This document discusses how Esnatech provides unified communication solutions to help "Hybrid" enterprises that have both on-premise and cloud-based systems. It outlines challenges large organizations face with managing multiple legacy voice systems and applications across different locations. Esnatech helps by providing a centralized voice messaging system, unified messaging, mobility features, and the ability to integrate these core voice applications with a company's private cloud infrastructure and other cloud investments. This simplifies management, provides consistent functionality, and helps eliminate costs while improving collaboration for organizations with complex, multi-generational IT environments.