Hello, VAPI team! I'm experiencing an issue with my inbound agent, which is supposed to qualify leads by asking preset questions and then transfer the call to a licensed agent using the provided DID number. However, instead of successfully forwarding the call, the bot says, "I'm transferring the call," and then hangs up. Steps Taken: 1. Initially, I used VAPI’s built-in call forwarding function, but it didn’t work. 2. I then created a transfer tool using the following code, but I’m still facing the same issue: { "id": "106622fc-c74a-4c91-aacb-d1f2b683bea8", "createdAt": "2025-02-04T17:53:21.703Z", "updatedAt": "2025-02-04T17:53:21.703Z", "type": "transferCall", "function": { "name": "transferCall", "description": "Use this function to transfer the call to the specified destination.", "parameters": { "type": "object", "properties": { "destination": { "description": "The destination to transfer the call to.", "type": "string", "enum": [ "+18889935015" ] } }, "required": [ "destination" ] } }, "messages": [ { "type": "request-start", "content": "I am forwarding your call. Please stay on the line." } ], "orgId": "72757ad2-30d6-45b2-844d-8a87c4ac0d6e", "destinations": [ { "type": "number", "number": "+18889935015", "message": "I am forwarding your call. Please stay on the line." } ] } Despite implementing this, the issue persists. I would appreciate any guidance on troubleshooting this. Recent Call IDs: [65416c8a-8b61-4125-a807-231e67a5f3e5] [7667c067-16eb-4e6f-8011-4398dfc08271] [2062da8f-c845-4f26-87cd-23414b4e900e] Thanks in advance for your support!

@Ch Adeel Hello! I'm sorry to hear about the trouble you're experiencing with the call transfer feature. Let's try to resolve this issue together. Based on the steps you've taken and the information provided, it seems like there might be an issue with the call transfer execution. Since you've already attempted to use the built-in call forwarding function and created a custom transfer tool without success, we should check a few things: 1. Verify that the destination number "+18889935015" is correct and can receive incoming calls. 2. Ensure that your Vici system is configured to handle SIP REFER messages if you're using SIP transfer, as this is a common requirement for call transfers. 3. Review the logs for the recent call IDs you provided to look for any error messages that could indicate why the transfer is failing. If you have access to the logs, please check them for any errors related to the call transfer. If you find any error messages or if you're unsure how to proceed, please let me know, and I can assist you further. If you don't have access to the logs or if the issue persists, it might be best to reach out to our support team for a more in-depth investigation. Would you like to proceed with checking the logs, or do you need further assistance from our support team?

@Shubham Bajaj can you help me?

@Ch Adeel Can you try another call with the GPT-4 model and set the model temperature to 0.3? Please let me know the outcome.

Using this transfer tool?

Make sure to use custom transfer tool for transfer to phone number when using squads and default function for transfering between the squad.