VeeVou softphone is a SIP-based dialer designed to make low cost long distance and international phone calls via VeeVou’s own VoIP network. Users are required to register an account to use the softphone. VeeVou softphone works on any Android device, phone or tablet, and allows you to make calls using the device’s data (WiFi or mobile data) connection. If you have an Android device with Wi-Fi connectivity but no mobile plan, or have data SIM only, you can use this app to convert it to full-featured working phone. Don’t forget to tell your friends about this so you can call each other for free.
VeeVou softphone support link http://voip.veevou.com
Using this app as a default dialer may interfere with dialing 911 emergency services.