How do I set phone call boundaries with parents in a small house?

It feels like my parents want to keep tabs on me since they encourage me to call my friends in the living room and i said no i will talk to her later. The only time i considered talking to my friend was when the tv was free and they sat next to me anyway. Then they mentioned i can talk to her on the phone? Like ok, thanks for allowing me to contact my friend. When im sure they would be all ears and ask why i spend so much time talking to her or her schedule etc… lol wtf i do not know how to take it or why they want to be constantly in the TV room even if i’m using it and talking to my friend as they suggest 🙄 i told them it makes me uncomfortable that they always listen and make comments and they always use the “it is a small house”. Maybe there is something soundproof i could use?

How do I set phone call boundaries with parents in a small house?
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