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Spec #CR #Revision #Impacted VersionTarget ReleaseTitleWG TDoc #WG statusTSG TDoc #TSG statusNew Version
33.1270184-18.1.0Rel-18STIR/SHAKEN: Updates to have alignment with stage 3 Details s3i220510     
33.1270183-17.6.0Rel-17STIR/SHAKEN: Updates to have alignment with stage 3 Details s3i220509     
33.1270182-17.6.0Rel-17Correction to UDM xIRI generation Details s3i220506     
33.1270181-18.1.0Rel-18Correction to UDM xIRI generation Details s3i220505     
33.1270180118.0.0Rel-18Support of location information request for both T2P and P2T requests in alignment with TS 33.128 Details s3i220464 agreedSP-220756approved18.1.0
33.1270180-18.0.0Rel-18Support of location information request for both T2P and P2T requests in alignment with TS 33.128 Details s3i220438 revised   
33.1270179117.5.0Rel-17Support of location information request for both T2P and P2T requests in alignment with TS 33.128 Details s3i220463 agreedSP-220755approved17.6.0
33.1270179-17.5.0Rel-17Support of location information request for both T2P and P2T requests in alignment with TS 33.128 Details s3i220437 revised   
33.1270178118.0.0Rel-18Corrections to LI at UDM (Rel 18) Details s3i220462 agreedSP-220755approved18.1.0
33.1270178-18.0.0Rel-18Corrections to LI at UDM (Rel 18) Details s3i220433 revised   
33.1270177-17.5.0Rel-17Corrections to LI at UDM (Rel 17) Details s3i220432 agreedSP-220755approved17.6.0
33.1270176118.0.0Rel-18Location acquisition architectures Details s3i220483 agreedSP-220756approved18.1.0
33.1270176-18.0.0Rel-18Location acquisition architectures Details s3i220429 revised   
33.1270175-18.0.0Rel-18Addition of Stage 2 Session Summary Details s3i220347 not pursued   
33.1270174-17.5.0Rel-17Addition of Stage 2 Session Summary Details s3i220345 not pursued   
33.1270173218.0.0Rel-18Edge Computing Aware UE Details s3i220366 agreedSP-220756approved18.1.0
33.1270173118.0.0Rel-18Edge Computing Aware UE Details s3i220351 revised   
33.1270173-18.0.0Rel-18Edge Computing Aware UE Details s3i220310 revised   
33.1270172-17.4.0Rel-17Clarification of Location Translation Stage 2 Details s3i220249 agreedSP-220386approved17.5.0
33.1270171-17.4.0Rel-17Correction of IMEI Target Identifier description Details s3i220241 agreedSP-220386approved17.5.0
33.1270170117.4.0Rel-17Corrections to LI for combined SMF+PGW-C Details s3i220250 agreedSP-220386approved17.5.0
33.1270170-17.4.0Rel-17Corrections to LI for combined SMF+PGW-C Details s3i220240 revised   
33.1270169-17.4.0Rel-17Edge Computing: LI at stage 2 for Edge-unaware UE Details s3i220235 not pursued   
33.1270168-17.4.0Rel-17Correction and homogenization of terms designating UE Details s3i220232 agreedSP-220386approved17.5.0
33.1270167117.4.0Rel-18Addition of Handover LI Stage 2 Details s3i220251 agreedSP-220387approved18.0.0
33.1270167-17.4.0Rel-18Addition of Handover LI Stage 2 Details s3i220223 revised   
33.1270166-17.4.0Rel-18Clarification of Location Translation Stage 2 Details s3i220219 not pursued   
33.1270165117.4.0Rel-17Inconsistent use of IEF, ICF and IQF terminology Details s3i220248 agreedSP-220386approved17.5.0
33.1270165-17.4.0Rel-17Inconsistent use of IEF, ICF and IQF terminology Details s3i220212 revised   
33.1270164116.10.0Rel-16Inconsistent use of IEF, ICF and IQF terminology Details s3i220247 agreedSP-220385approved16.11.0
33.1270164-16.10.0Rel-16Inconsistent use of IEF, ICF and IQF terminology Details s3i220208 revised   
