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5000-0736-HEB - 55D 48 Key Digital Feature Phone, full duplex with backlit display [includes headset jack], single.
Includes a 1 year warranty
48-Key Phone ESI's 48-Key phone offers an impressive combination of power and ease-of-use.
5000-0594 - Refurbished ESI 60D (Digital) Business Phone [includes headset jack] Single
ESI 60 For the most active phone users, the ESI 60 Business Phone is built to help its users achieve maximum productivity.
The ESI SIP 8 Card is designed for the ESI Communications Servers and offers eight SIP trunk ports. The ESI 5000-0550 Card features dual LAN ports for connectivity as well as a single USB port for configuration.