I have a product that generates leads in which users will call a phone number. But I'm not sure where to have them call. Are there call centers that offer this service? Can I direct my callers to a call center and they handle upselling related products and pay me a percentage. I have looked into pay per call and couldn't find an offer in the make money online niche. Anybody have an idea where I can direct my callers or have experience working with call centers. Or know any paypercall offers in the MMO niche.