WHAT THIS IS
Voice AI is a three-stage pipeline: Speech-to-Text (STT) converts the caller's audio into text, a Large Language Model processes the text and determines intent and action, and Text-to-Speech (TTS) converts the response back into natural-sounding audio. The entire round trip needs to complete in under 500 milliseconds to feel conversational.
How Voice AI Works
Modern voice AI goes beyond IVR phone trees. Instead of "press 1 for sales," a voice agent understands freeform speech, extracts intent, and takes action. A caller says "I need to reschedule my appointment for next Tuesday afternoon," and the agent checks availability, proposes a time, confirms, and updates the calendar. No menus, no hold music, no transfers.
The latency budget is tight. Human conversation has natural turn-taking pauses of about 200-300ms. If the agent takes longer than 500ms to start responding, the caller notices. The budget breaks down roughly as: STT 50-150ms, LLM 200-500ms (time to first token), TTS 50-150ms, and network overhead 20-50ms. Streaming is essential at every stage.
How We Deliver Voice AI
We build voice agents as stateful pipelines: audio in, text transcript, LLM reasoning, tool execution, text response, audio out. Each stage is independently optimizable. The STT engine processes audio as a stream, emitting partial transcripts as the caller speaks. The LLM begins generating before the caller finishes. The TTS engine starts producing audio from the first tokens of the response.
For telephony integration, we connect voice agents to existing phone systems through SIP trunking or VoIP providers. The agent handles the full call lifecycle: greeting, intent detection, information gathering, action execution, confirmation, and handoff to a human when the conversation exceeds the agent's scope.
Voice AI Capabilities
- Inbound call handling: Receptionist agents that answer, route, and resolve calls without human intervention.
- Outbound campaigns: Agents that make scheduled calls for appointment confirmations, follow-ups, and notifications.
- Real-time action execution: While on the call, the agent books appointments, looks up records, processes payments, and sends confirmations.
- Escalation routing: When a conversation exceeds the agent's scope, it transfers to the right human with full context of the conversation so far.
What the Client Gets
A deployed voice agent connected to your phone system. The agent handles defined call types autonomously, with configurable escalation rules. You get call transcripts, intent analytics, action logs, and a dashboard showing call volume, resolution rate, and average handle time. The voice and personality of the agent are configurable to match your brand.
See Voice AI in Action
The Voice AI demo plays pre-recorded calls through the full pipeline with audio playback, waveform visualization, and live transcript at each stage.