IFA IN Standards TELECOM SWITCHING SYSTEMS DIVISION Following a PRM call Call Control Call Control Function Function Service Management Service Management Access Function Access Function Service Service Control Control Function Function Service Service Data Data Function Function Specialized Specialized Ressource Ressource Function Function Service Service Switching Switching Function Function Call Control Call Control Function Function Call Control Call Control Access Function Access Function Call Control Call Control Access Function Access Function Call Control Call Control Function Function Call Control Call Control Function Function Service Creation Service Creation Environment Function Environment Function Call Control Call Control Function Function Service Service Management Management Function Function Setup IAM IAM
