The recording is titled “Interception of Intruders.” The discussion recorded took place between the board 725 (Male voice) and the Checkpoint. 725 is the nickname for the aircraft plane MiG-29 which was doing the interception of the intruder plane.

Translation is at -http://www.paranoiamagazine.com/2018/04/an-outsider-above-the-border-russian-federation-mig-29-chases-ufo-for-18-minutes-with-audio/