短語詞組短語Service Switching Function SSF 業(yè)務(wù)交換功能Service Engineering Function 服務(wù)工程部門Service Provisioning Function 業(yè)務(wù)授權(quán)功能模塊SSF Service Switching Function 業(yè)務(wù)交換功能service discovery function 服務(wù)發(fā)現(xiàn)功能Service Serving Function Entity 業(yè)務(wù)服務(wù)功能實(shí)躰SSF Service Switchellong Function 營業(yè)交換功傚service resource function 業(yè)務(wù)資源功能SCF Service Control Function 業(yè)務(wù)控制功能 返回 service function