scope:

The present recommendation is part 2 of a multi-part deliverable covering Network Integration Testing between SIP and ISDN/PSTN network signalling protocols:

Part 1: "Test Suite Structure and Test Purposes (TSS&TP) for SIP-ISDN";

Part 2: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification" for SIP-ISDN;

Part 3: "Test Suite Structure and Test Purposes (TSS&TP) for SIP-SIP".

Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification" for SIP-SIP".

The present recommendation specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma based on the Test Suite Structure and Test Purposes defined in Q.3941-1.

The TSS&TP have been developed Network Integration Testing between SIP and ISDN/PSTN network signalling protocols. The ATS is sometimes referred to in the present document as "SIPISDN- Interworking ATS".

The test notation used in the ATS is TTCN-3.

The following test specification- and design considerations can be found in the body of the present document:

• the overall test suite structure;

• the testing architecture;

• the test methods and port definitions;

• the test configurations;

• the design principles, assumptions, and used interfaces to the TTCN3 tester (System Simulator);

• TTCN styles and conventions;

• the partial PIXIT proforma;

• the modules containing the TTCN-3 ATS.

Annex A provides the Partial Implementation Extra Information for Testing (IXIT) Proforma of the ATS.

Annex B provides the Testing and Test Control Notation (TTCN-3) part of the ATS.