Telecom Billing Validation Audit
Flagship review that reconciles rated usage, invoices, and tariff logic for a named product and billing cycle.
Format: On-site kickoff in Penang or remote data room, then written audit memorandum
Typical duration: 3–6 weeks depending on cycle volume and partner feeds
Delivery: George Town office / secure remote workspace
Pricing basis: Fixed fee scoped to one product and one billing cycle; extensions quoted separately
Who this is for
Finance, revenue assurance, and wholesale teams at mobile operators, MVNOs, and billing vendors who need an independent check that prepaid, postpaid, or wholesale invoices match rated usage for a defined window.
Result you receive
A signed audit memorandum that lists material variances, the tariff or mediation rule involved, estimated financial exposure for the sample, and recommended corrective actions. Supporting workpapers stay in the data room you control.
What is included
- Scoping call to name the product, cycle dates, and discount stacks in play
- Secure intake of CDR or usage samples, rated outputs, and invoice extracts
- Reconciliation of rated amounts to tariff tables and published offers
- Cross-check of a stratified invoice sample against reconstructed charges
- Written findings with severity, evidence references, and remediation notes
- One clarification workshop with your finance or RA stakeholders
What is excluded
- Live changes to production rating or mediation systems
- Full population audits unless separately scoped
- Legal opinions on regulatory disputes
- Ongoing managed monitoring after the engagement closes
How we work
- Confirm sample size, fields required, and masking rules for subscriber identifiers.
- Reconstruct expected charges for selected events using the tariff in force for those dates.
- Compare reconstructed amounts to rated and billed figures; investigate material gaps.
- Document root causes — late feeds, wrong zone maps, stacked discounts, rounding, or mediation filters.
- Deliver the memorandum and walk through priority items.
Preparation we ask from you
A named contact who can answer tariff questions within two business days, read-only extracts for the agreed cycle, and a short brief on known mediation or partner issues already under discussion.
Constraints
We do not accept engagements that require bypassing your access controls or copying unmasked subscriber data outside your approved environment. Work already started on a cycle cannot be paused indefinitely without a reschedule fee — see our refund policy.
Next step
Request a billing review and include the product name, cycle month, and whether interconnect partners are in scope.