The contract can be renewed and billed automatically for specified time. Inside the contract duration, counters will be refilled according to their own schedule. In real life you can easily define and bill quarterly contracts giving your customer 10 hours a week. You can define a counter to trigger a message to the user as soon as that counter is used for the first time. For ISPs very concerned about security, Regulus can be run on non-privileged ports by doing an install and specifying the port value.
Regulus update takes minutes.
However if you are doing some long maintenance on your Regulus system configuration, your users will still be able to connect to your system. Regulus will not do any accounting, and your customers will get a free ride. If you define other contracts, counters or add terminal server definitions Regulus will detect that automatically and synchronize again itself on the new configuration without need to restart it. Batch procedures can be used to locate, extract and format record from Rulers.