How to open ocs dual 4G traffic king package

If you are a new account holder, this dual 4G traffic king package is a product launched by Guangdong Unicom. You can buy it in Unicom business hall or mobile phone agency. If you switch from other packages to this package, users will not be bound by the contract plans of 2G prepaid, dual 4G traffic king (product code: 16 16365438, which is different from dual 4G traffic king) and 2G/3G post-paid packages.

Post-paid users can go to their business hall to apply for the dual 4G traffic king package before the 28th of each month (excluding 28th). Transfer packages are all successfully applied in the current month and take effect in the following month. The instruction for prepaid users to switch packages is to send a short message "ZTC3252" to 100 10 to switch to 15 yuan dual 4G traffic king package; Send the short message "ZTC325 1" to 100 10, and exchange it for the 25 yuan dual 4G traffic king package.