Sentinel includes many features for Diameter networks:
- 
Accept Diameter Mediation Session Feature — Sets the Sentinel selection key session type to ‘diametermediation’ 
- 
Diameter Determine Network Operator Feature — Sets the Network Operator element of the Sentinel selection key based on the value returned by the DetermineNetworkOperatorfunction
- 
Diameter Subscriber Determination Feature — Used to determine the subscriber address based on AVPs in the CreditControlRequest(INITIAL)
- 
Diameter Unconditional Reject Session Feature — Unconditionally rejects a Diameter session. 
