This feature analyses the contents of an incoming Tcap Message to determine if it contains SRIForSM result SUCCESS or FAILURE (AbsentSubscriber).

Feature cheat sheet

Feature Name Network Operator Data Used in PlanId(s) Stateful or Stateless POJO Feature or SBB Feature

DetermineSRIForSMFailureResult

No

N/A

Stateless

POJO

Session Input variables

The feature reads the following fields in Session State

Session State variable name Variable type Comments 
MTFSMDeliveryOrder

com.opencloud.sentinel.ipsmgw.shared.config.profile.DeliveryOrder

In the absentSubscriber case, If CS_ONLY, will set LookupIMSRegistration to false

Session Output variables

The feature sets the following fields in Session State

Session State variable name Variable type Comments 
LookUpIMSRegistration

Boolean

 
SRI4SMResult

enum

Indicates if the SendRoutingInfoForSM request has succeeded. Allowed values are NOT_ATTEMPTED, SUCCESS, and FAILED

 
SRI4SMError

TcapError

The TcapError received in response to the SendRoutingInfoForSMRequest

Statistics

The feature has no statistics.

Behaviour

The feature checks if the trigger message is a TCAP Message, if it is then it analyses the components to determine if the Tcap Message contains a SRIForSM response and sets the following session state fields:

  • SRI4SMResult SUCCESS or FAILURE depending on whether a TCOperationResult or TCError

  • LookupIMSRegistration if a TCError AbsentSubscriber was received.

Both are used subsequently in feature scripts to control behaviour, LookupIMSRegistration is used to indicate whether subscriber data should be read from Cassandra (IMS Registration). If the subscriber is IMS registered or the SRIForSM result indicated success then delivery will be attempted.

SRI4SM_SipThirdPartyAccess_PartyResponse:
    FeatureScriptSrc: featurescript SipThirdPartyAccessPartyResponse {
      run IPSMGWMapProxy
      run DetermineSRIForSMFailureResult
      if session.LookupIMSRegistration {
          run IPSMGWRegistrationLookupFromCassandra
      }
      if session.isSMSOverIPRegistered or session.SRI4SMResult.SUCCESS {
          run IPSMGWModifySRILeg
          run IPSMGWGenerateMTCorrelationId
          run IPSMGWStoreRoutingInfoCassandra mode "store"
          run IPSMGWAdjustRoutingInfoResponse
      }
    }
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Sentinel IP-SM-GW Version 3.1.0