ProCloud Plus Service for a forty eight port ADTRAN switch including NetVanta 1238 1238P 1638 1638P 1550-48 1550-48P which provides: centralized cloud infrastructure services 7x24 proactive monitoring and alerts customized reporting configuration changes next business day remote hardware replacement access to technical support at 1 hour priority response 3 year. *No ProCare Maintenance is required when switch is under an active ProCloud Plus or ProCloud service plan.*