Binary package “efax-gtk” in ubuntu xenial

front end in GTK+ for the efax program

 efax-gtk is a GTK+ front end for the efax program. It can
 be used to send and receive faxes with a fax modem, and to
 view, print and manage faxes received.
 It also has a socket interface to provide a "virtual
 printer" for sending faxes from word processors and
 similar programs, and can automatically e-mail a received
 fax to a designated user, and automatically print a
 received fax.