Avaya SA ESS+UA C/D PRT 8 x 5 5-Year (355853J)

Preserve long-term availability of Avaya communications with a five-year support and upgrade contract. The SA ESS+UA C/D PRT 8 x 5 SKU (MPN 355853J) packages ongoing vendor support during standard business hours with formal entitlement to software upgrades and official patches. A five-year term reduces renewal overhead and aligns with multi-year refresh cycles for critical telephony and UC platforms. Support covers incident intake, vendor case escalation, and entitlement verification required for licensed upgrades. This SKU is intended for infrastructure teams that prioritize predictable vendor accountability across a multi-year horizon without the cost premium of round-the-clock coverage. Use it where long-term upgrade predictability, documented vendor responsibility, and simplified procurement are higher-value than intermittent, ad hoc support models.