33.1270163117.3.0Rel-17TS 33.127 - Corrections and Editorial changes Details s3i220147 agreedSP-220258approved17.4.0
33.1270163-17.3.0Rel-17TS 33.127 - Corrections and Editorial changes Details s3i220122 revised   
33.1270162117.3.0Rel-17Enhancement of LI/LALS system in VPLMN Details s3i220146 agreedSP-220258approved17.4.0
33.1270162-17.3.0Rel-17Enhancement of LI/LALS system in VPLMN Details s3i220115 revised   
33.1270161217.3.0Rel-17Measurement Report with LI/LALS in 5GC Details s3i220144 agreedSP-220258approved17.4.0
33.1270161117.3.0Rel-17Measurement Report with LI/LALS in 5GC Details s3i220127 revised   
33.1270161-17.3.0Rel-17Measurement Report with LI/LALS in 5GC Details s3i220114 revised   
33.1270160217.3.0Rel-17Measurement Report with LI/LALS in EPC Details s3i220145 agreedSP-220258approved17.4.0
33.1270160117.3.0Rel-17Measurement Report with LI/LALS in EPC Details s3i220129 revised   
33.1270160-17.3.0Rel-17Measurement Report with LI/LALS in EPC Details s3i220113 revised   
33.1270159117.3.0Rel-17Updates to Stage 2 RCS Topologies and IMS utilisation Details s3i220055 agreedSP-220258approved17.4.0
33.1270159-17.3.0Rel-17Updates to Stage 2 RCS Topologies and IMS utilisation Details s3i220045 revised   
33.1270158217.3.0Rel-17Corrections to 4G-5G Combo Node LI Details s3i220124 not pursued   
33.1270158117.3.0Rel-17Corrections to 4G-5G Combo Node LI Details s3i220054 revised   
33.1270158-17.3.0Rel-17Corrections to 4G-5G Combo Node LI Details s3i220044 revised   
33.1270157117.3.0Rel-17Enhancements to LI at the UDM Stage 2 Details s3i220053 agreedSP-220258approved17.4.0
33.1270157-17.3.0Rel-17Enhancements to LI at the UDM Stage 2 Details s3i220023 revised   
33.1270156-17.2.0Rel-17GPSI for AIC - State 2 Details s3i210843 agreedSP-211409approved17.3.0
33.1270155-17.2.0Rel-17IMS stage 2 clarification on PBX target identities Details s3i210830 agreedSP-211409approved17.3.0
33.1270154117.2.0Rel-17IMS stage 2 clarification due to STIR/SHAKEN and RCD/eCNAM Details s3i210859 agreedSP-211409approved17.3.0
33.1270154-17.2.0Rel-17IMS stage 2 clarification due to STIR/SHAKEN and RCD/eCNAM Details s3i210829 revised   
33.1270153117.2.0Rel-17LI for EPC-5GC Interworking Stage 2 Details s3i210858 agreedSP-211409approved17.3.0
33.1270153-17.2.0Rel-17LI for EPC-5GC Interworking Stage 2 Details s3i210820 revised   
33.1270152-17.2.0Rel-17Wrong stage 2 normative text of identifier association xIRI for the IRI-POI in the AMF and MME Details s3i210718 agreedSP-211409approved17.3.0
33.1270151-16.9.0Rel-16Wrong stage 2 normative text of identifier association xIRI for the IRI-POI in the AMF and MME Details s3i210717 agreedSP-211408approved16.10.0
33.1270150-17.1.0Rel-17Update to start of interception with registered UE record at the AMF Details s3i210617 withdrawn   
33.1270149-17.1.0Rel-17Update to Stage 2 LI at the SGW/PGW Details s3i210612 not pursued   
33.1270148-17.1.0Rel-17Correction of LI architecture for LI at the ePDG Details s3i210611 agreedSP-210829approved17.2.0
33.1270147-17.1.0Rel-17Enhancement of IMS in stage 2 Details s3i210606 withdrawn   
33.1270146117.1.0Rel-17Changes to EPC/5G Interworking LI architecture figure Details s3i210492 agreedSP-210829approved17.2.0
33.1270146-17.1.0Rel-17Changes to EPC/5G Interworking LI architecture figure Details s3i210457 revised   
33.1270145117.1.0Rel-17Changes to 5G core-anchored LI architecture figure Details s3i210491 agreedSP-210829approved17.2.0
33.1270145-17.1.0Rel-17Changes to 5G core-anchored LI architecture figure Details s3i210456 revised   
