ETSI EN 301 068-4 English Printed Edition English PDF Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Test

standard published 10/01/2000 by European Telecommunications Standards Institute