CA-SIM is a SIM card with Bluetooth 4.0. Based on the Public Key Infrastructure, it provides to the user a safe and covert authentication and thorough related APP services.
A smart Wireless Network Ecosystem with Terminal + APP + CA-SIM + Cloud Background, providing various O2O services to build an all-in-one smart live network.
On the basis of CA-SIM Real Name Authentication, wollar/traffic exchange provides a platform to exchange, give out or trade wollar and traffic to the users and merchants.