Integrated Services Digital Network (ISDN); Advice of Charge (AOC) supplementary service; functional capabilities and information flows; English version ETS 300181:1993
国外标准现行
标准号:DIN ETS 300181-1994
标准名称: 综合服务数字网络(ISDN).收费通知附加服务.功能能力和信息流量
英文名称:Integrated Services Digital Network (ISDN); Advice of Charge (AOC) supplementary service; functional capabilities and information flows; English version ETS 300181:1993