NetModem is compatible with all multi-modem cards that allow Windows to see their COM ports, including both Analog and Digital (ISDN) multi-modem cards. Here are several of the popular brands we have tested:.

The following Multi-Modem cards have been tested with NetModem:

• Comtrol - RocketModem cards (4 or 8 analog modems)
• Digi AccellePort RAS- Multi modem adapters (4 or 8 analog modems)
• Equinox - Mult-Modems (4 or 8 analog modems)
• MultiTech Systems Multi-Modem ISI cards (4 or 8 analog modems)
• Perle - Multi-Modem cards (4 or 8 analog modems)
• Digi/Patton Dialfire 2977 T1/E1 RAS cards (24 to 60 modems, analog+digital)
  
• Eicon - Diva Server series (up to 60 modems, analog+digital)
  
  

The following Multi-Serial port cards have been tested with NetModem:

• Acenna Corporation Flexport serial cards
• Byte Runner Technologies - Mulit port serial cards
• Comtrol - RocketPort serial cards and serial hubs
• Connect Tech Inc. -Multi port serial cards
• Digi AccellPort - Mulit port serial cards (requires firmware after 2001)
• Equinox - Super serial I/O cards
• MultiTech Systems Intelligent Serial Interface cards
• Perle - Mulit port serial cards
• Sealevel Systems - COMM+ multi port serial cards
• Stallion EasyIO - multi port serial cards
  
• WCSC Multi port serial cards
  
  

What not to use:

USB to Serial port adapters based on the Prolithic PL-2303 chipset have known issues with their serial emulation failing when used for modem applications. Therfore these adapters should not be used to attach external modems to NetModem Server.

Brooktrout multi-fax modem cards do not allow Windows to see their COM ports, so these modems can not be shared using NetModem.

Seperate "cheap" controllerless PCI modem cards, known as Software modems or WinModems often will usually not allow multiple cards to co-exist in one PC.