[{"name":"S2-2401849","title":"LS from GSMA UPG: LS on Network Initiated IMS Data Channel","source":"GSMA UPG","contact":"Boris Antsev","contact-id":70230,"tdoctype":"LS in","for":"Information","abstract":"GSMA NG UPG#08 has identified the use case when network-initiated IMS Data Channel mid-call setup is required. In some cases, e.g customer calsto retailer s Sales Support or to the Customer Care number and service representative or automatic IVR wants to initiate interactive menu during the call. In this scenario UE is not pre-provisioned to initiate IMS Data Channel and network-initiated capability is necessary for supporting UEs.. In the current 23.228 clause AC.7.1 describing bootstrapping procedure Re-INVITE is already allowed for mid-call IMS Data Channel addition but network-initiated Re-INVITE may need additional clarifications. GSMA expects this use case to be frequently used in B2C scenarios and the support of this capability could be crucial for initial IMS Data Channel deployment decisions. Actions to SA WG2, CT WG1 GSMA NG UPG respectfully requests SA WG2 and CT WG1 to take the above information into account in Release 18 NG_RTC work on IMS Data Channel.","secretary_remarks":"Revision of Postponed S2-2400034 from S2#160AH-e. Responses drafted in S2-2402489, S2-2402694. Final response in S2-2403679","agenda_item_sort_order":109,"ainumber":"9.37","ainame":"Generic Rel-18 LSs","tdoc_agenda_sort_order":15730,"status":"replied to","reservation_date":"2024-05-02 14:59:37","uploaded":"2024-02-07 11:12:48","revisionof":"S2-2400034","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2, CT WG1","Cc":"","lsoriginalls":"UPG08_126","lsreply":"S2-2403679","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_161_Athens_2024-02\/Docs\/S2-2401849.zip","group":"S2","meeting":"S2-161","year":2024,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0}]