This feature extracts the MSISDN from a SMMA message, then sends an RP-ACK to the SMMA request

Feature cheat sheet

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

IPSMGWSMMAResonse

No

SMMA

Stateless

POJO

Feature parameters

The Handle SMMA feature supports the following parameters that may be passed in a feature execution script run statement:

Name Allowed Values Description

mode

prepare and send

This is used to determine what action the feature should take when run.

Session Input variables

The feature reads the following fields in Session State

Session State variable name Variable type Comments 
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

 
ReadyForSMResult

enum

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

 
ReadyForSMError

TcapError

The TcapError received in response to the ReadyForSM

Session Output variables

The feature sets the following fields in Session State

Session State variable name Variable type Comments 
MSISDN

String

The MSISDN to be used by the Fetch IMSI feature

Statistics

IPSMGWSMMAResponse statistics are tracked by the sentinel.ipsmgw SBB and can be found under the following parameter set in REM:
SLEE-Usage → sentinel.ipsmgw service → sentinel.ipsmgw SBB → feature → IPSMGWSMMAResponse
or with rhino-stats:
"SLEE-Usage.Services.ServiceID[name=sentinel.ipsmgw,vendor=OpenCloud,version=4.0.0].SbbID[name=sentinel.ipsmgw,vendor=OpenCloud,version=4.0.0].feature.IPSMGWSMMAResponse"

Name Description 
SavedMSISDN

Incremented when the MSISDN has been extracted from the incoming SIP MESSAGE

 
SentRPACK

Incremented when the RP-ACK message is successfully sent to the I-CSCF

 
FailedToSendRPACK

Incremented when the RP-ACK message fails to be sent to the I-CSCF

 
SentRPError

Incremented when the RP-ERROR message is successfully sent to the I-CSCF

 
FailedToSendRPError

Incremented when the RP-ERROR message fails to be sent to the I-CSCF

 
FailedToPrepareSIPMessage

Incremented when we unable to prepare a SIP MESSAGE for the RP-ACK or RP-ERROR to be sent in

 
NoPAIAvailable

Incremented when the P-Asserted-Identity does not give us an ID that can be used as the MSISDN

 
HLRSuppressed

Incremented when HLR Interaction is suppressed

Configuration

The feature is configured with configuration scoped according to a Sentinel Selection Key. The Profile Table used to hold feature configuration is IPSMGWSharedConfigProfileTable.

The following attributes are available

Attributes Type Meaning 
ICSCFURI

String

The I-CSCF SIP URI that will be used to route outbound SIP MESSAGE requests (see SIP Transports and Routing)

 
SuppressHLRInteraction

boolean

If true, no MAP messages will be sent to the HLR. Can only be set to true when DeliveryOrder is PS_ONLY. For more information, refer to Suppression of HLR Interaction

Behaviour

When run with mode prepare and the trigger is a SIP MESSAGE that contains a SMMA, the feature will send a 202 response, then attempt to derive an MSISDN from the 'P-Asserted-Identity' header. The feature will also use the incoming SIP MESSAGE to prepare the responding SIP MESSAGE request that will contain either the RP-ACK or RP-ERROR. This response is prepared but not sent, unless the IPSMGW is configured to suppress HLR Interaction (see Suppression of HLR Interaction), in which case the MESSAGE is sent with RP_ACK

When run with mode send and the trigger is a TCAP response the feature checks the SRI4SMResult, SRI4SMError, ReadyForSMResult, and ReadyForSMError session state fields and sends the RP response based on their values.

If both SRI4SMResult and ReadyForSMResult indicate success it will send an RP-ACK. If either one of them indicates failure it will map the TCAP error to an RP-ERROR cause based on the table below:

TCAP error RP-ERROR cause

unknownSubscriber

UNKNOWN_SUBSCRIBER

callBarred

CALL_BARRED

teleserviceNotProvisioned

REQUESTED_FACILITY_NOT_SUBSCRIBED

absentSubscriber

DESTINATION_OUT_OF_ORDER

facilityNotSupported

REQUESTED_FACILITY_NOT_IMPLEMENTED

Any other value

NETWORK_OUT_OF_ORDER

The prepared SIP Message request is then sent.

If the session state fields indicate that the SendRoutingInfoForSM and/or ReadyForSM operations have not been attempted then the feature will not do anything.

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Sentinel IP-SM-GW Version 4.0.0