How does China Unicom order 3G traffic packets (send short messages)?

Here's how to order 3g traffic packages:

Method 1: Send SMS command. Unicom 3g users to handle traffic packets of SMS instructions are as follows:

Second, participate in online activities to get traffic. For example, Baidu's Baidu wallet payment platform is now holding a penny shopping activity/? Invite_code=JEL7WT6W In this activity, there is domestic general traffic available to Unicom for 50m months (supporting 3g networks), which can be bought for only a penny. This activity is the official activity of Baidu.

Mode 3: Self-service handling of traffic superposition package in local Unicom business hall or local Unicom business hall website;