PPPoE, hotspot and voucher billing
Operators rarely sell only one of these. Each has a model of its own, and each leaves the subscriber, the invoice and the RADIUS reply agreeing with one another.
PPPoE billing
Every change stays attached to the subscriber record. Package, invoice, payment and the RADIUS reply are one loop, so the account and the session never disagree about what has been paid for.
How it worksHotspot billing
A captive portal, packages priced for a single purchase, and vouchers for the customer who would rather buy a code. The payment clears and the session opens on the router they are already standing under.
How it worksVouchers
Batches are created in one place, printed or sent out, and every code is accounted for from issue to redemption. A voucher that never sold is still one you can find, cancel or reissue.
How it worksPut your subscribers on it this week
Start with the network you already have. Add a router, publish what you sell, and let the payments and reconnections look after themselves.