I can see there is a 'Fallback Destination' field in the outbound section of the phone number inbound settings. Is there a way to always use this fallback number where the number is called?

Based on the information I found, the Fallback Destination is not intended for unconditional call forwarding. Instead, use the

forwardingPhoneNumbers

attribute in your phone number configuration:

json
{
  "forwardingPhoneNumbers": [
    {
      "number": "+15558675309"  // Your external number in E.164 format
    }
  ]
}

This will route all incoming calls to your specified external number without requiring any conditions to be met. Source: - [Discord conversation about forwardingPhoneNumbers](https://discord.com/channels/1211482211119796234/1334110285425807391)

Do you mean that the forwardingPhoneNumbers is a feature of the api that is not available in the UI?

What you're looking for is call forwarding using the transfer call tool. You can set it up to transfer right away or based off of what the caller says. You can learn more in the docs here: Also, a simple way on the UI, if thats what you're looking for (see screenshot) is also an option. You can set up a number to transfer too and if the user asks to get transferred, it will go to that number. So yes, it's available on the UI but using the transfer call tool is more dynamic. https://cdn.discordapp.com/attachments/1364974900246347776/1365081586789388389/Screenshot_2025-04-24_at_4.42.02_PM.png?ex=680c02cc&is=680ab14c&hm=6805e421e3b1df3d6be443e8c0a11dfd484fccfff091f33ae97a51db83b2a47e&