Best Android apps for VoIP and SIP calls:Groove IP Lite

Here’s a groovy application that will surely satisfy your calling cravings. Groove IP Lite from Snrb Labs is an Android application that connects to Google Voice using VoIP. Users of Groove IP Lite can make free unlimited calls to any phone in the United States or Canada without costing a cent on voice minutes. Groove IP Lite works on any Android device, allowing you to make calls over a Wi-Fi connection.

Turn any ordinary mobile phone into a fully featured phone without paying any charges to your carrier. For those of you calling with a data network plan, each call uses 1.2 MB of data. If you’d like to do away with ads and to get more features, you can also purchase Groove IP’s pro version.