User`s guide

Chapter 1 – AT Commands for Remote SIM Application Toolkit
Multi-Tech Systems, Inc. SIM Application Toolkit AT Commands (S000391C) 13
1.1.10.3 Envelope Command Sequence (Menu Selection)
A SIM application will provide SAT with a main menu to display, using the PAC SETUP MENU. The
envelope command MENU SELECTION allows the TA to select an item from this menu using AT^SSTR.
When this takes place, SAT will issue a response to the user, but it will not change the state. The SIM
application is then generally expected to issue a PAC.