What were the results and lessons of the Caribbean crisis in 1962 for the leaders of the USSR?

The Cuban missile crisis truly taught a lesson not only for the Soviet leadership, but for the whole world in general, because its consequences could be very far-reaching. This event gave the notion that no matter how strong the contradictions between the two camps were – you need to conduct a dialogue, somewhere to make concessions and negotiate, and not to transfer everything to the military field and measure weapons. For this, a direct telephone was made between Moscow and Washington so that there was a possibility of emergency communication between the heads of the two states.