Business phone systems no longer serve as a tool for simply making and receiving calls. Today's unified communications systems allow employees to communicate by phone, video, and text, which is giving businesses the flexibility to connect with customers and clients in any way they prefer. The business phone system market has grown by leaps and bounds in recent years, with dozens of options to choose from, which makes finding the solution that's right for your business a difficult task. To help in the search process, we researched and analyzed more than 75 providers. Our best picks are below, as well as a comprehensive list of phone system and unified communications providers in case our choices don't fit your needs. To learn more, read our guide on choosing a business phone system.