derivedDataType OverloadControlReportingFairnessBehaviorDT

EcimDerivedString with length constraint (0..14) and pattern restriction. Allowed values are NoFairness, Sip503Response or Sip500Response.

NoFairness - Disable fairness behavior.
Sip503Response - Traffic is rejected by sending SIP 503 (Service Unavailable) without Retry After header, according to RFC7339.
Sip500Response - Traffic is rejected by sending SIP 500 (Service Unavailable) without Retry After header.