SSH EN 301 484-2 V1.1.1:2000

Integrated Services Digital Network (ISDN); Line Hunting (LH) supplementary service; Digital Subscriber Signalling System No. one (DSS1); Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

Scope

This second part of DEN/SPAN-05171 is applicable to the stage three of the Line Hunting (LH) supplementary service
for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications
operators at the T reference point or coincident S and T reference point (as defined in ITU-T
Recommendation I.411 [6]) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol. Stage three
identifies the protocol procedures and switching functions needed to support a telecommunication service (see CCITT
Recommendation I.130 [5]).
The present document provides the Protocol Implementation Conformance Statement (PICS) proforma for the ISDN
DSS1 supplementary service interactions protocol as specified in EN 301 484-1 [2] in compliance with the relevant
requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [4].
The supplier of a protocol implementation which is claimed to conform to EN 301 484-1 [2] 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.