ................................................................................ 39
•COURTESY MODE............................................................................. 40
•RING/VIBRATOR ................................................................................ 41
•RING VOLUME ................................................................................... 42
•CALL VOLUME ................................................................................... 43
•KEY CLICK TONE............................................................................... 45
•MUSIC SELECT.................................................................................. 46
•RTP ALARM........................................................................................ 47
•HANDOVER TONE ............................................................................. 48
•DATE AND TIME ADJUSTMENT........................................................ 49
•DATE FORMAT................................................................................... 50
•TIME FORMAT.................................................................................... 51
•DAYLIGHT SAVING............................................................................ 52
•TIME ADJUSTMENT MEANS ............................................................. 53
•SNTP QUERY TIME............................................................................ 54
•TIME OFFSET..................................................................................... 55
•PASSWORD ....................................................................................... 56
•LANGUAGE ........................................................................................ 57
9.DEVICE INFO
•TO DISPLAY DEVICE INFO ............................................................... 59
10.LOCK/UNLOCK
•TO LOCK THE PHONE....................................................................... 61
•TO UNLOCK THE PHONE.................................................................. 62

iv
TABLE OF CONTENTS
11.PRESENCE
•TO CHANGE PRESENCE .................................................................. 63
•TO VIEW PRESENCE......................................................................... 64
12.SHORT MESSAGE
•SHORT MESSAGE INDICATION ....................................................... 65
•TO VIEW SHORT MESSAGE............................................................. 65
•TO SEND A SHORT MESSAGE......................................................... 67
13.PROFILE
•TO APPLY A PROFILE ....................................................................... 69
•TO RELEASE THE CURRENT PROFILE........................................... 70
14.MENU LIST
•MENU LIST ......................................................................................... 73
•CHARACTER CODE LIST .................................................................. 86
15.TROUBLE SHOOTING
•MESSAGE MEANINGS AND SUGGESTIONS................................... 87
•TROUBLES AND SUGGESTIONS ..................................................... 88
16.TECHNICAL SPECIFICATIONS
•TECHNICAL SPECIFICATIONS ......................................................... 89

1
1.
1.INTRODUCTION
• WAT IS MH250?
MH250 is a wireless VoIP handset that complies with
IEEE 802.11b specifications. MH250 has the following
features:
- PCS/PHS equivalent features are available by con-
necting with UNIVERGE SV7000, NEAX2400IPX,
NEAX2000 IPS, and WLAN system.
- MH250 dedicated features are also available such as
Short Message, Presence, Phone Book, Call Log,
Speed Dial, and Courtesy Mode.
MH250

2
1.
• KEYS AND PARTS
The phone has the following keys and parts.
12
CLEAR
HOLD
TRF
3
456
789
*0#
@ABC DEF
POWER
GHI JKL MNO
PQRS TUV WXYZ
(1) Antenna
(2) Ear Speaker
(3) Display
(8) 4-way Scroll UP key
(6) OK key
(7) Soft Button 2
(11) 4-way Scroll RIGHT ke
y
(13) HOLD key
(9) 4-way Scroll DOWN key
(16) END/PWR key
(15) CLEAR key
(18) USB Connector
(17) Dial pad
(21) Microphone
(22) AC Adapter Connector
(19) Headset Connector
(20) Info LED
(4) Soft Keys
(5) Soft Button 1
(23) Speaker
[backside of the unit]
(10) 4-way Scroll
LEFT key
(12) TRANSFER key
(14) SEND key
PM 01:34
OK Back
Menu
01. Call Log
02. Phone Book
03. Speed Dial
04. Setting
05. Device Info
06. Lock/Unlock
07. Presence
08. Short Message
09. Maintenance
No. PARTS REMARKS
(1) Antenna -
(2) Ear Speaker -
(3) Display 65,536 color, TFT 2.0 inch LCD, 176 × 220
pixels (9 lines ×21 characters)
(4) Soft Keys Displayed soft keys depend on the phone
status.
(5) Soft Button 1 Used for selecting Left soft key.
(6) OK key Used for selecting Middle soft key.
(7) Soft Button 2 Used for selecting Right soft key.
(8) 4-way Scroll UP-key Used for selecting a value from the list and
moving the cursor in edit mode.d
(9) 4-way Scroll DOWN-key
(10) 4-way Scroll LEFT-key
(11) 4-way Scroll RIGHT-key
(12) TRANSFER key Used for transferring the ongoing call.
(13) HOLD key Used for placing the ongoing call in hold.
(14) SEND key Used for making/answering a call.
(15) CLEAR key Allows you:
To return to the previous screen
To delete input character/digit
(16) END/PWR key Allows you:
To end an active call
To turn on/off the phone
To exit a menu without making changes
(17) Dial Pad Used for dialling number or entering char-
acters.
(18) USB Connector Used for charging the phone via USB.
(19) Headset Connector Used for connecting headset. (∅2.5)
(20) Info LED Flashes when receiving a call.
(21) Microphone -
(22) AC Adapter Connector -
(23) Speaker Rings when receiving a call.