scope:

The present document specifies the Test Suite Structure (TSS) and Test Purposes (TPs) for the Network Layer, Circuit Mode Basic Services of the Inter-exchange signalling protocol for Private Integrated Services Networks (PISN).

The objective of this TSS and TPs specification is to provide conformance tests which give a high probability of inter-operability of the Network Layer. The TSS and TPs specification covers the procedures described in EN 300 172 [2]. In addition this TSS&TP specification covers those parts of EN 301 048 [1] which relate to the use of the transit counter in connection with Basic Call procedures.

NOTE 1: The parts of EN 301 048 [1] included are those which are equivalent to ETS 300 172 [3] annex ZB.

NOTE 2: Some or all of the TPs in the present document can be used for testing equipment implemented according to other PSS1 specifications.

The ISO standard for the methodology of conformance testing (ISO/IEC 9646-1 [7] and ISO/IEC 9646-2 [8]) is used as basis for the test methodology.

The present document is applicable to the support of Basic Call, at the Q-reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a PISN. The Q reference point is defined in ETS 300 475-1 [5].