ESI Communications Servers™ are a reliable solution in a variety of compact models. Easy to use, the ESI Communications Servers™ support and enhance on-premises solutions. These servers can support traditional business phone systems as well as standards-based IP telepathy systems. ESI strives to provide solutions and devices that heighten performance and maximize performance for businesses of all sizes.
Supporting your team's productivity also includes supplying tools and systems that can positively impact their daily operations. Unique calling features, advanced messaging, and customizable auto-attendant tools help your team to focus on getting more business done.
The ESI-50 supports up to 52 total phones spanning across IP, Digital, and Analog phones. Businesses can connect 35 central office (CO) lines and up to 30 hours of voice storage. ESI Advanced Applications are optional additions that can be added to enhance server performance.
The ESI-100 supports IP, Digital, and Analog phones with up to 84 phones total. With 42 central office (CO) lines, up to 140 hours of voice storage, and 1,121 station mailboxes, the ESI-100 is a great server to support On-Premises communication systems.
Expand your communication capabilities with the ESI 200 Series. Supporting almost 200 phones including digital, IP, and analog, the ESI 200 Series is a great option for medium to large businesses. The ESI 200 Series includes increased central office lines, voicemail ports, voice storage, conference ports, and more.
Maximize your communication server experience with the ESI 1000 Series. With this premium system, larger companies can take advantage of 734 total phones on a single server, in addition to over a thousand call processing ports, 115 voice mail ports, up to 1,015 hours of voice storage, almost 60 conference ports, and even more expanded features.