The MCS 7835-I1 applies the Unified CallManager appliance that supports Cisco Unified CallManager 5.0 using Intel Xeon 3.4GHz processors with 800 MHz FSB and 1MB of layer 2 cache. The MCS 7835-l1 is 2RU platform that minimizes rack space. Frontier offers used and refurbished MCS 7835-I1 Unified CallManager appliances. Call Frontier today or simply request a quote. 866-226-6344