- TENDER FOR UPGRADE OF MS EXCHANGE SERVER ANNUAL MAINTENANCE SERVICES FOR ICT BACKUP GENERATOR, FIRE SUPPRESSION SYSTEM, HIGH CAPACITY UPS AND MAINTENANCE ON SERVER ROOM NETWORK DEVICES – RFX 1000001048. TENDER FOR UPGRADE OF MS EXCHANGE SERVER ANNUAL MAINTENANCE SERVICES FOR ICT BACKUP GENERATOR, FIRE SUPPRESSION SYSTEM, HIGH CAPACITY UPS AND MAINTENANCE ON SERVER ROOM NETWORK DEVICES – RFX 1000001048.