UNE-EN 301815-2V1.1.1

Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Quality of Service class and parameters indication at call/connection establishment;Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification [ITU-T Recommendations Q.2965.1B (2000) and Q.2965.2B (2000), modified] (Endorsed by Asociación Espanola de Normalización in December of 2021.)