Call forwarding means that you can't answer the phone or you don't want to answer the phone, so you can forward the call to another phone number. It is a traditional communication service in the telecom industry, also known as call forwarding and incoming call forwarding. The so-called call forwarding, also known as call forwarding and call forwarding, generally refers to a function that can be set to transfer calls to other mobile phones when the phone user does not want to answer, is inconvenient to answer, or cannot answer the phone because the phone is out of power or faulty. Obviously, the original intention of caller ID design is to provide convenience for users, so that users can decide whether to answer the phone or how to answer the phone at any time according to their own wishes.
With the development of Internet, there are some problems in telephone call transfer, which are either exploited by criminals or the program itself lags behind in the face of new problems. However, with the development of practice and technology, problems can always be solved. As we all know, mobile phones can be used for mobile communication and real-time data exchange. However, the premise of realizing mobile communication is that users must be in the network coverage area of their network operators. Sometimes when the mobile phone is in the basement or on the floor of a high-rise building, it will "leave" the coverage area because it can't find the network.
After the mobile phone leaves the coverage area, under normal circumstances, the mobile phone cannot make or receive calls. At the same time, at this time, the mobile phone will still desperately search for signals, resulting in excessive battery consumption. At this time, it is necessary to use the call forwarding function to transfer it to the fixed telephone, so as to ensure that the incoming call will not be lost.