Patent 9300621 was granted and assigned to Apple (company) on March, 2016 by the United States Patent and Trademark Office.
A unified communication application can allow a user to communicate with contacts across multiple electronic communication services. The unified communication application can aggregate communication history between the user and another person. A set of communication files associated with user identifiers of the user and the other person can be obtained, arranged, and presented to the user in an order based on a timestamp of each conversation line in the files.