The present document specifies the interactions between the HSS (Home Subscriber Server) and the CSCFs (Call Session Control Function), referred to as the Cx interface.
This document addresses the signalling flows for the Cx interface.
TIA TIA-873.005-A
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All-IP Core Network Multimedia Domain: IP Multimedia Subsystem Cx Interface Signaling flows and Message Contents
Telecommunications Industry Association , 06/01/2009
Pages: 68
