YOU SAID:

Do you used to call me on my cellphone

INTO JAPANESE

あなたは私の携帯電話で私に電話をかけていたのですか

BACK INTO ENGLISH

Did you call me on my mobile phone

INTO JAPANESE

あなたは私の携帯電話で私に電話をかけましたか

BACK INTO ENGLISH

Did you call me on my mobile phone