I've spent several hundred testing different campaigns through Adfonic. I've ran general campaigns, optimized campaigns and any other campaign in between and none of them converted. I've tried driving traffic to several mobile optimized sites and none converted. I've tried using click to call option and they registered 1000s of calls and we've received 0 phone calls - none of them were actual calls. It is very hard to make mobile campaigns work, however it is much easier to make them work through other mobile advertising providers. Bottom line is - STAY AWAY FROM ADFONIC!