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Traveling with N900iG
530
International roaming (WORLD WING) is a service that DoCoMo provides to FOMA users. It
allows communication and i-mode use even overseas via the network of an overseas
provider.
The FOMA N900iG features international roaming using the phone number you use in Japan.
You can make and receive voice/videophone calls abroad, and use i-mode, SMS and packet
communication performed by connecting to a machine such as PC. Convenient network
services including the Voice mail service and the Call forwarding service are also available.
● To use the International roaming service, you need to sign up for WORLD WING.
● To use the International roaming service, the FOMA card (green) which validates the WORLD WING
service needs to be inserted in your FOMA N900iG.
● Network service requires additional subscription.
● The communication services and functions that are available depend on each roaming network. → p.537
● Overseas networks include 3 types of networks: 3G network, GPRS network and GSM network.
・ A 3G network is a 3rd generation mobile communication network that complies with global standard 3GPP ※ 1 .
・ A GPRS network is a 2.5th generation mobile communication network that implements high speed packet
communication by GPRS
※ 2 on a GSM network.
・ A GSM ※ 3 network is a 2nd generation mobile communication network supporting communication in digital form. The
GSM network is the most widely used network type worldwide.
※ 1: 3GPP (3rd Generation Partnership Project)
A regional standardization organization established for the development of standardized technical
specifications for the 3rd generation mobile communication system (IMT-2000).
※ 2: GPRS (General Packet Radio Service)
Packet communication service with maximum communication speed of 115 kbps. Widely used in Europe,
China and other countries.
※ 3: GSM (Global System for Mobile Communications)
A mobile communication standard unified in Europe. This 2nd generation mobile communication system using
a digital method is the most widely used worldwide.
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International roaming functions for FOMA N900iG
International Roaming Service (WORLD WING)
● The communication services that can be used vary depending on each network (p.537). They also depend on
the carrier you are accessing. Please note that some services you want to use may not be available for these
reasons. For details on service areas, refer to “
国際ローミングサービスマニュアル （FOMA N900iG）
” (the
international roaming service manual (FOMA N900iG)) (Japanese only) and the WORLD WING website.
※ : As of December 2004, packet communication performed by connecting to a machine such as PC is not available in overseas areas. For the
latest information, see the DoCoMo web site.
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Carrier A
■
Carrier B
Network on which voice call,
videophone call, i-mode mail,
i-mode, SMS and packet
communication are available Network on which only
voice call and SMS are
available
Videophone call, i-mode mail,
i-mode and packet communi-
cation are NOT available
on this network
Function Details
Voice call
Videophone call
i-mode mail
i-mode
Short Message Service (SMS)
Overseas packet communication
※
● You can use your FOMA terminal overseas with the same phone number you use in Japan.
● You can use the FOMA terminal for international calls to Japan or other countries and calls in the
country where you stay.
●
You can make an international videophone call to users of specific overseas 3G carriers and
FOMA users in Japan.
● You can use the mail address you usually use to send or receive i-mode mails. You can also
exchange i-mode mails to which images and melodies are attached.
● You can also use i-mode overseas.
● You can also exchange SMS overseas.
● You can use packet communication by connecting your terminal to a PC.