Hi team, I’m currently experiencing an issue with LiveKit Agents receiving SIP audio. We’re using LiveKit Agent Worker (Fargate) connected through LiveKit SIP Trunk, and outbound calls are established successfully. However, the Agent is not receiving audio frames from the SIP call (or receives them very intermittently). As a result, the STT module is not getting any audio input. Here’s what we’ve checked so far: 1. The SIP call connects normally and RTP negotiation completes. 2. No errors on the Agent side — the worker starts and stays connected. 3. LiveKit server logs don’t show obvious failures. 4. Other Agent features (LLM, tools, etc.) work fine. Questions: • Is there any known issue on the LiveKit Server or SIP Gateway side that might affect RTP → audio track forwarding? • Are there any recent changes in the SIP pipeline that could affect audio delivery to Agents? • Any recommended logs/metrics we should inspect to further debug this? If helpful, I can share server logs, agent logs, and SIP INVITE/SDP details. Thanks in advance!

There are no issues for audio forwarding. The issue you are talking about is generally a problem with the SIP provider configuration or a firewall issue that is blocking the RTP setup or packets.