im expert on my pc c# to send and recieve messages from my arduino uno with gsm shield using a regular sim attached to my gsm shield.
but if i use a retailer sim attached to my gsm shield it is very hard for me to code on how to detect the automatic apps from the retailer sim
that will pop up the menu to chose like how much do i want to sell a load to another sim. if we use to insert this retailer sim to an ordinary
cell phone like nokia 3315 the sim will automatically provide a menu on the phone screen. anybody out there knew how to twick this app from
a retailer sim pack?
