Hmm. I should mention that I dual boot with Windows sometimes, and in fact it's currently completely broken in there - Fn+F5 doesn't even show it (it shows the other two functions) and my Vodafone program can't turn it on. I tried leaving it on in Linux and then booting into Windows, to no avail.
After our post about TetherBerry, a good friend and BlackBerryCool reader Horia sent us a letter saying the process could easily be done for free via Bluetooth.
Note: While I describe this method using a Treo 650 as an example, this method will work with any bluetooth-enabled GPRS or UMTS telephone: Just enable Bluetooth on your phone (with Bluetooth visibility "on"), and follow this guide ignoring all the Treo-s
Vgetty turns your voice modem into an answering machine. It adds voice capabilities to mgetty. This means, that you can handle data, fax and voice calls on one telephone line.