Upgrading to a new AT&T phone?AT&T Mobile Transfer migrates contacts, photos and videos to and from select AT&T wireless phones. AT&T is offering this application as a free service for any AT&T wireless subscriber.Customers upgrading their phones can transfer up to 2GB of photos and videos using this wireless service. While this can be done over any data network, AT&T recommends using Wi-Fi for doing the migration. Data network charges may apply for 2G, 3G or 4G usage.