How much does it cost to send and receive short messages when roaming internationally to the United States? How much is it to call the United States and Chinese mainland?

Hello, Beijing Mobile has opened GSM customers who roam internationally. When roaming to the United States in Hong Kong, Macao and Taiwan, call the local telephone in the United States at 0.99 yuan/minute, call the local telephone in Chinese mainland and answer the local telephone, send 0.39 yuan/message to Chinese mainland, and receive the messages for free. Please refer to.