This quick card explains how to use the T‑BERD/MTS‑5800 to test Ethernet VoIP SIP trunks by validating Session Border Controller configuration and trunk performance at the network edge. Technicians gather necessary details such as physical interface type, LAN speed and negotiation settings, VLAN ID, IP addressing for both the SBC and tester or PBX, and whether SIP registration is required. Credentials may also be needed for authenticated trunks. Using this information, the tester simulates SIP call flows to verify provisioning, assess voice quality, and ensure reliable VoIP service delivery over Ethernet.

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