NTT DoCoMo's i-mode is a

mobile internet The mobile web refers to mobile browser-based World Wide Web services accessed from handheld mobile devices, such as smartphones or feature phones, through a mobile or other wireless network. History and development Traditionally, the Worl ...

(distinct from

wireless internet Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most ...

) service popular in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. Unlike

Wireless Application Protocol Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. A WAP browser is a web browser for mobile devices such as mobile phones that use the protocol. Introduced in 1999, WAP achieve ...

s, i-mode encompasses a wider variety of internet standards, including web access,

e-mail Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic ( digital) version of, or counterpart to, mail, at a time when "mail" meant ...

, and the

packet-switched network In telecommunications, packet switching is a method of grouping data into '' packets'' that are transmitted over a digital network. Packets are made of a header and a payload. Data in the header is used by networking hardware to direct the pack ...

that delivers the data. i-mode users also have access to other various services such as: sports results,

weather forecast Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time. People have attempted to predict the weather informally for millennia and formally since the 19th cent ...

s, games, financial services, and ticket booking. Content is provided by specialised services, typically from the mobile carrier, which allows them to have tighter control over billing. Like WAP, i-mode delivers only those services that are specifically converted for the service, or are converted through gateways.

Description

In contrast with the

(WAP) standard, which used

Wireless Markup Language Wireless Markup Language (WML), based on XML, is a now-obsolete markup language intended for devices that implement the Wireless Application Protocol (WAP) specification, such as mobile phones. It provides navigational support, data input, hyp ...

(WML) on top of a protocol stack for wireless handheld devices, i-mode borrows from DoCoMo proprietary protocols ALP (

HTTP The Hypertext Transfer Protocol (HTTP) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, ...

) and TLP ( TCP, UDP), as well as fixed Internet data formats such as C-HTML, a subset of the

HTML The HyperText Markup Language or HTML is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScri ...

language designed by DoCoMo. C-HTML was designed for small devices (e.g. cellular phones) with hardware restrictions such as lower memory, low-power CPUs with limited or no storage capabilities, small monochrome display screens, single-character fonts and limited input methods. As a simpler form of HTML, C-HTML does not support tables, image maps, multiple fonts and styling of fonts, background colors and images, frames, or style sheets, and is limited to a monochromatic display. i-mode phones have a special i-mode button for the user to access the start menu. There are more than 12,000 official sites and around 100,000 or more unofficial i-mode sites, which are not linked to DoCoMo's i-mode portal page and DoCoMo's billing services. NTT DoCoMo supervises the content and operations of all official i-mode sites, most of which are commercial. These official sites are accessed through DoCoMo's i-mode menu but in many cases official sites can also be accessed from mobile phones by typing the URL or through the use of

QR code A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about th ...

barcode A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or o ...

). An i-mode user pays for both sent and received data. There are services to avoid unsolicited e-mails. The basic monthly charge is typically on the order of JPY ¥200 - ¥300 for i-mode not including the data transfer charges, with additional charges on a monthly subscription basis for premium services. A variety of discount plans exist, for example family discount and flat packet plans for unlimited transfer of data at a fixed monthly charge (on the order of ¥4,000/month).

History

i-mode was launched in Japan on 22 February 1999. The content planning and service design team was led by Mari Matsunaga, while Takeshi Natsuno was responsible for the business development. Top executive Keiichi Enoki oversaw the technical and overall development. A few months after DoCoMo launched i-mode in February 1999, DoCoMo's competitors launched very similar mobile data services:

KDDI () is a Japanese telecommunications operator formed on October 1, 2000 through the merger of DDI Corp. (Daini-Denden Inc.), KDD (Kokusai Denshin Denwa) Corp. (itself a former listed state-owned enterprise privatized in 1998), and IDO Corp. It ...

launched

EZweb au, or au by KDDI, is a Japanese mobile phone operator. au is a brand marketed by KDDI in the main islands of Japan and by Okinawa Cellular in Okinawa for their mobile cellular services. au is the second-largest wireless carrier in Japan, wit ...

