INTERWORKING OF MISSION CRITICAL SERVICES WITH PUBLIC NETWORKS

摘要

There are provided measures for interworking of mission critical services with public networks. Such measures exemplarily comprise, at a service entity of a first communication service system which is a mission critical system, receiving a call request indicative of that a call corresponding to said call request involves a second communication service system which is a non-mission critical system, and determining whether an origin of said call request is authorized to initiate calls involving said second communication service system.