CapSettle – Near Real Time Roaming Data Exchange (Nrtrde)

Near Real Time Roaming Data Exchange (NRTRDE) is a GSMA initiative used to prevent roaming fraud by exchanging roaming records in near real time. Our CapSettle NRTRDE solution allows mobile operators to generate and decode incoming and outgoing NRTRDE files in accordance to the GSMA TD.35 specification and provide a complete overview of anomalies in the network.

Preventing Roaming Fraud With NRTRDE

Near Real Time Roaming Data Exchange (NRTRDE) is a requirement for GSM mobile operators. The purpose of the requirement is to reduce revenue loss due to roaming fraud.

The GSM Association (GSMA) introduced NRTRDE to replace the High Usage Report (HUR). HUR was the standard method of frequently exchanging roaming usage data and detect fraud until October 2008. After this, the GSMA made NRTRDE implementation mandatory for all members. Today, HUR is no longer supported by the GSMA.

With NRTRDE, partner operators have a maximum window of 4 hours to exchange files, as opposed to the 36 hour window given by the HUR standard. This will allow for fast detection of fraudulent activities and unauthorised network usage.


Network generated xDRs are sent to a mediation device. The same files which is the foundation for your TAP files.


The mediation device then format the xDRs into the specified format in CapSettle. Usually the same as for TAP.


For outgoing NRTRDE Files:

The xDR is collected by CapSettle – NRTRDE and encoded into a NRTRDE file the same way one should have encoded a TAP file, but following the GSMA TD.35 standard for NRTRDE files.

For Incoming NRTRDE files:

CapSettle collects the NRTRDE files and decodes it, then distribute the result to the CapSettle database and/or fraud management system.


For outgoing files:

NRTRDE files are generated every 15 minutes and can after that be sent to either a data clearing house or directly to your partner operator.

For incoming files:

Your partner sends you NRTRDE files, either directly or through a Data Clearing House.

How does it work?

Operators receive incoming NRTRDE files from the visited network (VPMN). The TD.35 formatted files are collected and decoded by the CapSettle NRTRDE engine, as well as being validated and checked for errors before being distributed to the NRTRDE database.

Here it can easily be imported as information in other systems such as a Fraud Management Systems or CapSettle Business Intelligence, for dynamic reporting and further analysis.

Generated xDRs are sent from mediation and collected by the CapSettle solution. Here, the files have to pass validation, error detection before being filtered by partner operator agreement.

The xDRs are processed and distributed to database tables. NRTRDE files are generated based on processed xDR information and follow the standardised NRTRDE format as defined by the GSMA.

NRTRDE files are generated in 15 minute intervals, minimising the notification time to the HPMN, about possible fraudulent activity.

NRTRDE Quick Facts

  • Prevents roaming fraud
  • Remove fraud loss liability
  • Compliant with GSMA TD.35
  • Configurable by service/partner
  • Generate files every 15 minutes

Combine this solution

Roaming Billing
Henning Lagerbielke

Henning Lagerbielke

Head of Sales & Business Development

Tel: +46 (0) 763 37 53 96
Mail: Roaming Contact