Most netizens feel that the practice of China University of Petroleum is "slightly cruel". In the survey of "Should cell phone signals be blocked in class?" conducted by Renren.com, the number of netizens who did not support it was more than twice the number who supported it. Some netizens believe that this "high school" education management method is not what the university in their minds would choose. Some netizens also believe that Can You Make A Cell Phone Blocker blocking mobile phones is of little significance, "you can play stand-alone games, you can read novels, and you can sleep". And netizens are most worried about the lack of mobile phone signal, emergency calls or communications. However, some alumni felt that they misunderstood the intention of the school and the network center, "According to my analysis, this is not for class use, even the teacher will not open it, because the teacher's mobile phone has no signal, this should be convenient for exams." The alumni: But now some teachers have begun to use it wisely. In the East China Bar of China University of Petroleum, it was found that some students who stayed in the school for self-study during the summer vacation of 2013 witnessed the school's installation of cell phone jammer in the classroom, and took a photo and posted it.
On August 19, Mr. Chen, the director of the Internet Center of Shida University, clarified that the so-called Can You Make A Cell Phone Blocker and cameras were built in conjunction with the standardized test room construction, and were only used during exams, not to block mobile phone signals in peacetime, but to install surveillance cameras in classrooms last year. In addition, the standardized test room is constructed according to the requirements of the relevant documents of the Ministry of Education and the Department of Education. In addition, the wireless network established by the lecture hall group and Nanjiao is a wireless network based on the campus network account (UPC-Stu), which has nothing to do with the mobile wireless network (CMCC). This is not the only company that installed mobile phone jammers in classrooms. China University of Petroleum (Beijing) used mobile phone jammers in its third teaching building throughout the day in February 2012. 15 minutes, 1:30 pm to 5:15 pm, 6:30 pm to 9:10 pm, a total of nearly ten hours is the opening time of the mobile phone signal jammer. To this end, some students reported this situation to the Beijing Municipal Education Commission. In addition, in May 2007, a mobile phone signal jammer was also installed on the third floor of the Fuchengmen Campus of Beijing Technology and Business University. In the building, all mobile phone signals were blocked. The school said that the move was to build a style of study and prevent students from continuing to use mobile phones during class, but this practice was questioned by some teachers and students. In May 2006, the Central University of Finance and Economics announced on its website that the school's teaching building and the lecture hall of the attached building would install mobile phone signal shielding devices. Students were arguing about this. Several media in Beijing published reports on this, which caused widespread social controversy.
