Int 2F Fn 8000  - Faxbios Interface - Installation Check                   [F]

   AX = 8000h
   DX = 0000h
   DI = 0000h

Return: AL = FFh if installed
   DX:DI -> signature "FaxBiosjpc"
Range: AH=80h to AH=FFh, selected by scanning multiplex numbers for signature

See Also: AH=2Ah,AX=80FBh