Advice of Charge: Charging Information at Call Set-Up Time (AOC-S) - Integrated Services Digital Network (ISDN) - Service Capabilities - Supplementary Services in ISDN (Study Group I) 12 pp
国外标准现行
标准号:ITU-T I.256.2A-1993
标准名称: 收费补充业务:收费通知:在呼叫建立时的计费信息(AOC-S)
英文名称:Advice of Charge: Charging Information at Call Set-Up Time (AOC-S) - Integrated Services Digital Network (ISDN) - Service Capabilities - Supplementary Services in ISDN (Study Group I) 12 pp