The travel card cannot receive the verification code. What happened?

In order to curb the epidemic, many epidemic prevention products have been introduced for users to use, so that others can rest assured of their annual salary. Only by reporting in real time can we not let go of any danger. WeChat travel card can't receive verification code, and travel card can't find travel data. What's going on

1, "Communication Travel Card" analyzes the signaling data and bill data of mobile phones. Therefore, the premise of having travel data is that users generate data in the process of using mobile phones. If the user's mobile phone is connected to Wi-Fi all the time, and there is no 4G traffic and telephone, the operator can't get the signaling and bill data, and naturally it can't analyze the travel data. In this case, you can try to make a few more calls, or turn off the Wi-Fi connection and use 4G traffic, and you can find the data the next day without any problems.

2. In order to avoid the position deviation caused by the coverage of base stations in neighboring cities. The travel card is set to meet the judgment condition of staying for 4 hours, and there are also some tips when making a phone call: in one day, the time span between the earliest call record and the latest call record needs to exceed 4 hours (for example, once at 7: 00 am and once at noon 12) to meet the requirements and display the travel. The same is true with traffic.

3. Why did I end up in a city I have never been to? This may happen if the user lives near the city boundary or travels long distances by car or train. This is because the data source of the location query service provided by the travel card is the signaling data of the mobile phone, and the location information is obtained through the base station. In order to ensure communication continuity, realize coverage without blind areas and provide better communication service quality, the signals of base stations in the two places at the junction of administrative divisions may cross-cover, resulting in deviation of results.

4. What if I can't receive the travel card verification code? The verification code of the travel card is issued by the SMS gateway of each operator. If the number of requests is too large in a short time, resulting in SMS congestion (such as peak hours), you will not receive the verification code. I suggest waiting for a while to try again.

5. It is suggested that you can download the "Communication Travel Card" APP directly. In the 4G environment (Wi-Fi is turned off), you can use the one-click login service provided by the operator, and you don't need to enter your mobile phone number and verification code for inquiry.

6. What are the ways to use the communication travel card? Use the "Traffic Travel Card" APP to search for "Traffic Travel Card" downloads in major application markets, or scan the QR code below to download.

7. Use the "Traffic Travel Card" WeChat applet. You can use it by searching for "communication travel card" in WeChat applet.

The above is about how the travel card can't receive the verification code.