Your business telephone system is a mission critical tool, so it’s imperative to pick the best system for your business, not only for today, but for the next few years.

Are you shopping for a phone system for your business? Here’s a listing and review of the leading phone systems on the market for small-sized, medium-sized, large-sized, and enterprise-level businesses, both on premises and hosted solutions. The top five providers for each category are detailed in this guide. Get all the details about 8x8, Vocalocity, Fonality, and many more.