ETSI EN 301 144-6 English Printed Edition English PDF 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 I

standard published 12/01/2000 by European Telecommunications Standards Institute