I started the mobile phone call reminder service. Why is my mobile phone turned off, or I can't receive information when there is no signal?

Hello, according to the description, it is suspected that the incoming call set by your mobile phone has been transferred to the incoming call reminder platform, which is a value-added service provided by mobile. If you apply for a new card, it may be that the last user set it up and the call forwarding status has remained so far. You can set to cancel all call forwarding and try again. This function setting is usually used for connection failure and shutdown state transition. If you don't open this service, you will be prompted as you said after the call, which is normal. If the service's call reminder platform is opened, it will send you a text message to remind you to dial the number after your power-on signal is good. You can call the customer service number 10086 to learn more about how to use this service and its features. In addition, the incoming call reminder is divided into two situations: default call forwarding and self-setting. Users can also set unconditional transfer to the call reminder platform. In this way, all incoming calls will be transferred to the incoming call reminder platform. If users open an opportunity, they will receive a reminder message at the same time. Take pictures with your mobile phone. If it helps, please adopt it. If in doubt, please ask. .