When broad band line is not available that time we use modem. We buy megabite in our sim and that sim install in our modem. After that we connect modem with our pc by usb cable. Then we can use internet
Read next
From @roy67
When broad band line is not available that time we use modem. We buy megabite in our sim and that sim install in our modem. After that we connect modem with our pc by usb cable. Then we can use internet