Not all phones with SIM cards work the same, however. SIM cards are removable and have anywhere from 32 KB to 128 KB. Without a SIM card, some phones would not be able to make calls, connect to internet services such as 4G LTE and 5G or send SMS messages. SIM cards allow a mobile user to use this data and the features that come with them. Gillis, Technical Writer and EditorĪ SIM card, also known as a subscriber identity module, is a smart card that stores identification information that pinpoints a smartphone to a specific mobile network.ĭata that SIM cards contain include user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages.
0 kommentar(er)
