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- The 60-Key Expansion Console connects quickly to most current ESI desktop phones (on the IP Server 900 and ESI Communications Servers, as well as the legacy IVX® X-/E-/S-Classes)..
- The 60-Key Expansion Console is compatible with these ESI phone models (digital or IP): ESI 60 Business Phone; ESI 40 Business Phone; and 48-Key Feature Phone.
- Adds 60 more programmable feature keys.
- One Year Warranty