Hosted Exchange vs On-Premises

	TTAsia’s Hosted Exchange Solution	On-Premises Solution
Setup	No need to purchase and install hardware and software. Fast implementation	Need to purchase and install hardware and software.Long implementation period required on planning and testing
Investment	No capital expenditure, predictable operating costs and low total cost of ownership	High capital expenditure and total cost of ownership
Maintenance	Maintenance, monitoring and updates by TTAsia’s email experts on 7x24 basis	In-house IT expertise required for on-going maintenance of the system
Redundancy	Load-balancing over multiple servers and data centres means effectively zero downtime	Single point of failure. Significant additional investment required for full redundancy
Scalability	Easily scales with your business	Not scalable with your business changes
Security	Protected by Sentry EDS, industry-leading email security service	Additional investment required
Value-Added Service	Optional email archiving service, SharePoint, China Email Intelligent Routing available	Additional investment required