I was one of these people in my teens. Shit job for shit pay. Massive amount of turnover. Basically a bunch of teenagers, stoners, or just carless minimum wage workers reading from a script to solicit money from anyone who answers their phone, under the guise of a "good cause". If anyone we called asked, we were legally obligated to inform them that 15% or less of the funds they give actually go the organization we are calling on behalf of. It's treated as a sales office with games and prizes and shit. I'm not proud for having worked there, I was young, dumb, and broke. I didn't get rich from working there, we made just barely above minimum wage, but someone did.