33.1270144117.1.0Rel-17Update of stage 2 language for packet header information reporting Details s3i210490 agreedSP-210829approved17.2.0
33.1270144-17.1.0Rel-17Update of stage 2 language for packet header information reporting Details s3i210439 revised   
33.1270143116.8.0Rel-16Changes to align stage 2 and stage 3 PTC service Details s3i210484 agreedSP-210828approved16.9.0
33.1270143-16.8.0Rel-16Changes to align stage 2 and stage 3 PTC service Details s3i210438 revised   
33.1270142117.1.0Rel-17Changes to align stage 2 and stage 3 PTC service Details s3i210489 agreedSP-210829approved17.2.0
33.1270142-17.1.0Rel-17Changes to align stage 2 and stage 3 PTC service Details s3i210436 revised   
33.1270141117.1.0Rel-17Annex A.1 and A.2 Corrections for 33.127 Details s3i210488 agreedSP-210829approved17.2.0
33.1270141-17.1.0Rel-17Annex A.1 and A.2 Corrections for 33.127 Details s3i210423 revised   
33.1270140117.1.0Rel-17CR adding LI for AKMA (stage 2) Details s3i210487 agreedSP-210829approved17.2.0
33.1270140-17.1.0Rel-17CR adding LI for AKMA (stage 2) Details s3i210421 revised   
33.1270139-17.1.0Rel-17Clarification of Non-3GPP access reporting Details s3i210420 agreedSP-210829approved17.2.0
33.1270138-17.1.0Rel-17Correction of Caching Duration Setting Guidance Details s3i210416 agreedSP-210828approved17.2.0
33.1270137-16.8.0Rel-16Correction of Caching Duration Setting Guidance Details s3i210415 agreedSP-210828approved16.9.0
33.1270136517.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in Stage 2 Details s3i210643 agreedSP-210829approved17.2.0
33.1270136417.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in Stage 2 Details s3i210620 revised   
33.1270136317.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in Stage 2 Details s3i210616 revised   
33.1270136217.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in Stage 2 Details s3i210605 revised   
33.1270136117.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in TS 33.127 Details s3i210486 revised   
33.1270136-17.1.0Rel-17STIR/SHAKEN/eCNAM/RCD in TS 33.127 Details s3i210411 revised   
33.1270135417.1.0Rel-17stage 2 of RCS Details s3i210642 agreedSP-210829approved17.2.0
33.1270135317.1.0Rel-17stage 2 of RCS Details s3i210604 revised   
33.1270135217.1.0Rel-17RCS in TS 33.127 Details s3i210485 revised   
33.1270135117.1.0Rel-17RCS in TS 33.127 Details s3i210417 revised   
33.1270135-17.1.0Rel-17RCS in TS 33.127 Details s3i210409 revised   
33.1270134-17.0.0Rel-17LI state transfers in SMF sets Details s3i210356 agreedSP-210302approved17.1.0
33.1270133117.0.0Rel-17Changes to align stage 2 and stage 3 PTC service Details s3i210379 agreedSP-210303approved17.1.0
33.1270133-17.0.0Rel-17Changes to align stage 2 and stage 3 PTC service Details s3i210354 revised   
33.1270132217.0.0Rel-17Correction to LI Architecture for the SGW/PGW Details s3i210381 agreedSP-210303approved17.1.0
33.1270132117.0.0Rel-17Correction to LI Architecture for the SGW/PGW Details s3i210372 revised   
33.1270132-17.0.0Rel-17Correction to LI Architecture for the SGW/PGW Details s3i210347 revised   
33.1270131116.7.0Rel-16Correction to LI Architecture for the SGW/PGW Details s3i210371 agreedSP-210302approved16.8.0
33.1270131-16.7.0Rel-16Correction to LI Architecture for the SGW/PGW Details s3i210345 revised   
33.1270130117.0.0Rel-17Addition of TWIF and TNGF as Non-3GPP Accesses Details s3i210369 agreedSP-210302approved17.1.0
33.1270130-17.0.0Rel-17Addition of TWIF and TNGF as Non-3GPP Accesses Details s3i210342 revised   
