Rephone can be able to access the internet over GPRS, you can transfer the data on internet by USB.You can reference to the example : …\Arduino_IDE_for_RePhone\hardware\arduino\mtk\libraries\Network_https\examples\https_test
The driver is in the git/Arduino_IDE_for_RePhone/drivers/mtk/ It’s not a FTDI driver.
This driver just support Windows now.