Model: RCVDL56ACF/SVD R6761-27
Operating System: All Windows Versions (Note: might work with other versions of this os.)
UK Driver (Maybe International?)
Appears in Device Manager as "56K Plug&Play Modem"
Works fine for me under Windows 98SE, other drivers available.
Can also be identified by ATI3 (mine is 2010-K56_DLP) Check this in Control Panel, Modems, Diagnostics, More Info.