Int 2F Fn DB13  - Zyxel Zfax V3+ - Convert Fax                             [F]

   AX = DB13h
   DS:SI -> source filename, including path (max 128 characters)
   DS:BX -> destination filename, including path (max 80 characters)
   CX = destination file format
       00h FAX, 01h PCX, 02h TIFF, 03h PRN

Return: AX = status (see #2768)

See Also: AX=DB11h,AX=DB12h,AX=DB14h,AX=DB22h