The dreamed phone can mean that in your life there will be strangers who will confuse your plans. If the young woman speaks in a dream by phone, she should be afraid of envious competitors. If she hardly can catch that she is told by phone, then it is threatened by evil gossips and loss of the beloved.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.