SummaInstall

Overview

This node, named "Summa," is designed to interact with the Summa API (version indicated in the code). It supports multiple resources and operations related to telecommunications data management. Specifically, for the resource Send Protocol and operation Send Cancel Location To Current SGSN, the node sends a cancellation request to the current Serving GPRS Support Node (SGSN) associated with a subscriber's SIM card.

This operation is useful in scenarios where a mobile subscriber's location needs to be invalidated or deregistered from the network, such as when a SIM card is swapped, deactivated, or when network reconfiguration requires cancelling the subscriber's current location registration.

Practical examples:

• Telecom operators can use this node to remotely cancel a subscriber's location on the SGSN to prevent service usage after SIM swap or fraud detection.
• Network administrators might automate subscriber session management by cancelling locations during maintenance or troubleshooting.

Properties

Output

The node outputs JSON data representing the response from the Summa API after attempting to send the cancel location request. This typically includes status information about whether the cancellation was successful, any error messages, and possibly metadata about the affected subscriber or network node.

If the API returns binary data (not evident from the provided code), it would represent raw protocol responses or logs, but this is not indicated here.

Dependencies

• Requires an API key credential for authenticating with the Summa API.
• Uses an HTTP client internally to communicate with the Summa backend services.
• The node depends on several internal modules for state management, operation resolution, and execution logic.
• The user must configure the Summa API credentials within n8n before using this node.

Troubleshooting

• Common issues:

  • Invalid or missing ICCID or Serving Node values will cause the API call to fail.
  • Incorrect cancellation type may lead to rejection by the API.
  • Network connectivity problems or incorrect API credentials will result in authentication or connection errors.

• Error messages:

  • Authentication failures indicate invalid or expired API credentials; verify and update them.
  • Validation errors usually specify which input property is incorrect or missing.
  • Timeout or network errors suggest checking internet connectivity or API endpoint availability.

Links and References

• Summa API official documentation (not provided in source, check vendor site)
• n8n documentation on creating and using custom nodes
• Telecommunications standards on SGSN and location cancellation procedures (for deeper understanding)

Note: The summary is based solely on static analysis of the provided source code and property definitions without runtime behavior inference.