DispatchAnswer

AI Voice Receptionist for HVAC Companies

An AI voice agent that answers inbound calls, books jobs, and sends confirmations — so contractors never lose revenue to a missed call.

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The Problem

HVAC contractors miss a large share of inbound calls — after hours, on a job, or simply busy. Each missed call is lost revenue, and most callers don't leave a voicemail; they call the next company. DispatchAnswer answers every call with an AI voice agent that sounds natural, captures the job, and books it.

What It Does

• 24/7 AI call answering — natural-sounding voice agent handles inbound calls
• Job booking + calendar sync — schedules appointments directly into the contractor's calendar
• SMS confirmations — texts the customer a confirmation after booking
• Call transcription ingestion — every call transcribed and stored for review
• CRM + lead scoring — captures caller details and scores leads for follow-up
• Deployment automation — streamlined setup per new contractor

Architecture

   Inbound call
        |
        v
  +--------------+      +------------------+
  | Voice LLM    | ---> | API orchestration|
  | (Retell/Vapi)|      |  layer           |
  +--------------+      +------------------+
        |                   |        |
        v                   v        v
   Transcription        Calendar    SMS
   ingestion            sync        confirmations
        |                   |
        v                   v
   +-------------------------------+
   |  CRM + lead-scoring pipeline  |
   +-------------------------------+
                |
                v
            Database

Tech Stack

Layer	Technology
Voice agents	Retell AI / Vapi
Language models	LLMs for conversation + intent
Orchestration	API integration layer (Node.js)
Messaging	SMS provider integration
Scheduling	Calendar API sync
Data	CRM + lead-scoring pipeline, database schema

Getting Started

git clone https://github.com/louisfasano/dispatchanswer.git
cd dispatchanswer
npm install

# configure your keys
cp .env.example .env
# fill in .env with your provider credentials

npm run dev

Configuration

Copy .env.example to .env and provide your own credentials. Never commit .env. See .env.example for the full list of required variables (voice provider keys, SMS, calendar, and database connection).

License

MIT — see LICENSE. (Switch to "All rights reserved" if you'd rather show the code without granting reuse.)

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Founded & built by Louis Fasano