Editing I-mode (section)

==Description==
<!-- The articles C-HTML, Compact HTML, and CHTML all redirect to this section. Should the section's title change, fix now mistargeted wikilinks, or use the {{subst:Anchor|}} template to create an anchor to keep the stability of external incoming links too. -->
[[File:Mobile Web Standards Evolution Vector.svg|thumb|upright=1.7 |right|Evolution of mobile web standards]]
In contrast with the [[Wireless Application Protocol]] (WAP) standard, which used [[Wireless Markup Language]] (WML) on top of a protocol stack for wireless handheld devices, i-mode borrows from DoCoMo proprietary protocols ALP ([[Hypertext Transfer Protocol|HTTP]]) and TLP ([[Transmission Control Protocol|TCP]], [[User Datagram Protocol|UDP]]), as well as fixed Internet data formats such as C-HTML, a subset of the [[HTML]] language designed by DoCoMo.<ref>{{cite magazine |last=Williams|first=Martyn|date=August 28, 2000|title=NTT DoCoMo i-Mode passes 10 million subscriber mark|magazine=InfoWorld|publisher= IDG|issn=0199-6649|volume=22|number=35|page=49B|url=https://books.google.com/books?id=az0EAAAAMBAJ&q=NTT+DoCoMo+i-Mode+passes+10+million+subscriber+mark&pg=PA48-IA3}}</ref> 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.<ref name="requirements">{{citation |url=http://www.w3.org/TR/1998/NOTE-compactHTML-19980209/#www2-1|title=2.1. Scope of the Products |first=Tomihisa |last=Kamada |date=9 Feb 1998 |publisher=[[W3C]] |access-date=2009-04-24}}</ref> 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.<ref>{{citation |url=http://www.w3.org/TR/1998/NOTE-compactHTML-19980209/#www3-1 |title=3.1 Design Principles |last=Kamada |first=Tomihisa |date=9 Feb 1998|publisher=[[W3C]] |access-date=2009-04-24}}</ref>

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 [[barcode]]).

An i-mode user pays for both sent and received data. There are services to avoid [[E-mail spam|unsolicited e-mails]]. The basic monthly charge is typically on the order of [[Japanese yen|JPY]]¥200{{En dash}}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 per month).