I was just trying to remember the last time I made a collect call (also known as "reverse charges" in some places). It was probably the mid 1980's. I think it is a calling method that is now completely obsolete.
It was an expensive way to call. The only thing more expensive was person-to-person collect.
Even more expensive, probably the most expensive thing known to man, was a collect call from Mexico to the United States. They were: $10 surcharge just for thinking about it, plus a collect call charge with 3-minute minimum, plus the highest per-minute international rate on the face of the earth. Mortgage the farm, there's a collect call coming in from Mexico! For the price of a few collect calls, you could just go there.
I had a friend in Mexico who called me collect one time and somehow talked the operator into not saying that the call was from Mexico. Ouch! I was hoping he was calling from San Diego, but no, it was Guadalajara. There was no long-distance hiss on the line either, so he totally got one over on me.
Remember when long-distance calls had a lot of noise and hiss? It has been awhile.
I had a roommate in college who was from Zimbabwe. When he called home, he had to yell into the phone due to the noise on the line. After five minutes, the call would disconnect anyway. He'd always blame it on South Africa. I now don't remember why.