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@blehh I understand that setting up call forwarding can be a bit confusing, but I'm here to help you through it. To set up basic call forwarding to a live agent, you typically need to use the

transferCall

function with the

forwardingPhoneNumber

parameter. Here's a simplified version of what you need to do: 1. When the caller indicates they want to talk to a live agent, you should invoke the

transferCall

function. 2. Pass the

forwardingPhoneNumber

parameter to this function, which should be the phone number of the live agent or the call center you want to forward the call to. You mentioned that you're seeing the correct logs, but no actual call is being made. This could be due to a few reasons: - The

forwardingPhoneNumber

might be incorrectly formatted or invalid. - There might be an issue with your Vici system handling SIP REFER messages if you're using such a system. - There could be a problem with the

forwardingPhoneNumber

attribute in the API, as you've mentioned validation errors. To troubleshoot this issue, please ensure the following: - The

forwardingPhoneNumber

is in the correct E.164 format (e.g., +15558675309). - If you're using a Vici system, check that it can handle SIP REFER messages. - If you encountered a validation error with the

forwardingPhoneNumber

, try setting it to null or an empty string as a test. If you've already checked these and the issue persists, please provide me with any error messages you're seeing in the logs, and I can assist you further. If there are no error messages, it might be best to reach out to support for a more in-depth investigation.

@Vapi for example: - do i need to create a tool separately and reference it from the assistant? - does there need to be a tool embedded in the assistant? Can you provide an assistant json that would have all the options needed (prompt, tool, forwarding number, etc)?

@Vapi i'm following [this guide](https://docs.vapi.ai/assistants/function-calling) to using the transferCall function. My logs show that the assistant is calling the transferCall queue but the call is not transferred and then eventually assistant hangs up. the number shown is correct and it's failed to forward to both my cell phone and another twilio number (twilio shows no inbound call log on that number). how can i figure out why the built in transferCall tool isn't working on my assistant? https://cdn.discordapp.com/attachments/1335869152535121960/1336207484653801482/Screenshot_2025-02-03_at_9.26.28_PM.png?ex=67a2f7b1&is=67a1a631&hm=01ec6f1b95072cb6a5c6732b604307c98f05cae8e6b06e99b14e279fc71a0b09&

@User i'd appreciate if yall could take a look at let me know what i'm missing here too 🙏

if helpful or affects how i need to do tool setup - my assistants are created dynamically by my server