Riser Modem on GIGABYTE GA7-ZX series motherboard. HAMR 5600 Modem but Smart Link Voice Modem. V 2.84.01.
Best WIN 2K driver I've found so far. Modem connects at 40K+ but throughput seems lousy so far. I'm still trying to tweak it.
Do an "AT+MS=?" since it doesn't follow the usual +MS format if you try tweaking it.
At one point I had to uninstall, shut down and REMOVE the modem and then power up and back down and reinstall before it would start working right.