Why did the electric signal receive a phone call from the epidemic prevention and control office, but the mobile phone number was not?

Maybe when you went to other provinces and regions, you registered the travel itinerary code of epidemic prevention and control with your electric signal, but you didn't register your mobile phone number, so you can't get a call from the epidemic prevention and control office on your mobile phone number.

Extended data:

Epidemic prevention and control itinerary is a function of the State Council client applet. Launched by China ICT Institute of the Ministry of Industry and Information Technology in conjunction with three major operators, it provides itinerary inquiry service for 654.38+600 million mobile phone users nationwide by using the communication big data of three basic telecom companies, namely China Telecom, China Unicom and China Mobile. Support one-click query 14 days (stay for more than 4 hours) to visit countries (regions) and domestic cities. Epidemic Prevention and Control travel itinerary helps you to prove your itinerary conveniently, improve the efficiency of itinerary inspection of enterprises, communities, transportation departments and other institutions, and speed up the process of returning to work and production.