Huawei B970b - Using the Management Page; Management Page Overview; Viewing Configuration Information

You may now rename the SSID (the name displayed when the WiFi is broadcasted) and select whether to have it
visible by broadcast or not.
In the example below the SSID is named “gateway” and will be broadcasted.
Click on Next.
Now select the WLAN Security you may want to use and select Next.
This Manual: http://www.manuallib.com/file/2593485