The present document specifies the Test Suite Structure and Test Purposes (TSS&TP) for the Network side of the
T reference point or coincident S and T reference point (as defined in ITU-T Recommendation I.411 [6]) of
implementations conforming to the stage three standard for the Line Hunting (LH) service for the pan-European
Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1)
protocol, EN 301 484-1 [1].
The present document is applicable to testing of network implementations claiming to conform to EN 301 484-1 [1].
A further part of the present document specifies the Abstract Test Suite (ATS) and partial Protocol Implementation
eXtra Information for Testing (PIXIT) proforma based on the present document. Other parts specify the TSS&TP and
the ATS and partial PIXIT proforma for the Network side of the T reference point or coincident S and T reference point
of implementations conforming to EN 301 484-1 [1].