Your absolutly doing the right thing dont doubt yourself. Your AS will take you for everything you got as your finding out right now. Get the restraining order and press charges and let him sit in jail. Might bring him closer to his bottom, give him some time to think about what hes done and why hes sitting in a cell. Jail can be a real eye opener for some people, they can see their futures if they stay on the path they are on.
As for phone calls I wouldnt take any calls from him. It will only give him more opportunities to LIE and MANIPULATE you some more. I know it will be one of the hardest things you have ever done but it will help you and help him to cut contact with him. Dont open the door for the pity party from him