Binary package “sfftobmp” in ubuntu jammy

SFF (Structured Fax File) Converter

 Tool to convert "Structured Fax Files" into Windows bitmaps
 (BMP), Portable Bitmaps (PBM), JPEG Pictures (JPG) and
 single or multi-page TIFF Images.
 .
 SFF means 'Structured Fax File', intended by the CAPI interface
 to be used to save incoming faxes. Within GNU/Linux, cards such
 as the AVM-B1 create such files.