Can setup free android dial up setup?

Question

Recently I tried vpn app that really dialed free internet for small time. But next day service providet disconnected it quikly when I try to connect. I will say the app name which is not in the google paly. Please reply me the if u know any thing.

Answer 1

Smartphones have two computers in one. The computer that runs andriod / applications and a completely separate computer that runs baseband interface to the cellular network. Baseband processor provides a serial/AT command interface to the smartphone and you can often access it by configuring USB cable as a serial modem. If/how this can easily be done varies by manufacturer usually by entering a magic dial code. Once it is switched a serial/modem device should appear on the USB port. –