There’s a new article on The Hollywood Reporter saying that fans will be able to talk to Twilight stars who will be unable to make it to Comic Con

Ashley Greene, Jackson Rathbone, Elizabeth Reaser and Charlie Bewley won’t be on hand for the actual festivities, but Summit Entertainment tells THR that fans will be given the opportunity to speak with them via telephone.
Attendees are invited to stop by the Summit booth (4029) and submit questions that they would like to ask each of the stars. The ultimate fans with the best questions will be selected to speak with the talent live on the phone.
Get your questions ready and stop by the Summit Booth if your going to Comic Con!
via THR