Case Study: San Diego State University achieves resilient 200,000‑calls/week UC and 4X maintenance savings with AVST CX-E

San Diego State University Turns to AVST for Mission Critical UC and Voice Application Platform that Supports 200,000 Calls Per Week

San Diego State University, the largest campus in the CSU system with about 34,000 students, faced an end-of-life Octel Aria voicemail system across its main and remote campuses. With peak demand reaching about 200,000 calls per week—especially to student services—SDSU needed a next-generation unified communications solution that would integrate with existing telephony and Google Gmail, support mobility and automation, and provide high resiliency for mission-critical voice applications.

SDSU selected AVST’s CX-E platform and executed a smooth cutover using an Octel-compatible TUI and local reseller support. CX-E delivered unified messaging (including Gmail integration and mobile/web access), a redundant deployment of three Call Servers plus one System Server for high availability, and immediate operational benefits: seamless adoption, a fourfold reduction in maintenance costs versus the legacy system, reliable handling of heavy call volumes, and a platform for future speech-enabled services and automation.

San Diego State University

Riny Ledgerwood

SDSU Director of Voice Services & ATI