[{"name":"S3i150304","title":"Reply LS to Incoming liaison \u201cGSMA LS on ePDG selection\u201d S3i150210","source":"Minist\u00e8re Economie Indu. Numer","contact":"Pierre Courbon","contact-id":52806,"tdoctype":"LS out","for":"","abstract":"3GPP SA3-LI would like to thank GSMA NG RILTE for the LS to 3GPP SA3-LI on ePDG Selection, about questions introduced by IR.51 and 3GPP TS 23.402 (section 7.2.1 for ePDG discovery). \nThe NG RILTE\u2019s understanding is that according to TS 24.302, in roaming scenarios in which the UE knows the identity of the VPLMN, the UE first attempts to derive the FQDN for ePDG address from the visited PLMN ID and to connect with ePDG in visited network, and only attempts to connect with the ePDG of the HPLMN as the option of last resort.\nNG RILTE highlighted that in certain VoWiFi deployment scenarios the preference of the home operator might be that the UE should connect to the ePDG in home network also when roaming. Possible such scenarios include, for instance, when visited networks have not deployed VoWiFi yet, there is no S2b layer roaming agreement with visited networks, or not enough interoperability testing.","secretary_remarks":"","agenda_item_sort_order":16,"ainumber":"13","ainame":"Outgoing Liaisons","tdoc_agenda_sort_order":0,"status":"revised","reservation_date":"2015-10-06 11:35:39","uploaded":"2015-10-06 21:42:22","revisionof":"","revisedto":"S3i150340","release":"Rel-13","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S3i150210","lsto":"GSMA NG RILTE, 3GPP SA2, 3GPP CT1","Cc":"ETSI TC LI","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/TSG_SA\/WG3_Security\/TSGS3_LI\/2015_59_Austin\/Docs\/S3i150304.zip","group":"S3","meeting":"S3-ah-31571","year":2015,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S3i150340","title":"Reply LS to Incoming liaison \u201cGSMA LS on ePDG selection\u201d S3i150210","source":"Minist\u00e8re Economie Indu. Numer","contact":"Pierre Courbon","contact-id":52806,"tdoctype":"LS out","for":"","abstract":"3GPP SA3-LI would like to thank GSMA NG RILTE for the LS to 3GPP SA3-LI on ePDG Selection, about questions introduced by IR.51 and 3GPP TS 23.402 (section 7.2.1 for ePDG discovery). \nThe NG RILTE\u2019s understanding is that according to TS 24.302, in roaming scenarios in which the UE knows the identity of the VPLMN, the UE first attempts to derive the FQDN for ePDG address from the visited PLMN ID and to connect with ePDG in visited network, and only attempts to connect with the ePDG of the HPLMN as the option of last resort.\nNG RILTE highlighted that in certain VoWiFi deployment scenarios the preference of the home operator might be that the UE should connect to the ePDG in home network also when roaming. Possible such scenarios include, for instance, when visited networks have not deployed VoWiFi yet, there is no S2b layer roaming agreement with visited networks, or not enough interoperability testing.","secretary_remarks":"","agenda_item_sort_order":16,"ainumber":"13","ainame":"Outgoing Liaisons","tdoc_agenda_sort_order":0,"status":"revised","reservation_date":"2015-10-07 19:01:11","uploaded":"2015-10-07 19:06:32","revisionof":"S3i150304","revisedto":"S3i150344","release":"Rel-13","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S3i150210","lsto":"GSMA NG RILTE, 3GPP SA2, 3GPP CT1","Cc":"ETSI TC LI","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/TSG_SA\/WG3_Security\/TSGS3_LI\/2015_59_Austin\/Docs\/S3i150340.zip","group":"S3","meeting":"S3-ah-31571","year":2015,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S3i150344","title":"Reply LS to Incoming liaison \u201cGSMA LS on ePDG selection\u201d S3i150210","source":"Minist\u00e8re Economie Indu. Numer","contact":"Pierre Courbon","contact-id":52806,"tdoctype":"LS out","for":"","abstract":"3GPP SA3-LI would like to thank GSMA NG RILTE for the LS to 3GPP SA3-LI on ePDG Selection, about questions introduced by IR.51 and 3GPP TS 23.402 (section 7.2.1 for ePDG discovery). \nThe NG RILTE\u2019s understanding is that according to TS 24.302, in roaming scenarios in which the UE knows the identity of the VPLMN, the UE first attempts to derive the FQDN for ePDG address from the visited PLMN ID and to connect with ePDG in visited network, and only attempts to connect with the ePDG of the HPLMN as the option of last resort.\nNG RILTE highlighted that in certain VoWiFi deployment scenarios the preference of the home operator might be that the UE should connect to the ePDG in home network also when roaming. Possible such scenarios include, for instance, when visited networks have not deployed VoWiFi yet, there is no S2b layer roaming agreement with visited networks, or not enough interoperability testing.","secretary_remarks":"","agenda_item_sort_order":16,"ainumber":"13","ainame":"Outgoing Liaisons","tdoc_agenda_sort_order":0,"status":"not concluded","reservation_date":"2015-10-07 21:48:03","uploaded":"2016-10-27 10:30:48","revisionof":"S3i150340","revisedto":"","release":"Rel-13","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/TSG_SA\/WG3_Security\/TSGS3_LI\/2015_59_Austin\/Docs\/S3i150344.zip","group":"S3","meeting":"S3-ah-31571","year":2015,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]