The mobile phone usage of the staff of the administrative department of a company is as follows: ① Xiao Wang has called the owner of the administrative department; ② Xiao Li has called the phone of Xiao Zhao, but Xiao Zhao has not called other people; ③ has not answered the call from the administrative department People who call others have never called anyone else. From this we can infer:. ['Xiao Zhao has never answered a call from Xiao Li.', 'Xiao Li used to answer the phone call from Xiao Wang.', 'Someone from the Administration Department called Xiao Wang.', 'Xiao Wang answered the phone from the owner of the administration department.']