AI Voice Agents: The Phone Support Revolution

AI voice agents are no longer science fiction. In 2026, technology allows creating agents that hold phone conversations indistinguishable from a human, with less than 500ms latency.

How a Voice Agent Works

The pipeline of a modern voice agent:

1. STT (Speech-to-Text): Transcribes user speech to text (Deepgram Nova-3, ~100ms)
2. LLM (Large Language Model): Processes text and generates a response (Groq Llama 3.3, ~200ms)
3. TTS (Text-to-Speech): Converts response to natural speech (Hume Octave, ~100ms)

Total latency: ~400-500ms — comparable to a natural pause in conversation.

Advantages Over Traditional IVR

Use Cases

• Call reception: Answers and routes to the correct department
• Appointment booking: Books directly in the calendar
• Level 1 support: Resolves FAQs and common issues
• Collections: Automatic payment reminders
• Surveys: Post-service satisfaction surveys

AgenteUno Voice

Our voice agent uses:

• Deepgram Nova-3 for STT (fastest on the market)
• Groq for LLM (dedicated hardware inference)
• Hume Octave for TTS (high-quality native Spanish voice)
• Telnyx for telephony (local numbers in 100+ countries)

From €0.06/minute all-inclusive. No hidden costs.

Try voice agent →