LLM observability tools are blind to the voice layer. Here is what I checked 6 of them for.

Tracing the LLM call is the easy 20 percent. For a voice agent, the failures live in the audio layer your tracer never sees. Most LLM observability tools trace the same thing: the prompt, the completion, the tokens, the latency of the model call. For a text agent that is most of the story. For a voi