By means of a configuration flag, 'suppressHLRInteraction' in Shared Configuration Profile, the IP-SM-GW may suppress all MAP messaging sent to the HLR. This mode is only available when DeliveryOrder is PS_ONLY.
IPSMGWPSDelivery: ReportSM with DeliveryStatus is omitted.
IPSMGWATMRegistration: the feature is inhibited
IPSMGWFetchIMSI: the feature is inhibited
IPSMGWReadyForSM: the feature is inhibited
SMMAResponseFeature: the feature prepares and sends the answer MESSAGE with RP_ACK when called in 'prepare' mode
In all cases a specific counter is increased to report the suppression.
In the routing part of the flow, it is assumed the SMSC will send requests directly to IPSMGW
In the FSM part, ReportSM with Delivery Status will not be sent.
On registration, no AnytimeModification, SendRoutingInfoForSM or ReadyForSM messages are be sent to the HLR
On deregistration, ATM is suppressed
SendRoutingInfoForSM and ReadyForSM are suppressed. The Sentinel IP Short Message Gateway will respond with RP_Ack.