Why did the same mobile phone receive big data, but the mobile one didn't?

Why the same mobile phone receives big data, but it doesn't move, why the big data travel card can't find the itinerary and its solution;

1. First, in the morning or in the morning, make the first call, you can call any user, and the call duration should be controlled at more than 3 minutes.

2. Then after 4 hours (the condition of staying in the city is more than 4 hours), make a second call, which is also more than 3 minutes, and must be completed before 8 pm.

3. You can't find travel itinerary if you are a user who doesn't transfer the number within 14 days. It may be due to insufficient valid data in the past 14 days. Call as often as possible. If the earliest and latest time spans in a day are more than 4 hours, the itinerary can be displayed if the stay of 4 hours is satisfied.

4. If you are a roaming user outside the province, especially in Shandong, Fujian and other places. It is suggested that you call five times at five different time points, such as 7, 8, 10,1,12, and you can also find the next day's itinerary.

5. If the traffic record meets the requirements, but it is still displayed, you can take a screenshot of the specific call record, which needs to be accurate to the hour, and then send it to the mailbox. The official will complain to the operator and handle it.