"Dial up networking" config

For our ongoing experiment, we are hoping to tether some laptops onto the EDGE connection, either through a USB style dongle or a USB cord into a phone that allows it to be treated like a modem (And for some old school phones, maybe even a Serial port connection). These situations require a number to be dialed, what I believe is a USSD code, and sometimes a username and password to be entered. I am not talking about newer smart phones where the connection is sometimes shared using advanced drivers. Has anyone been able to do this with OpenBSC? Chris Rankine