Hello Vapi Team, I am encountering a persistent issue when attempting to make a POST request to https://api.vapi.ai/call/phone. Details of the issue: Twilio Number: +1 762 763 1550 (active and provisioned, with all capabilities enabled) Account SID: ACd81c84d2d101e2245256b33ee30c0d6a (verified to match Twilio’s system exactly) Authentication: Using the Authorization header with the provided token Content-Type: application/json Error: 400 - Number Not Found on Twilio Troubleshooting already attempted: Verified Account SID matches Confirmed number provisioning and capabilities in Twilio Ensured authentication token is correct Checked for subaccount vs main account mismatch Considered possible Vapi integration cache or sync issues Looked into region/environment differences Despite these checks, the error persists. Could you please assist in identifying why this Twilio number is not being recognized by the Vapi API? Thank you for your support. https://cdn.discordapp.com/attachments/1424224303733538937/1424224304052047944/image1.jpg?ex=68e32bbe&is=68e1da3e&hm=e36c26bbd8a7717932be0f731a8ee6e1da4c5d31d403a8cd4b9871f415c14f98& https://cdn.discordapp.com/attachments/1424224303733538937/1424224304404496539/image2.jpg?ex=68e32bbe&is=68e1da3e&hm=760755dfcaea29a91b3ff12a1283fbd13b00b786f52bd653bcbc89b662275298& https://cdn.discordapp.com/attachments/1424224303733538937/1424224304752754728/image3.jpg?ex=68e32bbf&is=68e1da3f&hm=acb81230587492b3ecdc6db6d2c018994c605969a7e76547894429bfdec95ae4& https://cdn.discordapp.com/attachments/1424224303733538937/1424224305062871081/image4.jpg?ex=68e32bbf&is=68e1da3f&hm=9a0cb2961491557130cb67aec87c4df622b20e0c4011543a0f567b721902c820&

Hi there, Thank you for your message. Our team is currently out of the office. We operate Monday through Friday, from 9:00 AM to 8:00 PM Pacific Standard Time (PST). We’ll get back to you as soon as possible during our normal business hours. If your message is urgent, please mark it accordingly or include “URGENT” in the subject line, and we’ll do our best to respond promptly. Warm regards, Vapi Customer Support Team

Suggestion: Before making outbound calls with your Twilio number via Vapi, you must import the number into Vapi using your Twilio credentials. In the Vapi dashboard, go to the Phone Numbers section, click Import, and enter your Twilio number and credentials. Example cURL for API import:

bash
curl -X POST https://api.vapi.ai/phone-numbers/import \
  -H "Authorization: Bearer YOUR_VAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"number": "+17627631550", "provider": "twilio", "accountSid": "YOUR_TWILIO_ACCOUNT_SID", "authToken": "YOUR_TWILIO_AUTH_TOKEN"}'

After successful import, retry your outbound call request. (See the [Vapi documentation](https://docs.vapi.ai/phone-numbers/import-twilio) for details.) Source: - [Import number from Twilio](https://docs.vapi.ai/phone-numbers/import-twilio)

already enetered, "URGENT". https://cdn.discordapp.com/attachments/1424224303733538937/1424225573412274268/image.png?ex=68e32ced&is=68e1db6d&hm=c583d7e7101c1659ffe04808d1a6bbc99d6fa667da791930b30460d1f5425c15&

If you are trying to make a call through the API, use the endpoint

https://api.vapi.ai/call

More information in the documentation here: