24×7 technical support for high-load critical systems and 8×5 technical support for other types of systems. Scope of service: 1) SLA-guaranteed service time; 2) prompt diagnostics and problem localization; 3) failure recovery; 4) functionality consulting; 5) delivery of updates and installation assistance; 6) knowledge base on the entire product portfolio of Arenadata; 7) Service Desk web portal for users.