, and

J-Phone is a Japanese multinational conglomerate holding company headquartered in Minato, Tokyo which focuses on investment management. The Group primarily invests in companies operating in technology, energy, and financial sectors. It also runs th ...

launched

J-Sky J-Sky is a Ferris wheel A Ferris wheel (also called a Giant Wheel or an observation wheel) is an amusement ride consisting of a rotating upright wheel with multiple passenger-carrying components (commonly referred to as passenger cars, cab ...

. Vodafone later acquired J-Phone including J-Sky, renaming the service

Vodafone live! Vodafone live! was the brand name for the multimedia portal service of mobile phone operator Vodafone, offering news content, picture messaging, instant messaging, email, and downloadable ringtones and games. The service officially launched on 24 O ...

, although initially this was different from Vodafone live! in Europe and other markets. In addition, Vodafone KK was acquired by

SoftBank is a Japanese multinational conglomerate holding company headquartered in Minato, Tokyo which focuses on investment management. The Group primarily invests in companies operating in technology, energy, and financial sectors. It also runs the ...

, an operator of Yahoo! Japan in October, 2006 and changed the name to

SoftBank Mobile is a Japanese multinational conglomerate holding company headquartered in Minato, Tokyo which focuses on investment management. The Group primarily invests in companies operating in technology, energy, and financial sectors. It also runs the Vi ...

Bandai is a Japanese multinational toy manufacturer and distributor headquartered in Taitō, Tokyo. Its international branches, Bandai Namco Toys & Collectables America and Bandai UK, are respectively headquartered in Irvine, California and Richmond ...

and

Namco was a Japanese multinational corporation, multinational video game and entertainment company, headquartered in Ōta, Tokyo. It held several international branches, including Namco America in Santa Clara, California, Namco Europe in London, Na ...

launched content for i-mode in 1999. Bandai launched the ''Dokodemo Aso Vegas'' service in May 1999, reaching over paid subscribers by March 2000. In December 1999, Namco launched ''Namco Station'', a mobile site for i-mode. Since 2003, i-mode center is called CiRCUS, which consists of 400

NEC is a Japanese multinational information technology and electronics corporation, headquartered in Minato, Tokyo. The company was known as the Nippon Electric Company, Limited, before rebranding in 1983 as NEC. It provides IT and network soluti ...

NX7000

HP-UX HP-UX (from "Hewlett Packard Unix") is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on Unix System V (initially System III) and first released in 1984. Current versions support HPE Integrity Ser ...

servers and occupies 4,600 m² floor space in DoCoMo's Kawasaki office. The operation support system is called CARNiVAL, which is hosted in the

Sanno Park Tower The Sanno Park Tower
"

Renault F1 team The French automotive manufacturer Renault has been associated with Formula One as both team owner and engine manufacturer for various periods since 1977. In 1977, the company entered Formula One as a constructor, introducing the turbo engine ...

from 2004 to 2006. i-mode was launched in the following countries: *

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

(

Telstra Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets voice, mobile, internet access, pay television and other products and services. It is a member of the S&P/ASX 20 ...

) *

Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...

( Base) *

Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedon ...

(

Globul Yettel Bulgaria (formerly known as ''Telenor Bulgaria'') is a mobile network and the third largest fixed telecommunications company in Bulgaria. The company was founded under the name "Cosmo Bulgaria Mobile" in 2001 by OTE and operated under the br ...

) *

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

(

Bouygues Télécom Bouygues Telecom () is a French mobile phone, Internet service provider and IPTV company, part of the Bouygues group. It is the third oldest mobile network operator in France, after Orange S.A., Orange and SFR, and before Free Mobile. Its headqu ...

) *

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

(

E-Plus E-Plus was a mobile telecommunications operator in Germany. With more than 25 million subscribers, E-Plus was the third largest mobile operator in Germany, until the takeover from Telefónica Germany in October, 2014. Ownership E-Plus was ...

) *

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...

(

Cosmote COSMOTE MOBILE TELECOMMUNICATIONS S.A. ( el, COSMOTE ΚΙΝΗΤΕΣ ΤΗΛΕΠΙΚΟΙΝΩΝΙΕΣ Α.Ε.) known as just Cosmote is the largest mobile network operator in Greece. The company is headquartered in Athens and is a fully owned subsidia ...

