ETSI EN 302 091-2

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No.Two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No.7 (SS7); Prenegotiation; Part 2: Protocol Implementation Conformance Statement (PICS) Proforma Specification