I want to understand if a call transfer can be used to transfer to a real phone number for a human to answer the call

Yes, Vapi does support transferring calls to real phone numbers for human answering! 📞 Based on the documentation I found, Vapi provides a

transferCall

feature that allows you to forward calls to specified phone numbers. This supports both: 1. Blind transfers - directly transfers the call without informing the recipient 2. Warm transfers - transfers the call after providing context, using a summary or specific message To set up call transfers, you would: 1. Create a custom transfer tool with the

transferCall

function 2. Configure the destination phone numbers 3. Set up appropriate messaging for the caller during the transfer Here's an example of how the

transferCall

function might be configured:

json
{
  "function": {
    "name": "transferCall",
    "parameters": {
      "destination": "+1234567890"
    }
  },
  "messages": [
    {
      "type": "request-start",
      "content": "I am forwarding your call. Please stay on the line."
    }
  ]
}

While the documentation I found shows implementation through assistants, the core functionality of transferring to real phone numbers is supported. The transfer process typically uses SIP (Session Initiation Protocol) to route calls to the specified destinations. Is there a specific use case you're trying to implement with these transfers? Sources: - [Call Forwarding Documentation](https://docs.vapi.ai/call-forwarding) - [Dynamic Call Transfers](https://docs.vapi.ai/phone-calling/dynamic-call-transfers)

@Raju yes absolutely. You can set the transfer destination to any number