ESI eSIP Evolution Series™ On-Premise Solution

The all-new ESI eSIP Evolution Series™ delivers power, performance, flexibility, and scalability for small to mid-sized enterprises up to 500 users. With a modular design that uses the very latest advanced standards-based technology, the eSIP Evolution Series is engineered for the communications needs of today, while “future-proofing” your investment with the ability to grow along with your organization in the future.