[{"name":"R5-256193","title":"Discussion on the management of redundant transmission for RTT calls","source":"Orange, MCC TF160","contact":"Guillaume Tesserault","contact-id":103462,"tdoctype":"discussion","for":"Endorsement","abstract":"During RAN5#107 and RAN5#108, divergences were identified regarding the content of the SDP offer for RTT calls, particularly concerning the redundancy aspect that needs to be clarified. _x000D_\nAccording to RAN5 working assumption red\/1000 is optional in the initial SDP offer but Orange and TF160 do not necessarily agree and have an alternative interpretation of the specifications._x000D_\nProposition 3-1 Based on Observations 2-1 and 2-2, we propose to complete the attributes for media text to reflect that redundancy is a mandatory requirement for RTT calls _x000D_\nIn TS 34.229-1 : test case 17.19 and clause C54_x000D_\nIn TS 34.229-5 : test cases 7.35, 7.36 and clause A29","secretary_remarks":"","agenda_item_sort_order":1160,"ainumber":"6.6.6.6","ainame":"Discussion Papers, Work Plan, TC lists","tdoc_agenda_sort_order":619300,"status":"revised","reservation_date":"2025-07-11 09:32:02","uploaded":"2025-11-07 21:15:05","revisionof":"","revisedto":"R5-256667","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG5_Test_ex-T1\/TSGR5__109_Dallas\/Docs\/R5-256193.zip","group":"R5","meeting":"R5-109","year":2025,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"R5-256355","title":"RFC 4103 and redundancy","source":"Ericsson","contact":"Bo J\u00f6nsson","contact-id":76116,"tdoctype":"discussion","for":"Endorsement","abstract":"Test cases for RTT (Real time text) refer to RFC 4103.  For the payload type and particular redundancy there\u2019s some dicussions. This paper provides some RFC information and background. _x000D_\n2\tDiscussion_x000D_\nThe RFC 4103 [1] defines a payload type for carrying text conversation session contents in RTP packets. Specific details for Protection against Loss of Data are also described._x000D_\n..._x000D_\nThe \u201cConsideration must be devoted to keeping loss of text due to packet loss within acceptable limits\u201d means some action and\/or clarification on \u201cProtection against Loss of Data\u201d is mandatory._x000D_\nObservation 2-2:_x000D_\nFor \u201cThe default method that MUST be used, when no other method is explicitly selected, is redundancy in accordance with RFC 2198 [3].\u201d. Meaning redundancy could be regarded as mandatory unless any other method is selected. _x000D_\nProposal 2-1:_x000D_\nAdd a capability: For text, the protection against Loss of Data is done with other method than redundancy._x000D_\nProposal 2-2:_x000D_\nAlign the RTT test cases to conditionally mandate the default method, i.e. redundancy. _x000D_\n3\tProposal_x000D_\nIt\u2019s proposed to implement the proposals 2-1 and 2-2.","secretary_remarks":"","agenda_item_sort_order":1160,"ainumber":"6.6.6.6","ainame":"Discussion Papers, Work Plan, TC lists","tdoc_agenda_sort_order":635500,"status":"noted","reservation_date":"2025-07-11 13:47:02","uploaded":"2025-11-07 13:58:39","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG5_Test_ex-T1\/TSGR5__109_Dallas\/Docs\/R5-256355.zip","group":"R5","meeting":"R5-109","year":2025,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"R5-256667","title":"Discussion on the management of redundant transmission for RTT calls","source":"Orange, MCC TF160","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"discussion","for":"Endorsement","abstract":"","secretary_remarks":"","agenda_item_sort_order":1160,"ainumber":"6.6.6.6","ainame":"Discussion Papers, Work Plan, TC lists","tdoc_agenda_sort_order":619301,"status":"noted","reservation_date":"2025-01-12 13:39:42","uploaded":null,"revisionof":"R5-256193","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"","group":"R5","meeting":"R5-109","year":2025,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0}]