We are developing an crypto-application over CSD for N900.
We intend to create a connection with the serial modem thanks to ofono's API.

I would like to know if it's possible to use Ofono's Api to send modem AT CSD commands.

I have tried to use pnatd, but it works only with normal gsm call and not with CSD.
It's possible to have more documentation about it?

Ofono support Circuit Switched Data?
Can I use in ofono AT+CBST or ATDtel.number?

Thanks.
Giuseppe Leggero
Politecnico di Torino