Services included in the GSM Diamond Card. The GSM Dining Experience Hall is a service included in the GSM Diamond Card to enjoy the GSM Premium Privileges. "GSM is the flagship brand of China Mobile, with high visibility, a solid brand image and a large number of high-end customers. It has become the mobile information service brand with the widest network coverage, the largest number of countries and regions for international roaming, and the most complete functions, which fully reflects the core concept of the GSM brand - "GSM" - and is the first mobile information service brand in China. It has become the most comprehensive mobile information service brand in China with the widest network coverage, the most international roaming countries and regions, and the most complete functions, fully reflecting the core concept of the "GlobeNewswire" brand - "I can".