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ETSI TS 129 229
M00003398
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ETSI TS 129 229 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Cx and Dx interfaces based on the Diameter protocol; Protocol details (3GPP TS 29.229 version 12.7.0 Release 12)
standard by European Telecommunications Standards Institute, 10/01/2015
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ETSI TS 129 229 defines a transport protocol for use in the IP multimedia (IM) Core Network (CN) subsystembased on Diameter.The present document is applicable to: The Cx interface between the I-CSCF/S-CSCF and the HSS. The Dx interface between the I-CSCF/S-CSCF and the SLF.Whenever it is possible, this document specifies the requirements for this protocol by reference to specificationsproduced by the IETF within the scope of Diameter. Where this is not possible, extensions to Diameter are definedwithin this document.