VoX Communications http://www.voxcorp.net. VoX has launched a new prepaid calling app that allows you to call any phone in the world, including mobile phones, for very low rates, with purchases as low as $1. The VoX app gives you a second phone number and voice mail with its low calling rates, and does not use your cell-phone plan minutes, because it runs over the data network, either 3G, 4G or WiFi.
