Rather than being preoccupied with "fate" and "signs," perhaps the better thing to do is ask yourself is what intent you have for calling (is it a simply Hello, how are you doing? or asking her out?), what do you want to occur, and is that occurrence realistic? What do you think she'll feel if you start communicating once more? Do you see this benefiting both of you? Can you handle the emotional risk in possibly being disappointed if things do not go well? Will this cause you more difficulty in getting over her?

Just look out for yourself, and be sensitive to her as well.