Unbilled and Underbilled Access Minutes from Weak CABS Reconciliation
Definition
Local exchange carriers routinely miss billable switched/special access usage because CABS records are not fully reconciled to switch/EMR/EMI data and interconnect traffic records. Specialized CABS audit firms report recurring discoveries of unbilled usage, incorrect rates, and missing interconnection charges that are only found once systematic reconciliation is applied.
Key Findings
- Financial Impact: JSI reports recovering ‘lost revenue’ through CABS audits, and CSS notes that reconciliation is required to ‘ensure that all usage is billed, and billed at the proper rates’; industry revenue‑assurance benchmarks typically show 1–3% of access revenue is recoverable when such audits are first implemented (low millions of dollars per year for a mid‑size carrier).
- Frequency: Monthly
- Root Cause: Fragmented data flows between switches, mediation, EMR/EMI files and CABS, plus complex tariffs and interconnection agreements, cause records to drop or price incorrectly; without disciplined monthly reconciliation, these gaps persist and compound over many billing cycles.[1][2][6][10]
Why This Matters
This pain point represents a significant opportunity for B2B solutions targeting Telecommunications Carriers.
Affected Stakeholders
Carrier revenue assurance managers, CABS billing analysts, Intercarrier settlements managers, Regulatory/wholesale finance teams
Deep Analysis (Premium)
Financial Impact
$1-3M annual lost revenue from missing reseller access charges. • Chronic underbilling of access minutes, misapplied or missing rate elements, and unbilled interconnection facilities for cable operators, typically in the 1–3% of relevant access revenue range, equating to seven‑figure annual leakage for a mid‑size carrier plus costs to handle disputes and retroactive rebilling. • Initial implementation of systematic CABS reconciliation typically uncovers 1–3% of access revenue in missed or underbilled charges, equating to low millions of dollars per year in lost wholesale access revenue for a mid‑size carrier, plus additional margin erosion from partner disputes, write‑offs, and delayed cash collection.
Current Workarounds
Excel tracking of reseller interconnect invoices and CDRs. • Tariff Administrator and CABS/billing staff periodically pull CABS outputs, switch CDR extracts, and interconnect partner files into ad‑hoc Excel workbooks and Access/SQL queries to spot‑check minutes, trunk groups, and rate elements; they use email threads and shared drives to track discrepancies and rely on past audit reports from consultants as a proxy for continuous control instead of running a fully automated, daily reconciliation. • Tariff Administrator and revenue‑assurance staff periodically pull VoIP partner traffic summaries, SBC/switch CDR exports, and CABS detail into Excel, run manual lookups and filters by OCN/OCIC, trunk group, and jurisdiction, and track unresolved gaps in email or ticketing tools until they are either written off or addressed in the next audit cycle.
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Methodology & Sources
Data collected via OSINT from regulatory filings, industry audits, and verified case studies.
Related Business Risks
Continued Billing at Wrong Access Rates after Tariff/Contract Changes
Overpayment of Interconnect and Access Charges Due to Weak Reconciliation
Paying for Disconnected or Non‑Inventory Access Services
Billing Disputes and Write‑offs from CABS Data Discrepancies
Delayed Cash Collection from Interconnect Partners Due to Protracted Reconciliation
Operational Bottlenecks from Manual CABS Reconciliation Effort
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