Custom machine is widely used in 3G mobile phones now. Unicom custom machine can use a mobile card (whether it is a 2G card or a 3G card), but it can only use the GSM network of this mobile phone. That is to say, 2G networks have lost the value of 3G mobile phones. On the other hand, the same is true of Unicom card in custom machine.
However, if China Unicom custom machine (including non-custom machine) and China Unicom's 2G cards are used, 3G performance can still be exerted. At present, China Unicom's 2G(GSM) network actually refers to 2G, but it uses 3G(WCDMA) to access the internet.
So you plug in a mobile card connected to custom machine, and the Internet speed will be 2G.
China Mobile Communications Group Co., Ltd. (hereinafter referred to as "China Mobile") was established on April 20, 2000. It is a mobile communication operator based on GSM, TD-SCDMA and TD-LTE networks. China Mobile Communications Group Corporation is a state-owned backbone enterprise established on the basis of the overall divestiture of the original mobile communications assets of China Telecom according to the deployment and requirements of the state on the reform of the telecommunications system. It was officially listed on May 16, 2000. China Mobile Communications Group Co., Ltd. wholly owns China Mobile (Hong Kong) Group Co., Ltd., and China Mobile Co., Ltd. (hereinafter referred to as "listed company"), which is controlled by it, has set up wholly-owned subsidiaries in 365,438+0 provinces (autonomous regions and municipalities directly under the Central Government) and Hong Kong Special Administrative Region, and listed in Hong Kong and new york.
In addition to the original "M-Zone", "China Tour", "Global Connect", "Power 100" and "G3", China Mobile announced the 4G brand "Harmony! Harmony marks the official launch of China Mobile's 4G service, and its development slogan is: Mobile 4G, the international mainstream, one step ahead.
2065438+On July 20th, 2006, Fortune Global 500 was released, and China Mobile Communications Group Company ranked among Fortune Global 500. [ 1]? In August of 20 16, China Mobile ranked 10 among the top 500 Chinese enterprises in 20 16. [2]? In July of 20 17, China Mobile ranked 6th among the top 500 Chinese enterprises in 20 16. [3]? 20 17 1 1 year1October, and was selected as "Top 20 Innovative Enterprises in Chinese mainland 100 in 20 17". [4] ? 20 17 12.25, China mobile announced that the company name was changed from "China mobile communications group company" to "China mobile communications group co., ltd".