You have a 3G mobile phone or portable device and you have a 3G mobile broadband connection, which you use to check your email, surf the web, download music and other media etc. You can use your 3G mobile phone to make free or very cheap phone calls using VoIP (Voice over IP) applications and services, and to any destination worldwide.
Mobile VoIP is becoming more and more common with the expansion of wireless media and many people are already using VoIP to make free calls or cheap ones to their local or international contacts. You only need to use your 3G mobile device and 3G connection and register for free with one of the numerous VoIP services for mobile phones available on the market, after having downloaded and installed their applications on your 3G mobile device. Some even allow you to make the calls without having to install anything, through their web interface.
Here are lists of VoIP services on the market for mobile devices:
For iPhone users
For BlackBerry phone users
For Android phone users
Since 3G mobile calling has some limitations, namely those related to costs, especially for this who intend to get a 3G mobile data plan solely for VoIP calls, you will want to consider ways of making free and cheap phone calls on your mobile device other than 3G. There are other wireless standards like Wi-Fi, WiMAX and LTE.