33.1270129116.7.0Rel-16Addition of TWIF and TNGF as Non-3GPP Accesses Details s3i210368 agreedSP-210302approved16.8.0
33.1270129-16.7.0Rel-16Addition of TWIF and TNGF as Non-3GPP Accesses Details s3i210341 revised   
33.1270128217.0.0Rel-17LI for SCEF services Details s3i210383 agreedSP-210303approved17.1.0
33.1270128117.0.0Rel-17LI for SCEF services Details s3i210361 revised   
33.1270128-17.0.0Rel-17LI for SCEF services Details s3i210328 revised   
33.1270127217.0.0Rel-17Li for NEF Services (NIDD included) Details s3i210382 agreedSP-210303approved17.1.0
33.1270127117.0.0Rel-17Li for NEF Services (NIDD included) Details s3i210360 revised   
33.1270127-17.0.0Rel-17Li for NEF Services (NIDD included) Details s3i210327 revised   
33.1270126116.7.0Rel-16LI state transfers in SMF sets Details s3i210358 agreedSP-210302approved16.8.0
33.1270126-16.7.0Rel-16LI state transfers in SMF sets Details s3i210325 revised   
33.1270125117.0.0Rel-17LALS Updates 127 Details s3i210309 agreedSP-210303approved17.1.0
33.1270125-17.0.0Rel-17LALS Updates 127 Details s3i210267 revised   
33.1270124-17.0.0Rel-17LI for SMS over NAS in EPS Details s3i210255 withdrawn   
33.1270123117.0.0Rel-17Port of EPC MME LI Details s3i210288 agreedSP-210303approved17.1.0
33.1270123-17.0.0Rel-17Port of EPC MME LI Details s3i210252 revised   
33.1270122317.0.0Rel-17IMS: Removing IBCF from the alternate option for non-local ID in the VPLMN Details s3i210289 agreedSP-210303approved17.1.0
33.1270122217.0.0Rel-17IMS: Removing IBCF from the alternate option for non-local ID in the VPLMN Details s3i210273 revised   
33.1270122117.0.0Rel-17IMS: Removing IBCF from the alternate option for non-local ID in the VPLMN Details s3i210266 revised   
33.1270122-17.0.0Rel-17IMS: Removing IBCF from the alternate option for non-local ID in the VPLMN Details s3i210251 revised   
33.1270121-17.0.0Rel-17LI on NIDD pour l'EPS TS 33.127 Details s3i210237 not pursued   
33.1270120117.0.0Rel-17IMS: SMS over IMS in stage 2 Details s3i210287 agreedSP-210303approved17.1.0
33.1270120-17.0.0Rel-17IMS: SMS over IMS in stage 2 Details s3i210229 revised   
33.1270119117.0.0Rel-17IMS: Addressing the interception due to the application of special media Details s3i210286 agreedSP-210303approved17.1.0
33.1270119-17.0.0Rel-17IMS: Addressing the interception due to the application of special media Details s3i210228 revised   
33.1270118117.0.0Rel-17IMS: clarifying the introductory sentence for accuracy Details s3i210285 agreedSP-210303approved17.1.0
33.1270118-17.0.0Rel-17IMS: clarifying the introductory sentence for accuracy Details s3i210226 revised   
33.1270117-17.0.0Rel-17NEF as a new PoI outside of NIDD case Details s3i210220 not pursued   
33.1270116-17.0.0Rel-17NIDD in TS 33.127 Details s3i210217 not pursued   
33.1270115-17.0.0Rel-17UDM: Stage 2 and stage 3 are not aligned Details s3i210214 agreedSP-210302approved17.1.0
33.1270114-16.7.0Rel-16UDM: Stage 2 and stage 3 are not aligned Details s3i210213 agreedSP-210302approved16.8.0
33.1270113-17.0.0Rel-17LALS: Correcting the diagrams Details s3i210210 agreedSP-210303approved17.1.0
33.1270112116.6.0Rel-16IMS LI: Separate LI_X1 to CC-TF and IRI-POI when in the same NF Details s3i210126 agreedSP-210031approved16.7.0
33.1270112-16.6.0Rel-16IMS LI: Separate LI_X1 to CC-TF and IRI-POI when in the same NF Details s3i210117 revised   
33.1270111116.6.0Rel-16IMS LI: Independent default/alternate option for non-local ID targets Details s3i210125 agreedSP-210031approved16.7.0
