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Wikipedia / W-SIM

W-SIM (Willcom-SIM) is a SIM card developed by Willcom which, in addition to standard SIM functions, also has the core components of a cellular telephone (PHS), such as the radio receiver/transmitter, built inside. It is currently used in some terminals (listed below), which do not have radio modules.

The W-SIM core module is an extended version of a SIM card, containing not only user data but also all the transmission technology needed for a mobile device to work.

A terminal device developer can build a customized terminal without the design and development of a radio module, and users can change to a different radio module W-SIM without changing the terminal itself.

Similar to traditional handsets made by WILLCOM, W-SIM terminals can be used in Japan, including global roaming with Taiwan and Thailand. For Mainland China, China Netcom had W-SIMs available, though its PHS network is due to be phased out this year. In addition, a GSM version called the CM-G100 had been developed for use in other countries.

WILLCOM branded terminals

  • WS001IN / "TT"

    1. Hand-set terminal by Net Index.

    WS002IN / "DD"

    1. Data communication terminal by Net Index.

    WS003SH / W-ZERO3

    1. Hand-set terminal(smartphone) by Sharp.

    WS004SH / W-ZERO3

    1. Hand-set terminal(smartphone) by Sharp. Higher-spec version of WS003SH.

    WS005IN / nico.

    1. Hand-set terminal by Net Index.

    WS007SH /

    1. Hand-set terminal(smartphone) by Sharp. Stylish and slender version of W-ZERO3.

    WS008HA / WS008HA

    1. ExpressCard data communication terminal by Hagiwara Sys-Com.

    WS009KE / 9(nine)

    1. Hand-set terminal by KES.

Terminals branded by other than WILLCOM

  • Kids Ke-tai !

    1. Hand-set terminal by Bandai. The internal code is WS006.

References