I am seeking a developer to create a VoIP calling app for iOS & Android systems. . the advertisement will need to be clickable through Google’s Admob. I will also need a version of the app with out the ads. These calling features should be implemented with the Rebtel SDK VoIP calling: http://developer.rebtel.com.
The main idea is to create an app that will be similar to noknok, https://www.noknokapp.com/
First we need to make the app and then we need someone that will be able to routine the call from gsm to voip.
setup mobile provider company to link to VoIP services.