Some D620 laptops come with a Connexant HDA D110 MDC V.92 winmodem, plugged on the High Definition Audio (HDA) bus.
snd-hda-intel : Intel Corporation|I/O Controller Hub High Definition Audio (vendor:8086 device:27d8 subv:1028 subd:01c2)
It seems Linuxant has released hsfmodem drivers with HDA bus support, but I didn't get a chance to try it. Anyway, it requires a recent alsa release, that wasn't available in Mandriva 2006.0.
/proc/asound/card0/codec#1 and /proc/asound/pcm (grep for m/modem/i ) could be used by drakconnect to detect such cards.
References: