Inbound Voice Receptionists

Voice agents that answer incoming calls on behalf of a business — greet the caller, look them up in a CRM, gather intent, book or modify appointments, answer policy questions from a knowledge base, and escalate to humans or specialised agents when needed.

Key points

Reference build: Vapi front end + n8n MCP server exposing seven deterministic workflows (client lookup, new client CRM, check availability, book event, update appointment, lookup appointment, delete appointment)
Typical flow: email lookup to create or match CRM record, gather intent, appointment management or Q&A, log call
Knowledge base for general questions is implemented by uploading a PDF to Vapi Files and pointing the system prompt at the ‘default query tool’
Can escalate via handoff to an internal specialised Vapi assistant (e.g. customer support) or transfer to an external human phone number
End-of-call server webhook writes a summary and structured data fields (outcome, etc.) to an n8n call-logger workflow

Related entities

Vapi

Related concepts

Source references

^[src-007] Nate Herk cluster — Nate Herk — Voice AI agents cluster (4 videos)

– Videos referenced: y-cq_Qo4zVo

Robin Cartier perspective

This page is part of Robin Cartier's working AI knowledge graph: a practical research layer for production AI, recommendation systems, experimentation, GEO, and agentic web readiness.

The useful next step is to connect this concept back to applied product leadership and operating models.

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