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Summa

Consume Summa API (v.0.1.7)

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Overview

The node named "Summa" integrates with the Summa API (version indicated in the node description) to perform various operations on multiple resources. Specifically, for the resource HLR Subscription and operation Get ODB, it retrieves the Operator Determined Barring (ODB) information associated with a given IMSI (International Mobile Subscriber Identity). This is useful in telecom scenarios where you need to check call barring or restrictions applied to a subscriber's profile.

Practical examples include:

  • Querying whether a subscriber identified by an IMSI has any active call barring settings.
  • Integrating telecom backend systems to automate subscriber status checks.
  • Supporting customer service workflows that require real-time subscriber restriction data.

Properties

Name Meaning
Imsi The International Mobile Subscriber Identity string used to identify the subscriber whose ODB information is being requested. This property is required.

Output

The node outputs JSON data containing the ODB details for the specified IMSI. The exact structure depends on the Summa API response but typically includes fields describing the barring status, types of barring applied, and related metadata.

No binary data output is indicated for this operation.

Dependencies

  • Requires an API key credential to authenticate with the Summa API.
  • Uses an HTTP client internally to send requests to the Summa backend.
  • The node depends on the Summa API service being available and reachable.
  • Proper configuration of the API credentials within n8n is necessary.

Troubleshooting

  • Missing or invalid IMSI: Since IMSI is required, ensure it is provided and correctly formatted; otherwise, the API call will fail.
  • Authentication errors: If the API key credential is missing, invalid, or expired, the node will not be able to connect to the Summa API.
  • Network issues: Connectivity problems to the Summa API endpoint can cause request failures.
  • API errors: The Summa API might return errors if the IMSI does not exist or if the requested ODB data is unavailable.

To resolve these:

  • Verify the IMSI input value.
  • Check and update the API authentication credentials.
  • Ensure network connectivity to the Summa API.
  • Review error messages returned by the node for specific API error codes.

Links and References

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