Need Help For Beginner where to start

Hello all. I new to Open AT. My company sell wavecom GSM modem and my division is to make application (using vb 6) that use that modem (so when selling the modem it will also include the application that we build). But recently my boss want to use embedded system using vc ++. Any suggestion or idea where to learn about it.

Note that the purpose of Open-AT is to allow you to put your application inside the modem - open-AT applications do not run on a PC (although, as a debug/development tool, you can run a kind of simulation on a PC).

As a starting point, you should read the open-AT introductory documents, and look at the supplied samples.