A small business that wants to use Business VOIP without paying thousands to build out its network can consider using a hosted VOIP service. With a hosted VOIP service, all you need is an Internet connection. You pay a monthly fee to a provider and all of your Business VOIP calls run over the Internet through the provider's network. Of course, like most hosted services, your Business VOIP technology, infrastructure and security are in the hands of your provider. This can be good or bad, depending on your own needs and the Business VOIP provider's ability to give solid service.