  The X-ray transient eclipsing source MXB 1659-298 went in outburst in 1999
and 2015, respectively, during which it was observed by XMM-Newton, NuSTAR and
Swift. Using these observations we studied the broadband spectrum of the source
to constrain the continuum components and to verify the presence of a
reflection component. We analysed the soft and hard state of the source,
finding that the soft state can be modelled with a thermal component associated
with the inner accretion disc plus a Comptonised component. A smeared
reflection component and the presence of an ionised absorber are also requested
in the best-fit model. On the other hand, the direct continuum emission in the
hard state can be described by a Comptonised component with a temperature
larger than 150 keV. Also in this case a reflection component and a ionised
absorber are observed.
