What are the technologies and functions of soft sim card and soft calling card?

Soft s i m card technology is to chip s i m card. Soft s i m card technology can write operator information as needed, from doing it to letting mobile phone users switch operators themselves, and it is no longer necessary to switch s i m cards in the same way to change the dilemma of operators. This technology will greatly enhance the initiative of users in the use process, but it will also damage the profits of operators and slow down the development of the whole ball. Fortunately, Bunny has developed a "flying whale soft card". Because it is attached to the existing s i m card, it can be used immediately without changing the mobile phone. It is especially convenient for people who have traveled abroad to switch and open the local transportation business network with one button overseas.