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ÖNORM EN 301144-6 V 1.1.1:2001-03

Действует
Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7 (SS7) protocols - Signalling application for the mobility management service on the alpha interface - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (incl. Diskette!!!)
ICS
33.080 Integrated Services Digital Network (ISDN) / Цифровая сеть связи с интеграцией служб (ISDN)