Two friends on the phone had me talking with an angry "Benson Boone" — how the heck did they do that, was it some app?

Super quick question, my friends were telling me Benson was on the line (I don't even know who that is) and I immediately thought it was some AI joke, so I refused to talk. Benson got angry, knew my name, knew that I refused to talk to him, it was f***ing surreal.

They refuse to tell me how they did it. It might've been a voice changer app or what I thought was maybe AI.

Anyone know? It was creepy and I can not figure it out researching it online. kthx! :D