ETSI EN 302 094-4 English Printed Edition English PDF Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7 (SS7) protocols; Call Forwarding on Not Reachable (CFNRc) supplementary service for Cordless Terminal Mobility (CTM) phase 1; Part 4: Abstract Test Suite (ATS) and partial Proto

standard published 02/01/2002 by European Telecommunications Standards Institute