The NetNetTalk is a free VoIP Apps support IDD calls and lets you call your friends and family all over the world at super low rates!
Advantage:
-Save Mobile Local Airtime Charges when making IDD Call.
-It work good in both WiFi or 3G internet.
-Enjoy same supper low calling rate anywhere in the world.
Features:
-Uses internal contact list
-Registered Status
-Account Status
-Network Quality Indication
-Speakerphone, mute and hold functions
-Call history with a list of received, missed and dialed calls
-Call recording
-SMS sending