I know you need one for it to work, but say you have a phone with a camera and video and you just want them to work, does the sim card make them work but does nothing to the calls and messages if you don't go with any phone plan?
What do sim cards do to mobile phones?
Ok Here it goes ,Sim Stands for Subscriber Identity Module. SIM is part of a removable smart card ICC (Integrated Circuit Card), also known as SIM Cards, for mobile cellular telephony devices such as mobile computers and mobile phones. SIM cards securely store the service-subscriber key (IMSI) used to identify a subscriber. The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device.
SIM cards are available in two standard sizes. The first is the size of a credit card (85.60 mm × 53.98 mm x 0.76 mm). The newer, more popular miniature-version has a width of 25 mm, a height of 15 mm, and a thickness of 0.76 mm. However most SIM cards are supplied as a full-sized card with the smaller card held in place by a few plastic links and can be easily broken off to be used in a phone that uses the smaller SIM.
The first SIM Card was made in 1991, with Munich smart card maker Giesecke %26amp; Devrient selling the first 300 SIM cards to Finnish wireless network operator Elisa Oyj (formerly Radiolinja).
Reply:well yeah.. a sim card with no connection to the network can let you just turn on your phone.. but no calls, texts
Reply:umm i do think they work the video and the camera, but any other phone service (texting, calling, internet) will not work
shared web hosting
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment