Hi there! 👋 I understand you're facing a Bad Request (400) error when trying to make outbound calls to Portugal using the Vapi Module in Make.
I can't see your specific account configuration, but I can definitely help explain what's likely causing this issue based on the information you've provided.
The most probable cause is that Vapi numbers have geographic restrictions. According to the [documentation I found](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1343965987070021763), Vapi's free telephony numbers can only be used to call US numbers. This would explain why you're getting the error when trying to call a Portugal number (+351).
To resolve this issue, you have a few options:
1. **Use numbers from other providers**: Consider using numbers directly from providers such as Twilio and Vonage for making calls to international phone numbers like Portugal, as mentioned in the [documentation](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1342942393267257475).
2. **Check concurrency limits**: Make sure you're not exceeding the maximum number of concurrent calls allowed by your Voice API plan, as this can also cause a Bad Request 400 error according to [this information](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1334142600772456508).
3. **Verify phone number format**: Ensure the phone number is in the correct E.164 format (e.g., +351936219060) as mentioned in the [documentation](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1335869152535121960).
4. **If using Twilio**: Check that Portugal is enabled in the 'Geo Permissions' section of your Twilio Console and that your Twilio account has the necessary permissions for international calling, as noted in [this resource](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1336432457943351358).
Hey Barak,
In case you are using VAPI's own number or VAPI's provided number, they can only make calls in US regions. To make international calls, you need to purchase from Twilio and enable the geo-location permissions. After that, you will be able to make the calls.