Well, first I would encourage you all to look at the question in a different way. If your mother is anything like mine, you won't have to worry about how often YOU should phone home because home will most likely be phoning you more often then not...let's face it, our parents love us. So depending on what the balance of incoming calls to outgoing calls to your former abode starts to look like in the first couple of weeks, I would say if the calling is left up to you to phone home at least once a week in the first year. Half as a courtesy to the folks to keep them in the loop on how you are getting adjusted to your new surroundings and the other half to ward off a little bit of homesickness. More often than that might keep you little bit too attached to home and keep you away from discovering all of the wonderful new opportunities and friends at the University.
That is honestly up to you. It's whatever you feel most comfortable with. However, do not feel obligated to do so. Also, you'll probably feel homesick at the beginning, but it'll get better with time once you make friends and feel more comfortable on campus and you'll find yourself phoning home less frequently. It's never a bad thing to phone home.
Honestly this answer depends on the type of relationship you have with your parents. My roommate will talk to her mother at least once a day, while I will call my mother once a week. If you are moving away from home the distance can be extremely hard for some people and you may need to constantly speak to your parents for reassurance and that is perfectly fine. As the semester progresses you may find yourself calling your parents less often and that is also normal. As long as you know that you will need your parents and should call them often it doesn't matter if its once a day or once a week.
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