retell-vide-demo

This is a sample demo repo to show how to have your own LLM plugged into Retell.

Steps to run in localhost

1. First install dependencies

pip3 install -r requirements.txt

2. Fill out the API keys in .env

3. In another bash, use ngrok to expose this port to public network

ngrok http 8080

Note: If you have your server hosted just change NGROK_IP_ADDRESS for your domain ip address. For example https://yourdomain.com

4. Start the websocket server

python -m uvicorn server:app --reload --port=8080

You should see a fowarding address like https://dc14-2601-645-c57f-8670-9986-5662-2c9a-adbd.ngrok-free.app, and you put on .env

Structure for outbound call Api

to_number - This is a text field where always has to be with the country code. Ex: +351 16516546815 custom_variables - this is an object

Examples:

{
  "to_number":  "+3516969694",
  "custom_variables":
   {
    "name": "pepe"
   }
}

And then in your Retell Prompt you should add {{name}}

Webhook

You can use Make (Formelly Integromat), Zapier or anthoer webhook that you have.

Configure de env variable called "MAKE_WEBHOOK_URL".

Call Status

You can access the twilio call status by using the /call-status which receives call_sid in the body

{
  "call_sid": "iaosndoainwdoi"
}

Which is going to return an object with:

{
  "sid": "asdasdasdasdsad",
  "duration": "4",
  "status": "completed",
  "direction": "outbound-api",
  "from": "+444444444",
  "to": "+444444444",
  "start_time": "2024-06-12T12:13:20+00:00",
  "end_time": "2024-06-12T12:13:24+00:00"
}

Tutorial

Video