We noticed a problem: we use Twilio numbers integrated into Vapi to call the US, and there are situations when an outgoing call is made but the system cannot connect, displaying “customer busy” even though the subscriber we are calling is online and can accept calls from any other number. Here is the latest example of a number we tried to call with the AI voice assistant: +1 (224) 504 7523.

Thank you for sharing the details. To help diagnose why the call to +1 (224) 504 7523 shows "customer busy" even though the line is available, could you please confirm if the Vapi or Twilio call logs for this attempt show any specific error codes or ended reasons besides "customer busy"? This will help narrow down whether the issue is with Vapi, Twilio, or the destination carrier. Sources: - [Vapi Call Ended Reasons Documentation](https://docs.vapi.ai/calls/call-ended-reason) - [Vapi & Twilio Call Handling Troubleshooting](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops)

Hi Peter, To retrieve details of an existing phone number, you can use the GET request to the following endpoint: [https://api.vapi.ai/phone-number/:id](https://docs.vapi.ai/api-reference/phone-numbers/get). Here's a quick example using `cURL`:

bash
curl https://api.vapi.ai/phone-number/id \
     -H "Authorization: Bearer <token>"

Make sure to replace

id

with your phone number ID and

<token>

with your actual authorization token. If you need to delete a phone number, the DELETE request can be made to [https://api.vapi.ai/phone-number/:id](https://docs.vapi.ai/api-reference/phone-numbers/delete), again substituting

id

with your phone number ID. For listing phone numbers, you might use the following endpoint: [https://api.vapi.ai/phone-number](https://docs.vapi.ai/api-reference/phone-numbers/list). If you run into any issues, ensure the ID and token are correct, and that the phone number exists in the system. Sometimes, problems like "number not found" can occur due to these common points.

Hii i want same help

Please provide call ids