Selfi Dialer Prime is a app with which you can get best voice in market
Selfi Dialer is a mobile app for Android. The Selfi Dialer helps users make international calls easier from an Android phone. The application is free to download.
After downloading and installing the Selfi Dialer, open the application and follow the simple wizard to set-up the pilotvoice Dialer:
VoIP Calls via Wifi, 3G / 4G, edge or UMTS.