Having worked and lived in Haiti for seven years, I personally witnessed one of these phone operations. It wasn't the same type of scam as we are talking about here, but, it was still a scam. It was phone sex and the minute you pick up your phone and call that number, and they answer, you get a $35 charge and then $4.95 a min. The operators doing this got a percentage of the charges, so they would keep you on the line as long as possible. This is probably one of the cheaper operatons going.
Haiti's phone company and I think Dominican Republic's phone service are government owned, and they make a lot of money off these type of calls. In Haiti, the phone company licenses long distance service to one of the major phone companies, that we all know and love. It costs $1.65 a min to call to/from Haiti and the US. Who do you think gets the major portion of that? The local phone company. The phone company in Haiti is the only government owned entity that makes money, they aren't inclined to stop this stuff. Oh, forgot to say, this phone sex operation was located in the "major phone company" headquarters building. Think they didn't know about it? HeHe.
The bottom line to my long story is, don't call that number. If you feel you must, go to a pay phone, at least you'll only be out a normal phone charge, or they won't put it through.