Summary

Recommendation ITU-T J.366.5 specifies:

1)�������� The interactions between the HSS (home subscriber server) and the CSCF (call session control functions), referred to as the Cx interface.

2)�������� The interactions between the CSCF and the SLF (server locator function), referred to as the Dx interface.

The Third Generation Partnership Project (3GPP) has developed the specification in a form optimized for the wireless environment. This Recommendation references the ETSI version of the 3GPP specification and specifies only the modifications necessary to optimize it for the cable environment.