GSM 03.19 v8.0.0 Annex A: Java Card SIM API

Packages
sim.access This package provides the means to the applets for accessing to the GSM data and file system of the GSM application defined in the GSM 11.11 specification.
sim.toolkit This package provides the means for the toolkit applets to register to the events of the toolkit framework, to handle TLV information and to send proactive command according to the GSM 11.14 specification.