Fandom

The IT Law Wiki

Subscriber Identity Module

32,181pages on
this wiki
Add New Page
Talk0 Share

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Definition Edit

A Subscriber Identity Module (SIM) is

the smart card inserted into GSM cellular phones. The SIM identifies the user account to the network, handles authentication, and pro­vides data storage for basic user data and network information. It may also contain some applications that run on a compati­ble phone.[1]

Overview Edit

When a subscriber removes the SIM card, it can be re-inserted into another phone that is configured to accept the SIM card and used as normal. Each SIM card is activated by use of a unique numerical identifier; once activated, the identifier is locked down and the card is permanently locked in to the activating network. For this reason, most retailers refuse to accept the return of activated SIM cards. Common providers that require SIM cards include AT&T Mobility, T-Mobile and Nextel.

References Edit

  1. Electronic Crime Scene Investigation: A Guide for First Responders, at 60.

Also on Fandom

Random Wiki