According to your description, you can call 10000 Labor Service to ask your questions in this respect in detail.
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China Telecom's 4G brand name is "Tianyi 4G", which continues the brand of "Tianyi" in the 3G era and highlights the concept of "Faster and Better" in 4G. Its meanings include: Tianyi's 4G Internet access speed is fast, its Internet applications are rich, its call quality is high, its use is green and healthy, its communication information is confidential, and its network coverage is complete, which means that China Telecom's 4G network speed is faster and its user experience is better. Sichuan Telecom will always serve you.