Hi! I have a Livekit telephony agent that enters w...
# agentsf
future-glass-56154
12/11/2025, 5:31 PMHi! I have a Livekit telephony agent that enters with "Hi you have reached [_]. How can I help you today?". In production calls we've noticed that the agent always stutters when entering -- specifically when saying "Hi". This doesn't happen when testing the agent locally. Our TTS provider is Rime and our Langfuse logs don't show anything out of the ordinary with TTS requests. We have other agents that start with "Thanks" and we haven't noticed any issues with them.
I'm curious as to why this issue only appears in production calls and why we're unable to replicate this in local development.
For reference this is what the stutter sounds like.
r
refined-appointment-81829
12/11/2025, 5:42 PMWhat is your production setup?
refined-appointment-81829
12/11/2025, 5:44 PMGood to know about the LangFuse observabilitly. Do you see anything if you use LiveKit insights (observability)?
f
future-glass-56154
12/11/2025, 7:27 PMWe're using Livekit Cloud. We have an inbound SIP trunk configured with Twilio. We do have "Media encryption required" in our trunk settings.
We haven't set up Livekit insights.
r
refined-appointment-81829
12/12/2025, 2:39 PMIs it possible you have enabled noise cancelation on the trunk and in the agent? You should use one or the other, so in just the agent in this case.