[en] In this work, we revisit the experimental data for elastic, inelastic and α-transfer in the ${}^{12}$C + ${}^{16}$O system at 80 and 84 MeV using the coupled reaction channel method to analyze the angular distributions. The spectroscopic amplitudes relevant for the α-transfer channel have been calculated from the semi-microscopic algebraic cluster model. The imaginary term of the optical potential was fitted to the experimental elastic scattering data at forward angles. Our calculations describe reasonable well the absolute cross sections for the inelastic scattering and α-transfer. We discuss the effect of couplings on the transfer channel.