I need a mobile app(s) for a2billing-based biz for both iOS, Android , Windows mobile & Blackberry platforms. The app should allow calling through local numbers as well as WiFi and 3G/4G. App's design needs to be already tested and with awesome features. Let me know if you have any already made solution for my request.
My email address is [url removed, login to view]@[url removed, login to view]