Run national and international roaming as a controlled, auditable revenue stream—from usage capture to partner settlement.
Bonyan System implements and supports the systems that make roaming work commercially: TAP-OUT generation for inbound roamers, TAP-IN validation and rating verification for outbound roamers, roaming file processing and exchange, inter-operator rating against negotiated agreements, and reconciliation toward clearing houses and roaming partners.
Our solutions follow GSMA specifications and processes, integrate with existing mediation, billing, and settlement environments, and are designed for the volumes, deadlines, and audit requirements of live roaming operations. We also help operators prepare for the transition from TAP-based exchange to newer GSMA standards such as Billing & Charging Evolution (BCE).
Collect and validate usage generated by inbound roamers on your network, rate it against the applicable inter-operator tariff, and generate outgoing TAP files toward roaming partners or your data clearing house. Sequence numbering, file completeness, cut-off deadlines, and resubmission after rejection are managed as controlled processes.
Receive, decode, and validate incoming TAP files for your outbound roamers. Records are checked structurally and commercially—including rate verification against the agreements in force—before conversion into your retail billing and analytics formats. Rejected records and files are handled through controlled return and correction paths using RAP.
Manage the full lifecycle of roaming data files: transfer with clearing houses and partners, sequence and gap control, duplicate detection, format conversion, error quarantine, reprocessing, archiving, and end-to-end audit trails. High-frequency exchange for fraud control, such as NRTRDE, can be supported alongside the standard TAP cycle.
Rate roaming usage against inter-operator tariffs and negotiated discount agreements: tiered and volume-based schemes, time and service differentiation across voice, SMS, and data, taxes and surcharges, currency and SDR conversion, and controlled re-rating when agreements change retroactively. Rating outcomes are traceable to the agreement terms that produced them.
Support domestic roaming arrangements between local operators: capture and separation of national roaming usage, wholesale rating under bilateral agreements, usage reporting toward the partner, and settlement figures both sides can verify. The same rating and reconciliation discipline used internationally is applied to national agreements.
Operate the complete international roaming billing cycle across your agreement footprint: partner and agreement administration, TADIG-coded exchange with clearing houses, inbound and outbound processing, discount settlement, and the reporting needed for wholesale margin visibility per partner, country, and service.
Reconcile exchanged files, rated usage, discount agreements, and clearing house statements into settlement positions per partner. Differences are surfaced with the record-level detail needed to raise or answer disputes, and financial reporting supports wholesale accounting and revenue assurance.
Roaming only works because every operator follows the same rules. Our roaming solutions are built directly on the GSMA Permanent Reference Documents (PRDs) that govern wholesale roaming data exchange, agreements, and settlement:
Compliance is treated as a living requirement, not a one-time certification: PRD release changes, partner-specific interpretations, and clearing house requirements are tracked and applied so that files keep passing validation on both sides of every agreement.
GSMA's Billing & Charging Evolution (BCE) is reshaping how wholesale roaming is billed. Instead of exchanging every usage record through TAP, BCE moves settlement toward report-based exchange between operators—Usage Data Reports, Billing Statement Reports, and Detailed Data Records—a model designed for today's commercial reality of flat rates and discount agreements. For 5G Standalone roaming in particular, wholesale charging is defined on BCE, not on the legacy TAP process, which makes BCE readiness a concrete requirement for operators planning 5G SA, VoLTE, and IoT roaming services.
BCE is specified in its own family of GSMA documents, and we track them the same way we track the TAP-era PRDs:
Bonyan System helps operators approach this transition deliberately: assessing which agreements and partners are BCE-ready, planning coexistence where TAP and BCE run in parallel across the partner footprint, adapting rating and settlement processes to report-based exchange, and keeping fraud and revenue assurance controls effective as the underlying data exchange changes. The goal is a roaming platform that supports today's TAP obligations and the standards that are replacing them—without a disruptive cutover.
Implementation, integration, migration, testing, and managed operations for roaming platforms in production operator environments.
End-to-end delivery of TAP-IN/TAP-OUT processing, file exchange, rating, and settlement functions—including data models, validation rules, agreement configuration, exception paths, operational reporting, testing, and production rollout.
Connect roaming processing to your existing landscape: usage capture from mediation, delivery of rated inbound usage to retail billing, feeds to fraud management and revenue assurance, and settlement figures to financial systems.
Model inter-operator tariffs and discount agreements in the rating platform, verify outcomes against agreement documents, and manage controlled changes—including retroactive re-rating—when commercial terms are renegotiated.
Replace or modernize aging roaming systems in controlled stages: rules and agreement inventory, data migration, parallel-run comparison against the legacy platform, reconciliation, and cutover with a verified fallback position.
Support TADIG-style interoperability testing with new partners and clearing houses: test file generation and validation, error-scenario coverage, and the evidence needed to sign off new agreements or releases.
Day-to-day operation of the roaming billing cycle: file monitoring, deadline management, rejection handling, dispute data preparation, monthly settlement runs, and reporting—delivered with defined responsibilities and audit trails.
We treat every stage—capture, rating, exchange, settlement—as part of the wholesale revenue path, with the completeness controls, reconciliation, and traceability that revenue processes require.
GSMA specifications, clearing house requirements, and partner-specific rules are applied precisely and kept current, so files pass validation and settlements hold up in disputes.
Every rated amount is traceable to the tariff or discount agreement that produced it—essential when partners, auditors, or regulators ask why a figure is what it is.
Roaming systems never stand alone. We connect them cleanly to mediation, billing, charging, fraud, revenue assurance, and financial reporting in complex BSS/OSS environments.
We design roaming platforms that meet today's TAP obligations while keeping a practical path open to BCE and the next generation of wholesale billing standards.