ESI Digital Cordless II Phone (5000-0526) Analog Terminal Adapters they simply plug right into

they simply plug right into the ports located on the bottom of the conference phone

and an IP router all in a single box

Compatible with DXP Phone System

(1) Polycom VVX 311 IP Phone (2200-48350-025)

MPN: 8400005

ESI Digital Cordless II Phone (5000-0526) Analog Terminal Adapters they simply plug right intoESI Digital Cordless II Description: The ESI Digital Cordless II is a DECT 6. 0 cordless phone that features eight programmable buttons, a backlit display, speakerphone, headset jack and more. The ESI 5000 0526 Digital Cordless 2 is supported on the ESI IP Server 900 as well as ESI CS servers. ESI 5000 0526 Features: 8 Programmable Keys DECT 6. 0 Technology 1. 9 GHz Frequency Display Backlit Multi Lined Speakerphone Headset Jack Voicemail Key