Sentinel calculates a key for every session in Sentinel (call, SMS, data session, and so on).

How does Sentinel use the selection key?

Sentinel uses a session’s selection key to select the features that will be run for that session, and the configuration that will be applied for those features.

The Sentinel selection key has several fields that progressively narrow the scope of feature and configuration selection:

sentinel selection key
  • Platform operator — identifies the operator of the Sentinel platform

  • Network operator — identifies the operator of the network which the session belongs too (may differ from platform operator if the network is a MVNO)

  • Session type — identifies the type of session (for example, MO-Call or SMS)

  • Plan Id — identifies the subscriber’s plan or subscriber type

  • Subscription Id — identifies the subscriber (for example MSISDN).

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