) *

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

( 3) *

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

( Cellcom) *

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

( O2) *

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

(

Wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few hou ...

) *

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

(

KPN KPN (in full Koninklijke KPN N.V., also Royal KPN N.V.) is a Dutch landline and mobile telecommunications company. KPN originated from a government-run postal, telegraph and telephone service and is based in Rotterdam, Netherlands. History Un ...

) *

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

( MTS) *

Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...

(

Cosmote Romania Telekom Romania Mobile Communications S.A. is a mobile network company in Romania, wholly owned by OTE, which in turn is controlled by Deutsche Telekom, operating under Telekom brand. Telekom Romania Mobile had 3.5 million subscribers with 15% m ...

) *

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...

(

StarHub StarHub Limited, most commonly known as just Starhub, is a Singaporean multinational telecommunications conglomerate and one of the major telcos operating in the country. Founded in 1998, it is listed on the Singapore Exchange (SGX). History ...

) *

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

(

Telefónica Telefónica, S.A. () is a Spanish multinational telecommunications company headquartered in Madrid, Spain. It is one of the largest telephone operators and mobile network providers in the world. It provides fixed and mobile telephony, broadba ...

) *

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

(

FarEasTone Far EasTone Telecommunications (Far EasTone/FET; ) is a telecommunications company based in Taiwan. It is the third largest behind Chunghwa Telecom and Taiwan Mobile. History Far EasTone was founded in October 1996 by the Far Eastern Group, in a ...

) * UK ( O2)

Devices

Some typical features include the " clamshell" model with large displays (240x320 pixels) and in many models, a display on either side. Additionally the phones have many extra features, e.g. a megapixel

digital camera A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film. Digital cameras are now widely incorporated into mobile device ...

. The displays normally have 65,536 colors but the newest models have as many as 262,144 colors. * FOMA SA800i * LG KE390i * LG L343i * LG L852i (PRADA) * Mitsubishi M342i * Motorola RAZR V3xx with i-mode *

Motorola SLVR L7 The Motorola Slvr (styled SLVR) is a series of mobile phones from Motorola, and is one of the series in the 4LTR line. The first phones were released in early 2005. They are designed to be very thin and lightweight. Use by NSA The SLVR is feature ...

i-mode * Motorola SLVR L6 i-mode *NEC N21i * NEC N22i *

NEC N343i The NEC N343i is a GSM 900 – GSM 1800 – GSM 1900 mobile phone which was manufactured by NEC is a Japanese multinational information technology and electronics corporation, headquartered in Minato, Tokyo. The company was known as the ...

* NEC 411i * Nokia N70 i-mode *

Nokia N95 The Nokia N95 is a smartphone produced by Nokia as part of their Nseries line of portable devices. Announced in September 2006, it was released to the market in March 2007. The N95 ran S60 3rd Edition, on Symbian OS v9.2. It has a two-way sli ...

i *

Nokia 6120 classic The Nokia 6120 classic is a mid-range smartphone from Nokia that was announced on 17 April 2007. It runs on Symbian v9.2 with a S60 3rd Edition FP1 user interface. It is the first Nokia UMTS / HSDPA dual band phone which also features quad ban ...

* Nokia 6124 classic * Samsung S400i * Samsung S500i * Samsung Z320i *

Sony Ericsson K550 The Sony Ericsson K550 is a mid range mobile phone. Announced on February 6, 2007, it was the successor of the K510 model sensor with two-LED photolight and an active lens cover for the camera lens protection and easy camera activation when takin ...

im *

Sony Ericsson K610 The Sony Ericsson K610i is a 3G phone that Sony Ericsson announced at the 3GSM World Congress on February 13, 2006. It was promoted as the smallest and lightest 3G phone available. It has been succeeded by the K530. Features The K610 is a su ...

im * Fujitsu F905i (one of the very few Japanese i-mode phones to be sold outside Japan)

References

External links

NTT DoCoMo: i-mode

Evolution Of Mobile Phones For The Past 10 Years
{{Document markup languages Mobile web Typefaces and fonts introduced in 1999 Telecommunications-related introductions in 1999 1999 establishments in Japan NTT Docomo

Description

History

Devices

See also

References

External links