Download and install CXT Conexant 56K PCI Soft Modem - driver id 1556352
Amazon.com: Fax Modem, Dual Port USB2.0 56K External Modem Driver, Plug and Play USB Modem, Standard and Expanded at Command Set Compatibility : Electronics
Conexant HCF 56K Modem Driver : BVRP Software : Free Download, Borrow, and Streaming : Internet Archive