Avaya CMS R21 New/Add Client Extension 5-Year Premium Support

Keep CMS R21 client extension environments covered with a 5-year premium support option built for new or added deployments. For organizations running contact center operations on Avaya CMS, support coverage is not just a procurement line item — it is part of the operating model that protects continuity, planning, and response readiness. This offering is suited to teams that need dependable vendor support over a longer horizon, especially when client extensions are being introduced or expanded across the environment. A 5-year term helps align support with infrastructure planning cycles, budget forecasting, and the practical realities of maintaining stable contact center operations. Premium support is valuable when uptime matters, when troubleshooting speed affects service levels, and when internal teams want a direct path to vendor-backed assistance for CMS R21 client extension components. It also helps reduce the risk of fragmented coverage across multiple purchase dates by standardizing support duration. Choose this option when you want long-term coverage for CMS R21 client extensions and a cleaner way to manage support across new and added deployments.