@Jose
I'm glad to hear that you're exploring the capabilities of making outbound calls with your own assistant. It's not uncommon to encounter some hiccups when setting up new integrations. To assist you better with the issue you're facing regarding the end-of-call process, I would need a bit more information about how you have set up your assistant and the conditions under which the end-of-call does not go through.
In the meantime, if you believe this is an issue with the Voice API you're using, you can reach out to the support team of Make.com or the provider of the Voice API for more detailed assistance. They would be able to provide you with specific guidance based on their system's logs and your setup.
If you have any error messages or specific scenarios that you can share, that would also be helpful in diagnosing the problem. Please let me know how I can assist you further!