To ensure your phone calls are being recorded, first and foremost you must ensure this setting is turned on. To find out how to turn on call recording, please visit the help article on How to turn on Call Recording.
Once your call recording is turned on, your recorded calls will show up under the call log for the respective contact.
For a more detailed walkthrough of these steps, please review the video below.
If you are looking to download any specific call recording, for training or other purposes, you simply need to open the contact record, find the call log/history for the specific call, and you'll be able to download the recording from there!