How to open Unicom's GPRS package by SMS?

GPRS function is the basic function of providing users with mobile Internet service. This function is turned on by default when you access the network. There is no charge for opening GPRS function, but using mobile phone to surf the Internet will generate GPRS traffic charges. If you mean that you need to open a GPRS traffic superposition package, you can generally order it according to the short message instructions provided by the local Unicom company or contact the local Unicom manual customer service to order it.