What is the automatic roaming service of China Telecom in Macau?

"China Macau Auto Roaming Service" is a roaming service launched by China Telecom Guangdong Company to Tianyi mobile phone users in the province. Upon arrival in Macau, users automatically roam to the CDMA network of China Telecom Macau Company, and can use voice, SMS, MMS, CRBT, wireless Internet access (CTWAP/CTNET) and other functions at the same time. To handle traffic, you can search the official account of China Telecom's customer service letter WeChat → "Handle" → "Traffic Supermarket". The customer service will answer your questions on the 8th.