How OPEN AT can help me?

Hello,

We’ve been using several Wavecom modems for three years now for call & text prepayment. Using SIM Application Toolkit (SAT) this was made possible. Now my question is, can I make an application that can be embedded into the GSM modems (AT commands and SAT as well)? Can this speed up the process now that we’ve been doing?

Thanks and regards.

modulo11