NetoDragon softmodems "56k voice modem" seems to be taking over the market from Motorola's SM56. Here is the installation guide:
cp /path/to/driver/tarball /wherever/you/want cd /wherever/you/wanted tar -zxvf slmodem-2.9.X.tar.gz cd slmodem-2.9.X make su make install modprobe slamr slmodemd -c=YOUR COUNTRY'S NAME &
For the 2.6 kernels you must have the kernel source installed in /usr/src/linux If you are using mandrake do as root:
urpmi kernel-source
And Happy surfing