YOU SAID:

when i call you, answer the phone

INTO JAPANESE

私があなたに電話するとき、電話に出てください

BACK INTO ENGLISH

Answer the phone when I call you

INTO JAPANESE

電話をかけたら電話に出る

BACK INTO ENGLISH

Answer the phone when you make a call

INTO JAPANESE

電話をかけるときに電話に出る

BACK INTO ENGLISH

Answer the phone when you make a call