Vopium for mobile application Android has been updated and now offers free international calls via Wi-Fi and 3G. Like any other VoIP application based on the offers come with income Vopium
You can call other Vopium users, users of Skype and Gtalk for free when you are both online. You can also call other phones for very low prices, even if you have not installed Vopium.
Users can do 15 minutes of free calls worldwide via Wi-Fi or 3G network. Beyond that will be charged at very competitive prices Vopium application for Android is now available on Android Market and is probably the cheapest way to make international calls, but then is required to be connected to the Internet when they call All calls are made through Vopium servers.
