I have an app in Production mode and wish to use it to make RingOut calls from different extensions. I use my credentials (Super Admin) for my app.
I want the app to be able to do Ringout calls from other extensions in my account. In the URL I use https://platform.ringcentral.com/restapi/v1.0/account/~/extension/<extId>/ring-out.
However, I get an error: CMN-426 Feature [RingOut] is not available for extension ID
Please advise how to get the app to work for all users with phone numbers in my account. Can I not just use my credentials to make calls from any extension?
BTW I use JWT Auth Flow