The trip code calculation of 14 days refers to the calculation of the user's trips within the first 14 days, which is done in the operator's back office. The counting rule is that a stay of more than 4 hours in the local area will be recorded, and the revocation will start counting the 14 days only after 4 hours of landing back at the destination, with a one-day delay in the result.

1, the trip code how to count the full 14 days? One starts counting from the day before the trip card and counts forward 14 days. For example, if you look at the trip card on February 15, a full 14 days is a reference to February 1 - February 14th. The other type of calculation starts from the day after the itinerary card and counts backward 14 days. For example, if you look at the itinerary card on February 14, a full 14 days would be referencing February 15 - February 18th.

2, because the service uses the base data, in order to ensure that the communication is continuous, to achieve the coverage of no blind spot, the administrative division of the junction of the two places of the base station signal will be cross-coverage, resulting in the results of the bias, the use of the use of other proof can be combined with the corresponding adjustment. Query results page will use green, yellow, orange fish, red fish and color for marking, the rules will be adjusted according to the actual situation.

3, itinerary card, is the use of cell phone "signaling data", through the user's cell phone is located in the base station location to obtain, for the country's 1.6 billion cell phone users free of charge to query the first 14 days of my visit to all the cities and municipalities of the service. "Communication big data trip card" based on telecommunications big data, by the three major operators to provide a unified interface, only to fill in the cell phone number, verification code and confirm my authorization.