Avaya SA ESS+UA C/D SYS C190 3YMO

Protect Avaya C190 system deployments with a three-year ESS+UA maintenance contract that secures software updates, technical case handling and vendor-backed remediation tied to entitlement MPN 355478J. Multi-year coverage reduces administrative churn and preserves a validated upgrade path for integrated voice and UC components. This SKU is intended for infrastructure owners who prefer a predictable, extended support window to match hardware refresh cycles and contract budgets. Over a three-year term, teams receive access to Avaya-released patches and version updates, remote troubleshooting and prioritized vendor escalation for production-impacting incidents. The offering helps engineering teams plan change windows with vendor guidance and eliminates gaps that can create security or interoperability risk when software falls behind. Procurement benefits from consolidated renewal timing and the ability to align support lifecycle with hardware and licensing strategies.