Model: DPN 00049XJC / MDP 3900 V-U(B)
Operating System: Windows 2000 (Note: might work with other versions of this os.)
FileName: R64766.EXE [850 KB]
Release Date: 8/6/2003
Description: HCF V.90 56K RTAD,Speakerphone PCI Modem Windows XP\2K Driver.
I was given parts from a Dell XPS T600r and installed the Aztech MDP 3900 V-U(B) modem in another computer running Windows XP Professional to replace an aging phoebe micro isa modem.
It installed as a Dell Data Fax Modem and worked for a while but started to have a large number of transmission errors.
I uninstalled it and when I attempted to reinstall it the system could not find the default Dell Data Fax Modem driver it had used previously. The modem was identified simply as a Simple Communications Controller.
After extensive searching I finally found the driver that works.
For the install I extracted the files and manually pointed the hardware installer to the included .inf file.
I am now connected at 48k and have had no transmission errors yet.