ESI's 55 Digital/IP Business Phone offers an impressive combination of power and ease-of-use.
- Digital; Ethernet IP 10/100 Network
- 30 (up to 150) Programmable Keys
- Dedicated Voicemail Key
- Dedicated Help Key
- 3-line, 56-character Adjustable Backlit Display
- Full Duplex Speakerphone
- Integrated Headphone Jack
ESI IP Server 900
ESI IP Server 900 is a unified communications system combining the reliability of an on-premises phone system with the flexibility of network connectivity.
ESI Communications Servers
ESI Communications Servers give you the flexibility of both digital functionality and IP-to-the-desktop in any combination.