标准号:ETS EN 301 001-4-1999
英文标准名称:Integrated Services Digital Network (ISDN); Outgoing Call Barring (OCB) Supplementary Services; Digital Subscriber Signalling System No. One (DSS1) Protocol; Part 4: Abstract Test Suite (ATS) and Partial Protocol Implementation eXtra Information for Tes
标准状态:W
标准类型:国际标准