Bolt releases their free calling VoIP app for android powered mobiles. Whenever it comes to VoIP calling apps,we just keep an extra app to do the process ie one for making VoIP calls and another for making calls to the one’s who are not in our VoIP lists and if you want to make regular calls with your current VoIP app you will have to buy credits which is really a headache. Features of Bolt ( for Android ) free voice calling app The new app from bolt solves this issue, by the simply integrating with your normal dailer of