How does a SIM card store data such as voicemails, contacts, etc.? How much data can a SIM card hold? If, then, it connects to the internet, how so?
In: Technology
SIM cards don’t hold voice mail.
They have a small amount of memory for holding contacts and little else. Voice mail is held at your provider. The amount of memory is small, something like 64K, depending on how new it is. Most data is held either at some server, or on your phone’s local storage.
It doesn’t connect to internet, rather it’s your “password” to connect to the internet. It tells the mobile network who you are, and gives it a way to bill you for your usage.
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