name: IP-SM-GW
full_form: IP-Short-Message-Gateway
context: transfer in the terminating network (target non-local ID) The illustrations shown in figure 7.2.4-4 are based on the event triggers defined in TS 33.128 [4] for the generation of the xIRI SMSMessage and the xIRI SMSReport. The MSISDN associated with the Party_A (not shown) can be the non-local ID. The target identity determination is made from the SMS-DELIVER. The IRI messages SMSMessage and SMSReport have the same correlation number. When the HSS receives a query from the SMS-GMSC, since the terminating UE is SMS over IP capable, the HSS forwards the request to the IP-SM-GW. The IP-SM-GW sends the query to the HSS to determine the non-IMS NFs that can handle the SMS for that UE. The HSS returns those non-IMS NF addresses, in this flow, it is that of the SMSF. Then, the IP-SM-GW returns its own address to the SMS-GMSC. The SMS-GMSC, that way sends the SMS to the IP-SM-GW and the IP-SM-GW routes the SMS to the UE depending on to which NF the UE is currently registered to. In this flow,
description: The IP-Short-Message-Gateway (IP-SM-GW) is a network function responsible for routing SMS messages between the SMS-GMSC and the UE, depending on the UE's current registration to a non-IMS NF. It interacts with the HSS to determine the non-IMS NF addresses that can handle SMS for a specific UE.
explanation: The IP-SM-GW is classified as a Network Function because it performs a specific task within a telecommunications network, routing SMS messages and interacting with other network elements like the HSS and SMS-GMSC.
section_title: 7.2.4.3	SMS message transfer in the terminating network
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biotag_Description: O,B-Network Function,O,O,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,O,B-Service,O,O,O,O