Monday, 24 October 2011


The first SIM card was made in 1991 by Munich smart card maker Giesecke & Devrient, who sold the first 300 SIM cards to Finnish wireless network operator Radiolinja.
 The specification that standardized the micro-SIM form factor continues to evolve. Some features introduced recently include:
§  A micro-SIM form factor
§  Allowance for multiple simultaneous applications accessing the card through logical channels
§  Mutual authentication as a way to eliminate carrier spoofing by allowing the SIM card to authenticate the cell tower to which it is connecting
§  PIN protection with hierarchical PIN management with a universal PIN, an application PIN and a local PIN.

§     Expanded phone book storage on the SIM card with entries for email, second name, and groups.

No comments:

Post a Comment

Visitor Map

Popular Posts