UNE-EN 301067-5V1.1.3

Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Connection characteristics;Negotiation during call/connection establishment phase;Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsed by Asociación Espanola de Normalización in September of 2021.)