For decades, most corporate phone systems were powered by on-premise PBX hardware.
Though legacy PBX systems once provided key advantages, those benefits are now outweighed by major drawbacks—most notably cost and severely limited functionality. Traditional PBX hardware is inflexible and lacks the scalability to adapt to the ebb and flow of business. It hinders true mobile device integration and seamless connectivity of remote workers and multiple locations. Plus, onsite hardware requires a significant upfront investment and is expensive to maintain. Simply put, on-premise PBX systems are cost-prohibitive and impede even the most basic forms of modern communication.