Cx and Dx Interfaces in IMS
Learn about 3GPP TS 29.229 Cx and Dx interfaces based on the
Diameter protocol. Tonex offers multiple Diameter Training Courses globally for engineers and non-engineers.
The Cx interface between the I-CSCF/S-CSCF and the HSS.
The Dx interface between the I-CSCF/S-CSCF and the SLF.
The Diameter Base Protocol as specified in IETF RFC 3588 defines
Diameter commands and AVPs, result and event codes .
Diameter application for Cx interface specifies a Diameter
application that allows a Diameter Multimedia server and a Diameter Multimedia
client:
- to exchange location information
- to authorize a user to access the IMS
- to exchange authentication information
- to download and handle changes in the user data stored in the server
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