ETSI EN 301 143 English Printed Edition English PDF Intelligent Network (IN); Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2); Cordless Terminal Mobility (CTM); Stage 3 specifications for Service Control Function (SCF); SCF and Call Unrelated Service Function (CUSF)/Service Switching Function (SSF);

standard published 09/01/1999 by European Telecommunications Standards Institute