Roommate Issue

Du
My roomie (I'm a freshman in college) is great in that not too much bothers her (if I don't get around to cleaning my side of the room for a week, she doesn't get bugged by it), but she talks on the phone in the room without leaving, which bothers me because I'm trying to watch TV or relax but instead I'm involuntarily listening to her talking on the phone. It's her room too, but every time I have a phone call, I leave the room. Is it poorly mannered of me to want her to leave, or is it considerate for a roommate to take a phone call in the hall/somewhere else? Agh
I also want to ask her to talk outside but I never want to be the person who has too many requests (even though I know that I don't).