Starting on September 1, China Telecom began to stop selling its unlimited data plan. When the data traffic exceeds the quota, there are no longer limits on the speed and the data traffic. China Mobile and China Unicom soon follow up. However, the unlimited data plan you have had before can still be used.
According to industry sources, the unlimited plan is the product of vicious competition. Two years after, the growth rate of operators' revenue from data traffic has shifted from a high increase to a negative one. It has become the consensus of operators to stop unlimited plans and save themselves.