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ETSI TS 129 238
M00001825
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ETSI TS 129 238 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Interconnection Border Control Functions (IBCF) - Transition Gateway (TrGW) interface, Ix interface; Stage 3 (3GPP TS 29.238 version 13.2.0 Release 13)
standard by European Telecommunications Standards Institute, 08/01/2016
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ETSI TS 129 238 describes the protocol to be used on the Interconnection Border Control Function (IBCF) -Transition Gateway (TrGW) interface and the CS-IBCF - CS-TrGW interface. The basis for this protocol is the H.248protocol as specified in ITU-T. The Profile provides MG control function for IMS and CS Border Control. The IMSarchitecture is described in 3GPP TS 23.228 [2]. The underlying reference model and stage 2 information is describedin Annex I of 3GPP TS 23.228 [2] and in 3GPP TS 29.162 [18]. The CS architecture is described in Annex A of 3GPPTS 29.235 [17].This specification describes the application of H.248 Ix profile for both Ix and CS-Ix interfaces (see Figure 1.1 andFigure 1.2). Required extensions use the H.248 standard extension mechanism. In addition certain aspects of the baseprotocol H.248 are not needed for this interface and thus excluded by this profile.