The present document provides the Protocol Implementation Conformance Statement (PICS) proforma for the
Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No. two (DSS2)
protocol user-network interface layer 3 specification for basic call control defined in EN 300 443-1 [1] in compliance
with the relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [3].
The supplier of a protocol implementation that is claimed to conform to EN 300 443-1 [1] is required to complete a
copy of the PICS proforma provided in annex A of the present document and is required to provide the information
necessary to identify both the supplier and the implementation.