They do have a lot of power over the device. They run the Oracle Java card standard and are a complete computer that can even run a webserver. They can interact with host events like call starting and call ending. Not sure if they can install user apps. But I have had a carrier push a voicemail shortcut into my app draw that would auto call the voicemail number when pressed. I couldn't remove it unless I removed the Sim.
They do have a lot of power over the device. They run the Oracle Java card standard and are a complete computer that can even run a webserver. They can interact with host events like call starting and call ending. Not sure if they can install user apps. But I have had a carrier push a voicemail shortcut into my app draw that would auto call the voicemail number when pressed. I couldn't remove it unless I removed the Sim.
A good read
That's insane, I didn't realize that tiny thing is a computer, let alone one running a tiny J~c~VM! Thank you for the educative link!
Wonder if that would install on a phone running graphene