Я пользовался (воспользовался) телефоном, когда звонил другу - I have been used the phone when I called a friend
That sentence doesn't work. "I have used the phone...."?
Maybe like "A phone was used by me when I called a friend.". It's hard to translate things like that when there's such a gap between meaning and use, in english. Like, that sentence is unuseable.