I try to transfer calling to a free vapi number to my number in Colombia, is it possible?

No, you cannot transfer calls from a free Vapi number to a number in Colombia. Free Vapi numbers are limited to US national use only. To enable international transfers (e.g., to Colombia), you must import your own number using Twilio:

bash
# Example: Import your Twilio number for international use
curl -X POST "https://api.vapi.ai/phone-numbers/import" \
  -H "Authorization: Bearer <YOUR_API_KEY>" \
  -d '{ "twilioAccountSid": "<SID>", "twilioAuthToken": "<TOKEN>", "phoneNumber": "+57XXXXXXXXXX" }'

For more details, see the [Vapi phone calling documentation](https://docs.vapi.ai/phone-calling). Source: - [Phone Calling | Vapi Documentation](https://docs.vapi.ai/phone-calling)

So if I want to transfer a call in Colombi or Puerto Rico fir example, the both numbers should be the same country?

Well, i believe you can do a transfer to a SIP URI.

Hi, Free Vapi numbers are limited to US use only. In order to call internationally, try bringing in your own phone number from Vapi supported providers or even your own SIP phone number. To integrate SIP numbers into Vapi, please checkout the documentation here: Thank you