Renew magicJack Subscription devices are used to, make international calls. Using the Voice Over the Internet (VOI) technology. Thousands of people use, this device to cut down their phone bill. magicJack is a small device. Which can be directly connected to, your computer and then calls can be made throughout. The world specifically to, USA and Canada.The popularity of the device, when It ventured Into the market was as such that, it was voted as the ‘Product Of the Year’. Although, these devices have for sure, brought down your phone bills. It does have its fair share of, malfunctions and issues.