B.1 Scope

29.3113GPPRelease 17Service Level Interworking (SLI) for messaging servicesTS

The present annex defines how the sending party’s address (SM-RP-OA parameter in case of SMS-SUBMIT, TP-OA element in case of SMS-DELIVER), which is mandatory in SMS, is set to anonymise the sender’s identity and to clearly indicate that for the receiver of the SMS at the same time.