Who benefits from eSIM Tracer?

  • MNOs, MVNOs, M2M connectivity providers, and private network providers gain valuable insights into device behavior and issues within the network.
  • EUMs troubleshoot problems related to specific eSIM and iSIM profiles.
  • Manufacturers of chipsets, modules and devices streamline their development processes.

Data recording

eSIM Tracer allows live monitoring of communication between a cellular module and a soldered eSIM or iSIM, even without direct physical access to the SIM interface. Logging data is displayed in a clear UI and the visualization includes information on timing, translated command name, status information, as well as command and response data.

 

Monitoring of ISO application layer

Displays real-time monitoring of ISO Application Layer communications (ISO/IEC 7816 protocols; T=0). The configurable spreadsheet allows users to select which columns to display, offering detailed views of APDU commands. A translation of commands and elementary files (EFs) is offered for selected entries, e.g. for READ/UPDATE commands.

 

eSIM Tracer setup

Data and data format are different between different chipset/module/mobile equipment manufactures. The service providing the device/module vendor-specific data (eSIM Tracer adaptor) utilizes a Rest API (OpenAPI 3.0) defined by COMPRION, which can be implemented by either the vendor or COMPRION.

 

eSIM Tracer supports Multiple Enabled Profiles functionality

Enhanced analysis functions for developers and integrators

The eSIM Tracer enables detailed analysis of the communication of multiple enabled profiles (MEP). Individual APDUs can be precisely assigned to the eSIM port [or Logical Secure Element (LSE) according to ETSI TS 102 221]. This allows developers to verify whether a profile download was performed correctly – a decisive advantage for troubleshooting complex eSIM processes. Support for MEP is adaptor-dependent.

 

"It was a missing piece of the puzzle that was crucial for us. As an operator, the definition and validation of eSIM profiles is a must. We cannot afford to get it wrong — we must deploy something to the market that is error-free."

— Christophe Saraiva, Senior VAS Specialist at NOS

© 2026 COMPRION GmbH

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