Recording phone calls is a bit of a grey area. We strongly advise against recording a phone call without permission. If you are recording a phone call, always let the person on the other end of the line know that you are doing so. You wouldn’t record a video without permission, and the same basic principles apply to recording phone calls. There are several cases, such as telephonic interviews, when recording a phone call can be very useful. It could even be to record a recipe that someone narrates over the phone or a set of instructions that you know you’ll forget. As long as the other person is fine with you recording the call, you’re good to go.