How to record a phone call on an iPhone

If you are referring to call recording...

Call recording in many countries is legally not permitted.

There are many third-party apps that you may use.

However, I live in India and am very skeptical about "this" use because Supreme Court of India has recognized the right to privacy as a fundamental right under Article 21 of the Constitution as a part of the right to “life” and “personal liberty”

Rethink about it and if you still think otherwise, you may please provide --> Product Feedback - Apple <-- here

You need to update your iPhone to iOS 15.4.1 and to record a phone call you can use any third party app there are bunch of them in the App Store , don’t know if that is legal to do