Recently GFI MailEssentials users may have experienced disruption to their service. We are happy to report that this is now resolved. If you have temporarily disabled Bitdefender, please re-enable it and your email service will resume. If you continue to experience any problems, follow this guide to manually update Bitdefender definitions.

Which AVM cards does GFI FaxMaker support?

BRI cards: (2-channels)

  • AVM B1 v3 (Sends on 2 channels simultaneously, but receives on one channel only. Therefore, no other send/receive may take place while receiving)
  • AVM B1 v4

BRI cards: (Multiple BRI interfaces on one card)

  • AVM C4 (4 x BRI = 8 channels)
  • AVM C2 (2 x BRI = 4 channels)


  • The above devices are supported on the latest GFI FaxMaker version. Older versions may not support all the above cards.
  • GFI FaxMaker was only tested with each card separately. If you want to use multiple cards/devices, you will need to check with the manufacturer of the respective cards to ensure that there are no incompatibilities between the different cards you are going to use.
  • You can find the technical specifications for the AVM cards at the AVM site