I cannot hear them clearly, only myself.
Let me take that again. You can hear them just fine during the session, just that the recording is one-sided. If that’s more accurate, you join the billions of people on Earth struggling to record both sides of a call.
It’s not easy.
You never said which service you’re using. Both Skype and Zoom recognize the problem and offer to record the transaction for you. After the completion, they send you a sound file. I believe both offer a mix and Zoom may be able to send you the two sides individually for post production mixing.
Pamela for Skype is available for you to record it all yourself. It’s Play to Play software. The free-version is restricted.
That and there’s a number of hardware solutions.
Koz