To be jointed by the PUCI application server and the PUCI application server containment the defense null operator

摘要

A PUCI system includes a user equipment (UE) and a PUCI application server holding user policies in connection to a home subscriber server (HSS) holding operator policies. A policy manager establishes the correlation between the user policies and the operator policies, thus determining whether to reject or forward an incoming call originated from a trusted/distrusted source network in accordance with prescribed rules/logics.