ETSI ETS 300 009-3 English Printed Edition English PDF Integrated Services Digital Network (ISDN); Signalling System No.7; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 3: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing

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