How to transfer calls with xml code with vapi and ...
# support
m
So i posted some help about an hour ago asking if i can transfer calls with my vapi assistant and twilio. Number. Im a bit stuck with the api routing. I have this api call and when i try to send the call to my api or somewhere to transfer the function im having trouble getting it to work. I had it so when a person asks to speak to the front desk it calls my applicaiton and then it respons with twilio xml saying to dial the number but this did not work. Im a bit stuck at the moment and help help would be huge. curl --request POST \ --url https://api.vapi.ai/call/phone \ --header 'Content-Type: application/json' \ --data '{ "assistant": { "model": { "tools": [ { "type": "transferCall", "function": { "name": "Send-ToFrontDesk", "description": "Send the user to front desk." } } ], "model": "gpt-4o", "provider": "openai" }, "transcriber": { "provider": "deepgram" }, "firstMessage": "Hey", "metadata": { "message1": "Here is my text message" }, "serverUrl": "https://api.clientbase.so", "serverMessages": [ "end-of-call-report" ] }, "customer": { }, "phoneNumber": { }, "assistantOverrides": { "model": { "provider": "openai", "model": "gpt-4o" } }, "metadata": {} }'
v
message has been deleted
@mikepowers It seems like you're trying to integrate VAPI with Twilio to transfer calls to the front desk. The process involves using Twilio's
<Dial>
TwiML verb to forward the call to another number. However, you're encountering issues with the API routing and the response handling. To assist you better, I'll need a bit more information: 1. Can you confirm if you have set up a webhook in Twilio that points to your VAPI application server URL? 2. When you say the Twilio XML response to dial the number did not work, what exactly happened? Did you receive any error messages? 3. Have you verified that the number you're trying to dial is correctly formatted and is allowed by your Twilio account's voice permissions? Once I have this information, I can provide more targeted assistance to resolve the issue you're facing with the call transfer.
You can continue this conversation by mentioning me in the message.
m
1. yes my twilio api handle goes to vapi so when someone calls it starts with vapi. 2. nope i tried to respond to it with xml, this is my server route // New /dial endpoint to handle call transfer app.post('/dial', (req, res) => { console.log('Incoming /dial request'); console.log('Headers:', req.headers); console.log('Body:', req.body); const twiml = new twilio.twiml.VoiceResponse(); twiml.dial('+15865660231'); // Transfer the call to the specified number const twimlString = twiml.toString(); console.log('TwiML Response:', twimlString); res.type('text/xml'); res.send(twimlString); }); and this is the console log TwiML Response: +15865660231 https://cdn.discordapp.com/attachments/1248762647814606949/1248763598948536380/image.png?ex=6664d93a&is=666387ba&hm=d38be92b39d823e91e67aebd4dfbe079a8a993fbb023adce89cbc93c09fabd1a&
3. And yes the numbers have been triple checked
v
Got it. Tagging @User for additional help.
s
You can checkout this guide https://docs.vapi.ai/call-forwarding