You are now looking at the Elastix 2.5 Dashboard.
Based on CentOS 5.10 (Final) , providing a stable, enterprise-grade Linux environment. Elastix 2.5.0 STABLE x86-64
You might ask: Why deploy such an old system? While the Elastix project later merged into the Issabel PBX project (and eventually 4.0/5.0), version 2.5.0 offers unique advantages: You are now looking at the Elastix 2