33.1270111-16.6.0Rel-16IMS LI: Independent default/alternate option for non-local ID targets Details s3i210116 revised   
33.1270110116.6.0Rel-16IMS LI: Alternate option has potentially missing IRI-POI for certain scenarios Details s3i210124 agreedSP-210031approved16.7.0
33.1270110-16.6.0Rel-16IMS LI: Alternate option has potentially missing IRI-POI for certain scenarios Details s3i210115 revised   
33.1270109116.6.0Rel-17Port of EPC MME Target Identifiers Details s3i210123 agreedSP-210032approved17.0.0
33.1270109-16.6.0Rel-17Port of EPC MME Target Identifiers Details s3i210110 revised   
33.1270108-16.6.0Rel-16NIDD in TS 33.127 Details s3i210107 withdrawn   
33.1270107116.6.0Rel-17Clarification on ID Mapping Location Delivery Details s3i210122 agreedSP-210032approved17.0.0
33.1270107-16.6.0Rel-17Clarification on ID Mapping Location Delivery Details s3i210106 revised   
33.1270106-16.6.0Rel-16Removing location information request event reporting from UDM Details s3i210046 not pursued   
33.1270105-16.6.0Rel-16Fixing the error related to IMS session legs in the VPLMN with HR archtiecture Details s3i210032 withdrawn   
33.1270104-16.6.0Rel-16External storage of LI state information for AMFs during state transfer Details s3i210010 not pursued   
33.1270103-16.6.0Rel-16External storage of LI state information in NF sets Details s3i210009 not pursued   
33.1270102216.6.0Rel-16GUTI allocation procedure reporting correction Details s3i210053 agreedSP-210031approved16.7.0
33.1270102116.6.0Rel-16GUTI allocation procedure reporting correction Details s3i210048 revised   
33.1270102-16.6.0Rel-16GUTI allocation procedure reporting correction Details s3i210005 revised   
33.1270101-16.5.0Rel-16Update Serving System for 5G service identifiers (Stage 2) Details s3i200724 not pursued   
33.1270100-16.5.0Rel-16Changes to the architecture diagrams in the LALS clause Details s3i200718 agreedSP-200940approved16.6.0
33.1270099-16.5.0Rel-16Changes to the architecture in the EPC clause Details s3i200716 agreedSP-200940approved16.6.0
33.1270098116.5.0Rel-16Corrections to the architecture for SMF/UPF Details s3i200740 agreedSP-200940approved16.6.0
33.1270098-16.5.0Rel-16Corrections to the architecture for SMF/UPF Details s3i200715 revised   
33.1270097316.5.0Rel-16Identifier Association Details s3i200742 agreedSP-200940approved16.6.0
33.1270097216.5.0Rel-16Identifier Association Details s3i200725 revised   
33.1270097116.5.0Rel-16Identifier Association Details s3i200717 revised   
33.1270097-16.5.0Rel-16Identifier Association Details s3i200704 revised   
33.1270096116.5.0Rel-16Enhancement for Subscriber Record Change Details s3i200632 agreedSP-200940approved16.6.0
33.1270096-16.5.0Rel-16Enhancement for Subscriber Record Change Details s3i200622 revised   
33.1270095116.5.0Rel-16Corrections to specify non-local ID as a target type rather than as target identifier Details s3i200630 agreedSP-200940approved16.6.0
33.1270095-16.5.0Rel-16Corrections to specify non-local ID as a target type rather than as target identifier Details s3i200606 revised   
33.1270094116.5.0Rel-16ADMF LI Function Targeting Details s3i200629 agreedSP-200940approved16.6.0
33.1270094-16.5.0Rel-16ADMF LI Function Targeting Details s3i200605 revised   
33.1270093216.5.0Rel-16Identifier Association Details s3i200628 withdrawn   
33.1270093116.5.0Rel-16Identifier Association Details s3i200624 revised   
33.1270093-16.5.0Rel-16Identifier Association Details s3i200603 revised   
33.1270092-16.5.0Rel-16Missing functional requirements on logging at ADMF Details s3i200482 agreedSP-200940approved16.6.0
