Hey Vapi team! 👋 We’re currently using your API to make calls through our agents, and we’re also leveraging Twilio numbers for outbound calls. We’re looking to use Twilio’s feature that allows setting a verified caller ID as the From number, essentially masking the call to show a different number that’s been verified. Is this supported through the Vapi API? If not, do you know of any third-party service or workaround that would allow us to achieve this? Thanks in advance!

Currently, the Vapi documentation does not confirm support for Twilio's verified caller ID masking (using a verified "From" number) via the API. The standard way to make outbound calls with Twilio numbers in Vapi is as follows:

bash
curl --location 'https://api.vapi.ai/call/phone' \
  --header 'Authorization: Bearer YOUR_VAPI_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "assistantId": "YOUR_ASSISTANT_ID",
    "customer": { "number": "DESTINATION_PHONE_NUMBER" },
    "phoneNumberId": "YOUR_TWILIO_PHONE_NUMBER_ID"
  }'

If you need verified caller ID masking, please check with Vapi support for the latest feature status or possible workarounds, as this is not documented as supported at this time. Source: - [Vapi Twilio SIP Integration Documentation](https://docs.vapi.ai/advanced/sip/twilio)

@Vapi Support Bot please advise

+1 Did you figure something out for this? It seems like an important issue, controlling the number/caller id that you are calling from.

Please refer to the documentation regarding this inquiry: