@Giacomo Mascherin
I understand that changes in the documentation can sometimes disrupt your workflow. The "Create Phone Call" section might have been updated to streamline the content or due to changes in the API's functionality. However, if you're looking for specific information on how to select the provider/models and generate the JSON file, I can certainly help guide you through the current process or provide you with the necessary information.
If you need detailed instructions or assistance with any specific part of the API, please let me know, and I'll do my best to assist you. If this is a feature that has been removed and you'd like to see it reinstated, I would recommend providing that feedback directly to the VAPI team. They are always looking for ways to improve the documentation and the user experience.