Avaya JSD SSU MM R3.1+ VCE MBX 101-250

Protect operations where messaging continuity is critical. This annual support subscription for JSD SSU MM R3.1+ VCE MBX targets deployments in the 101–250 mailbox tier and provides vendor-delivered software updates, security fixes, and incident handling to keep mailbox services available through software issues and platform faults. Engineers get access to Avaya knowledgebase articles, tracked case management, and patches relevant to the R3.1+ release and VCE integration. Procurement gets a single predictable line-item for maintenance, and infrastructure teams keep SLAs intact without hiring additional headcount. Choose this tier when your messaging environment must remain supported by the original vendor and you require clear entitlement for mid-sized mailbox counts.