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Solution · Roaming · Interconnect

Roaming and out-of-agreement ranges

The operator decides which foreign subscriptions it serves, by IMSI or by operator range.

The problem

The demand on the operator

Foreign subscriptions in permanent roaming and operator ranges without an agreement occupy the network and generate costs the operator does not recover.

The response

ATC's response

Sx-EIR allows, observes or restricts subscriptions by IMSI, by list or by operator range (MCC-MNC). The ROAM-GUARD function applies the operator's roaming agreement rule.

IMSI
How it works

How it operates in the network

  1. IMSI presence

    The diagnostic confirms, interface by interface, that the network query includes the IMSI.

  2. Rules by range

    The core applies the rule by list or by operator range (MCC-MNC).

  3. Measurement

    The economic value of roaming is calculated with the operator's roaming billing.

IMSI control

IMSI blocking and control

Allows, observes or restricts subscriptions by IMSI, by list or by operator range (MCC-MNC). It is combined with the IMEI and the MSISDN through the IMEI–IMSI–MSISDN link.

Regional case

IMSI blocking in permanent roaming

Context

Mobile operator in the Andean region with foreign subscriptions in permanent roaming that occupied its network without a roaming agreement with the operator.

ATC's intervention

ATC put into production IMSI blocking and observation on Sx-EIR, by list and by operator range (MCC-MNC).

The ROAM-GUARD function extends the view to all foreign IMSIs, by country and by agreement.

Result

The operator decides in the network which foreign subscriptions it serves. The analysis showed that most of what was blocked were Internet of Things (IoT) modules and trackers, information that guides the local offering of machine-to-machine (M2M) services.

Sx-EIR · IMSI-CONTROL

Results

Results for the operator

  • Roaming agreement rule applied in the network
  • Permanent roaming under control
  • Every response recorded and available for audit
What delivers it

Modules, platforms and services

Sx-EIR

IMSI blocking and control

IMSI blocking and control, by list or by operator range

View details
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Next step

Data is processed on the infrastructure the operator designates, under its control.

ATC reviews the platform the operator prioritizes and proposes the appropriate configuration. Sizing and review are provided at no cost.

  • Review of the platform and the network interfaces
  • Sizing according to the operator's infrastructure
  • Staged proposal: module, platform or delegated operation
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