How to build a GSM SIM card?

Hi Everybody

I want to build a SIM card ... can any one hep me ?

GSM SIM Card

A subscriber identity module is a smart card which securely stores the key identifying a mobile phone service subscriber, as well as subscription information, preferences and text messages. The equivalent of a SIM in UMTS is a Universal Subscriber Identity Module (USIM).

The SIM stores network state information such as its current location area identity (LAI). If the handset is turned off and back on again it will take data off the SIM and search for the LAI it was in. This saves time by avoiding having to search the whole list of frequencies that the telephone normally would. Each SIM is uniquely identified by its ICCID [International Circuit Card ID].

SIM cards identify users uniquely by holding an IMSI.

Japan's PDC system also specifies a SIM, but this has never been implemented commercially. The specification of the interface between the Mobile Equipment and the SIM is given in the RCR STD-27 annex 4. The Subscriber Identity Module Expert Group was a committee of specialists assembled by the European Telecommunications Standards Institute (ETSI) to draw up the specifications (GSM 11.11) for interfacing between smart cards and mobile telephones. In 1994, the name SIMEG was changed to SMG9.

In July 2005, the Finnish government announced that a Citizen Certificate - a government-guaranteed 'electronic identity' included in a SIM card - will be made available to every individual resident in Finland before the end of 2005, allowing mobile phone users to access e-services on the move. The Citizen Certificate has been described as "basically an e-ID card that will be compatible with several hardware devices, such as mobile phones, PDAs, personal computers, Digital TV sets, and public web kiosks". [1] The first SIM cards with embedded Citizen Certificates have already been made available in selected localities.

The use of SIM card is mandatory in the GSM world, whereas the SIM (RUIM) is not very popular in the CDMA world.

The major SIM card vendors in the market are Axalto, Gemplus, G&D and Oberthur Card Systems.

W-SIM is a SIM card which also integrates core cellular technology into the card itself.

Re: GSM SIM Card

If you are interested I can upload the GSM 11.11,GSM 11.14 , it is GSM standard for SIM card.

Re: GSM SIM Card

thanks
please upload them