Avaya 291372J SA Pref C/D Core R6 to Mainstream 3Y

Maintain support continuity for Avaya C/D Core R6 deployments with a 3-year preferred support package designed for the transition to mainstream coverage. It gives infrastructure teams a practical way to keep critical communications systems under vendor-backed protection while they plan upgrades, coordinate change windows, and sequence capital spending. Preferred support is a strong fit when the platform still matters operationally, but the organization needs a finite bridge to the next lifecycle stage. The 3-year term helps teams manage exposure without overcommitting to a longer horizon than the roadmap requires. That balance is especially useful when procurement, engineering, and operations must agree on timing before a broader refresh can move forward. For buyers comparing support options, this package offers a tighter planning window than longer-term coverage while still preserving the discipline of a formal support entitlement. It is built for organizations that want to protect service continuity, keep migration decisions orderly, and avoid the cost and disruption of premature replacement.