### Answer To retrieve the caller's phone number for an inbound call, you need to set up an inbound webhook on your Retell phone number. [(1) ]() When an inbound call comes in, Retell will POST a payload to your webhook endpoint that includes the

from_number

field, which contains the caller's phone number. Here's the payload structure you'll receive:

json
{
  "event": "call_inbound",
  "call_inbound": {
    "agent_id": "agent_12345",
    "agent_version": 1,
    "from_number": "+12137771234",
    "to_number": "+12137771235"
  }
}

To set this up: 1. Configure your n8n workflow to receive webhooks [(2) ]() 2. Set the

inbound_webhook_url

on your Retell phone number to point to your n8n webhook URL [(3) ]() 3. In n8n, parse the incoming payload and extract the

from_number

field You can also respond from your webhook with

dynamic_variables

to pass the caller's number to your agent for use during the conversation. [(1) ]()

​ To learn more, see the sources I considered: [[1] Inbound webhook](https://docs.retellai.com/features/inbound-call-webhook) [[2] Connect AI call agent to n8n](https://www.retellai.com/integrations/n8n) [[3] Update Phone Number](https://docs.retellai.com/api-references/update-phone-number) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.