Sale, sale, sale - that's the only option the advertisers on CJ offer, that including Jamster, Playphone and Dadamobile. I used to use FunMobile US which had a pretty low conversion rate but now they've become de-activated and I couldn't find any other pay per lead advertisers with ringtones! Surely there must be some as I'm sure people who advertise ringtones don't make money only from their sales, surely?
No, sale is when the customer has to pay and you get a % and leads is when they get the ringtone for free!
You might be confused, no one gives away a free ringtone besides jamster, and jamster doesnt pay the affiliate when they download the free one, only when they subscribe to the subscription service.
Try to find offers in other networks like azoogle or neverblue. There's a lot of campaigns that pay per lead.