ETSI EN 300 009-2
ETSI EN 300 009-2
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 2: Protocol Implementation Conformance Statement (PICS) proforma specification
standard published 03/01/2000 by European Telecommunications Standards Institute