Summary

Interface Rw defines an interface between a policy decision physical entity (PD-PE) and a policy enforcement physical entity (PE-PE). There are a number of signalling alternatives for Rw, each is defined in a protocol-specific Recommendation in the Q.3303.x-series of Recommendations.

ITU-T Recommendation Q.3303.0 provides a protocol-independent introduction, describing the common material, which is relevant for all protocol specific signalling solutions.