What is the Difference Between GSM and CDMA?

www.wisegeek.com

...within close range of a cell to get the best speeds, while performance decreases with distance. Subscriber Identity Module (SIM) cards: In the United States only GSM phones use SIM cards. The removable SIM card allows phones to be instantly...

http://www.wisegeek.com/what-is-the-difference-between-gsm-and-cdma.htm

Nokia - WaveSecure Anti-theft Software

...lost S60 device, making it quite noticeable to anyone within earshot. WaveSecure also tracks all new subscriber identity module (SIM) cards that are inserted into the lost phone, and it sends an SMS Alert to a chosen buddy system. WaveSecure...

http://www.nokia.com/A41321061

DOCOMO

it.zibb.com

...Hands-Free Sets and Telephone Holders, Cellular Telephones, Mobile Telephones Magnetically Encoded Subscriber Identity Module (Sim) Cards Contactless Card Systems, Comprising a Credit Card Sized-Card Featuring an Integrated Circuit Chip...

http://it.zibb.com/trademark/docomo/30941589

allAfrica.com: Kenya: Govt to Register Cellphone Users to Curb Crime

allafrica.com

...with an owner and his particulars must be held by mobile phone service providers. Phone ownership Subscriber Identity Module (SIM) cards are only enabled by the firms when details of the buyer are held. But the government has equally been...

http://allafrica.com/stories/200907210934.html