Phase equilibria in the InTe–aIn₂Te₄ system were investigated using DTA, X-ray phase, as well measurement of mic­rohardness and microstructural analyses and its T–x diagram state has been plotted. It has been established that the out is a quasibinary section of the ternary system Ca–In–Te. It has been established that the state diagram of the system is of eutectic type, coordinates of the eutectic point are 45 mol. % CaIn₂Te₄ and  440⁰C. At room temperature the solubility of InTe based solutions reaches 5 mol.%, while that  of CaIn₂Te₄ based solutions is extended to 10 mol % InTe