Open the cell phone software download platform, search for communication trip card, and then click communication trip card in the search results. Open the details page of the communication card, you can see that the communication card is developed by the China Academy of Information and Communication Research, and then click on the installation, after the installation is complete, click on the desktop of the cell phone communication card.

Communication big data itinerary card, by the China Academy of Information and Communication Technology, China Telecom, China Mobile, China Unicom three basic telecommunications enterprises using mobile signaling data, through the user's cell phone is located in the location of the base station to obtain, for the country's 1.6 billion cell phone users free of charge to provide the query service, the cell phone users can through the service, query the first 14 days of the person to all the cities and municipalities of the information.