Misscall

Misscall is a mobile app for Android and other smartphones, offering functionalities like VoIP Calls and much more from data enabled mobile phones (3G/4G or WiFi).

Features:
Integration with mobile phonebook
Balance information: You can check their account balance on the mobile phone screen or alternatively, they can hear account balance information through IVR (Interactive Voice Response).
Misscall supports 3G/4G, GPRS and Wi-Fi for internet connectivity.