YOU SAID:
you used to call me on your cellphone
INTO JAPANESE
あなたはあなたの携帯電話で私に電話していました
BACK INTO ENGLISH
you were calling me on your cell phone
INTO JAPANESE
あなたはあなたの携帯電話で私に電話していました
BACK INTO ENGLISH
you were calling me on your cell phone
That didn't even make that much sense in English.