I am using customllm in the vapi assistant. How can I call the defaults like transfercall tool with warm transfer in side the custom llm?

Hi there! 👋 I can definitely help you with calling default tools like

transferCall

from your custom LLM in Vapi, including implementing warm transfers! Here's how you can do this: ### 1. Add the Default Tools to Your Model's Tools Array First, you need to add the

transferCall

tool to your model's

tools

array in your configuration:

json
{
  "model": {
    "provider": "openai",
    "model": "gpt-3.5-turbo",
    "messages": [
      {
        "role": "system",
        "content": "You are an assistant. When the user asks to be transferred, use the transferCall function."
      }
    ],
    "tools": [
      {
        "type": "transferCall",
        "destinations": [
          {
            "type": "number",
            "number": "+1234567890"
          }
        ]
      }
    ]
  }
}

### 2. Handle the Tool Call in Your Custom LLM When your custom LLM detects the need for a call transfer, you need to send a function call payload back to Vapi. Here's how to handle it:

javascript
if (functionName === "transferCall" && payload.destination) {
  const functionCallPayload = {
    function_call: {
      name: "transferCall",
      arguments: {
        destination: payload.destination,
      },
    },
  };
  res.write(`data: ${JSON.stringify(functionCallPayload)}\n\n`);
  // Skip further processing for this chunk
  continue;
}

### 3. Implementing Warm Transfer To implement a warm transfer (which provides context to the recipient), you need to add a

transferPlan

object to your configuration. Here's an example for a warm transfer with a message: ```json { "type": "transferCall", "destinations": [ { "type": "number", "number": "+1234567890", "transferPlan": { "mode": "warm-transfer-with-message", "message": "Hi, we have customer {{firstName}} calling about {{issueType}}. Can you assist them?" } } ], "function": { "name": "transferCall",

Okay this is my understanding, I can create a transferCall tool with transferCallPlan to define the warm transfer, but how can I call this default tool - transferCall tool from my customLLM?