Unicom does not need to insert the physical card can use the business is which?

China Unicom launched eSIM product business are virtual card business. eSIM is a technology that supports remote configuration and management of user authentication data (including downloading, changing, deleting, etc.), and the scope of application includes M2M business and public business. eSIM makes the SIM card with the characteristics of electronic and Internet, and can realize remote and instant issuance of card opening, for eSIM wearable products. China Unicom's eSIM services include: independent number business, one dual terminal business, and primary and secondary card business.