LangChain and LangSmith trace your agent when it types. The moment it speaks on a phone call, they see tokens, not audio. Here's how to get structured signals out of a raw recording.
When your AI agent types, you can see everything it does. LangChain traces every
step, LangSmith replays every run, OpenTelemetry hangs spans off each call. You
know what the model saw, what it said, how long it took, and what it cost.
The moment that same agent picks up a phone, the lights go out.
A voice agent's entire interaction lives inside an .mp3. The transcript, the
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