  The unparalleled photometric data obtained by NASA's Kepler Space Telescope
has led to improved understanding of red-giant stars and binary stars. We
discuss the characterization of known eccentric system, containing a solar-like
oscillating red-giant primary component. We also report several new binary
systems that are candidates for hosting an oscillating companion. A powerful
approach to study binary stars is to combine asteroseimic techniques with light
curve fitting. Seismology allows us to deduce the properties of red giants. In
addition, by modeling the ellipsoidal modulations we can constrain the
parameters of the binary system. An valuable independent source are
ground-bases, high-resolution spectrographs.