33.1270091116.4.0Rel-16Clarification of LMF and GMLC Event Reporting at the AMF Details s3i200476 agreedSP-200807approved16.5.0
33.1270091-16.4.0Rel-16Clarification of LMF and GMLC Event Reporting at the AMF Details s3i200468 revised   
33.1270090116.4.0Rel-16MA PDU LI at the AMF Details s3i200475 agreedSP-200807approved16.5.0
33.1270090-16.4.0Rel-16MA PDU LI at the AMF Details s3i200464 revised   
33.1270089116.4.0Rel-16Addition of DNAI to Single Access PDU Reporting Details s3i200474 agreedSP-200807approved16.5.0
33.1270089-16.4.0Rel-16Addition of DNAI to Single Access PDU Reporting Details s3i200463 revised   
33.1270088116.4.0Rel-16MA-PDU LI at the SMF Details s3i200473 agreedSP-200807approved16.5.0
33.1270088-16.4.0Rel-16MA-PDU LI at the SMF Details s3i200462 revised   
33.1270087-16.4.0Rel-16Measurement Report collection Details s3i200461 not pursued   
33.1270086116.4.0Rel-16One PDU session connects to only one DN Details s3i200449 agreedSP-200807approved16.5.0
33.1270086-16.4.0Rel-16One PDU session connects to only one DN Details s3i200439 revised   
33.1270085-16.4.0Rel-16MA-PDU LI requirements at the AMF Details s3i200438 not pursued   
33.1270084-16.4.0Rel-16MA-PDU LI at the SMF Details s3i200437 not pursued   
33.1270083-16.4.0Rel-16MA-PDU LI at the SMF Details s3i200412 not pursued   
33.1270082-16.4.0Rel-16MA-PDU LI requirements at the AMF Details s3i200411 not pursued   
33.1270081-16.4.0Rel-1633.127 Update to Suspend/Resume Functionality with a Roaming Toggle Details s3i200338 not pursued   
33.1270080-16.4.0Rel-1633.127 SMS Clause Relocation Details s3i200335 not pursued   
33.1270079116.4.0Rel-16Clarification on the LI architecture Details s3i200345 agreedSP-200807approved16.5.0
33.1270079-16.4.0Rel-16Clarification on the LI architecture Details s3i200315 revised   
33.1270078116.4.0Rel-16Porting of HSS LI stage 2 from TS 33.107 to TS 33.127 Details s3i200344 agreedSP-200807approved16.5.0
33.1270078-16.4.0Rel-16Porting of HSS LI stage 2 from TS 33.107 to TS 33.127 Details s3i200314 revised   
33.1270077-16.4.0Rel-16Corrections to specify non-local ID as a target type rather than target identifier Details s3i200313 not pursued   
33.1270076-16.4.0Rel-16Correction on LI_X3_LITE_M interface Details s3i200309 agreedSP-200807approved16.5.0
33.1270075-16.3.0Rel-16Porting of HSS LI stage 2 from TS 33.107 to TS 33.127 Details s3i200225 not pursued   
33.1270074-16.3.0Rel-16Clarification to the IMS clause for the legacy CC-POI functions Details s3i200215 agreedSP-200407approved16.4.0
33.1270073-16.3.0Rel-16Fixing the incorrect internal references Details s3i200214 agreedSP-200407approved16.4.0
33.1270072216.3.0Rel-16Virtualisation Details Details s3i200233 agreedSP-200407approved16.4.0
33.1270072116.3.0Rel-16Virtualisation Details Details s3i200206 revisedSP-200407approved16.4.0
33.1270072-16.3.0Rel-16Virtualisation Details Details s3i200202 revised   
33.1270071-16.3.0Rel-16Automated Suspend and Resume Details s3i200155 withdrawn   
33.1270070116.3.0Rel-16Clarifications on the NFs that provide POI/TF functions for conferencing Details s3i200179 agreedSP-200407approved16.4.0
33.1270070-16.3.0Rel-16Clarifications on the NFs that provide POI/TF functions for conferencing Details s3i200135 revised   
33.1270069-16.3.0Rel-16Fixing the typos Details s3i200134 agreedSP-200407approved16.4.0
33.1270068-16.3.0Rel-16Clarification to the requirements on start of interception on an established IMS session Details s3i200116 withdrawn