EN 301 061-2 : 1.1.3

INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - GENERIC FUNCTIONAL PROTOCOL FOR THE SUPPORT OF SUPPLEMENTARY SERVICES AT THE "B" SERVICE ENTRY POINT FOR VIRTUAL PRIVATE NETWORK (VPN) APPLICATIONS - PART 2: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA SPECIFICATION

European Telecommunications Standards Institute