Summary

The purpose of Recommendation ITU-T Q.3941.4 is to provide the abstract test suite and partial protocol implementation extra information for testing proforma for network integration testing (NIT) to verify the overall compatibility of SIP networks based on session initiation protocol (SIP) and session description protocol (SDP) as specified in TS 124 229 in compliance with the relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646‑7 and ETS 300 406.