PRETS 300 092-6:1997被替代
Integrated Services Digital Network (isdn) - Calling Line Identification Presentation (clip) - Supplementary Service - Digital Subscriber Signalling System No. One (dss1) Protocol - Abstract Test Suite (ats) And Partial Protocol Implementation Extra Information For Testing (pixit) Prpforma Specification For The Network
出版：European Telecommunications Standards Institute
专家解读视频
