Unicom iron powder, how does Unicom use SMS to open traffic? I'm still using the 2G card.

If you are Unicom's 2G number, you can open GPRS data online traffic or 3G provincial traffic packets (GPRS and 3G provincial traffic packets can only handle one kind, and cannot overlap). As the charging and handling methods of GPRS in different regions may be different, you can consult Unicom customer service. If 3G provincial traffic packages need to be launched, there are currently five kinds of 3G provincial traffic packages: 10 yuan package, 20 yuan 100MB package, 30 yuan 500MB package, 50 yuan 1G package, and 100 RMB 2.5G package (Note: 50 yuan and10 are not available in some cities. You can send the corresponding SMS instruction to "10010":1for free. 10 yuan package: "KTLL 10" takes effect the following month, and "LJKTLL 10/0" takes effect immediately; 2.20 yuan package: "KTLL20" takes effect the next month, and "LJKTLL20" takes effect immediately; 3.30 yuan package: "KTLL30" takes effect the next month, and "LJKTLL30" takes effect immediately; 4.50 yuan package: "KTLL50" takes effect the next month, and "LJKTLL50" takes effect immediately; 5. 100 Yuan Package: "KTLL 100" takes effect the following month, and "LJKTLL 100" takes effect immediately. If you have Unicom 3G number, you can open a 3G domestic traffic package if you meet the requirements. At present, there are three kinds of 3G domestic traffic packages: 10 yuan package, 100MB package, 300MB package in 20 yuan and 500MB package in 30 yuan. The specific discount depends on local conditions. You can send the corresponding SMS instruction to10010: (1)/0 yuan package: "KT3GLL 10" takes effect the next month, and "LJKT3GLL 10/0" takes effect immediately; (2)20 yuan Package: "KT3GLL20" takes effect the following month, and "LJKT3GLL20" takes effect immediately; (3)30 yuan Package: "KT3GLL30" takes effect the next month, and "LJKT3GLL30" takes effect immediately; (4) Send "QX3GLL" to unsubscribe. For the traffic package that can be superimposed on the current package, you can consult the local customer service first.