Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: DIN EN 302091-4
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) - Digital Subscriber Signalling System No - two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG) and Signalling System No - 7 (SS7); Prenegotiation - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 302091-4 V 1 - 1 - 1 (2000-09) as German standard)