Billing & Revenue Management

Where billing sits in Lead-to-Cash, the capabilities that make up the domain, its key interfaces, and why billing is the hardest BSS system to replace.

Commercial, service and billing state, the Install Base as the record of what the customer has, and how lifecycle events reach billing.

CDR collection, normalisation, correlation, enrichment — the data pipeline from network to billing and its revenue leakage risks.

Real-time vs batch rating, event types (recurring, usage, one-time), charge calculation, and the OCS architecture for prepaid.

Recurring charges, the SLM dependency, the product-to-invoice chain, lifecycle events and the bill run.

Worked charges and credits for activation, upgrade, downgrade, add-on, suspension, termination and adjustment, and the proration methods behind them.

Prepaid/postpaid convergence, the dual-stack problem, single balance architecture, unified rating, and the OCS role.

Wholesale settlement between operators, TAP/RAP/NRTRDE standards, clearing houses, and reconciliation challenges.

Leakage detection across the billing chain, CDR reconciliation, margin analysis, and why RA needs cross-system visibility.

How fraud differs from revenue assurance, the pipeline from activity through detection, scoring and decision to allow, challenge, restrict or block, then case, investigation, recovery and learning, and the tensions every control sits between.

SIM swap and account takeover, IRSF, subscription, payment and device or SIM fraud: where each gets in, the signals that give it away, the controls that stop it and who carries the loss.

Payment lifecycle, the dunning escalation ladder, credit management, debt aging, write-offs, and SLM integration for service actions.

Run a customer through product, order, fulfilment, install base, usage, mediation, rating, billing and payment; inject failures and find the leakage; then investigate fraud alerts and decide what to do.