TELECOM OPERATOR'S REACHES "FIVE NINE" AVAILABILITY WITH HVR
Any telecom operator that provides prepaid services to customers needs a billing system that is highly reliable and accurate. The goal is 99.999% availability- "five nine". After all: if the billing system is down, the company might be giving away profitable time. With subscribers to a service, or post billing system, this problem is less threatening. Should the billing system go down, the company can always continue to register any phone calls and charge the costs afterwards. With prepaid services, reliability and availability of the billing system is of strategic importance.

This telecom operator provides prepaid services which rely on a trustworthy Ingres-based billing system. Robustness is guaranteed thanks to the hot standby implementation with HVR.
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