I keep trying to call my friend in Canada on her cell from mine, I’ve tried 2 different phones, one says “Check call restrictions 56” the other rings 1 or 2 times and says Unable to make this call, please try again later. Do you have any idea what I should do Answer 1 Call restriction 56 means that the number you are calling is international and you cannot make international calls. If you call customer service they can help you remove the restriction. Answer 2 What do I do to cancel this request