Zong Call is very low cost mobile dialer
Zong Call is a mobile application for Android offering VoIP Calls from internet enabled android phones to any international phone number.
Features:
*VoIP Calls via Wi-Fi, 2G / 3G / 4G.
*Works in all Countries and all Networks across firewalls.
*Smooth voice quality
*Uses very less bandwidth.
*Simple UI
*DTMF