IVSTEL (Interactive Voice Systems Telecommunications) is Australia's premier developer of solutions for the Excel Switch. We are based in Sydney with a focus on Asia Pacific and with customers throughout the world.

We develop telecommunication solutions, provide 24x7 support and professional services for Telephone Companies, Service Providers and partners using the open programmable Dialogic Excel CSP Converged Services Platform.

IVSTEL has installed Excel CSP systems for customers using ISDN, SS7 and VoIP services that this versatile switch supports.

IVSTEL started in 1995 and our business success is based on sound technical products and our product direction is driven by the demands of our customers.

Our major software products are called NOVA for fixed line and MARS for Mobile which are used to bill and control telephone calls on one or more Excel switches. NOVA and MARS provide a real time Central Billing System for control of multiple Excel switches with millions of accounts and thousands of simultaneous connections. They allow Service Providers to offer their customers enhanced Prepaid and Postpaid services for Calling Card and Wholesale Least Cost Routing.