i am testing my phone agent. i made one call after...
# agentsa
astonishing-accountant-25155
12/24/2025, 9:15 PMi am testing my phone agent. i made one call after another and now i see "Concurrent STT is 20", going to exceed my plan limit. Since i made calls one after another, why the concurrent STT became 20? Does only inference STT count into concurrent STT? STT solution in plugins doesn't count, right? I created STT plugin with Qwen APIs.
đź‘€ 1
r
refined-appointment-81829
12/24/2025, 10:04 PMWhat agent library are you using and what version?
f
freezing-france-64950
12/24/2025, 10:32 PMCc: @astonishing-accountant-25155
Hey Franklin, Thanks for posting in Livekit community. “Concurrent STT” is about how many STT streams/connections are open at the same time (usually WebSockets), not how many calls you made total...
freezing-france-64950
12/24/2025, 10:33 PMWith phone agents, each call typically opens an STT stream and keeps it open for the whole AgentSession. If previous sessions aren’t fully closing (or take a bit to close), the concurrency can climb even if you dial “one after another”.
freezing-france-64950
12/24/2025, 10:34 PMAlso: if your code is still using LiveKit Inference for STT (e.g., inference.STT(...) or an STT model string), that does count toward the “Concurrent STT” limit. A custom plugin that calls Qwenn directly shouldn’t count against LiveKit Inference STT, but it only works if you’re actually passing that plugin into AgentSession as stt=...
2 Views