Tethering
Also called: hotspot
Sharing your phone's mobile data with a laptop or other device, either over WiFi, Bluetooth, or a cable.
It is the standard backup when fixed internet fails, and the main reason remote workers buy large data allowances. A laptop consumes data far faster than a phone, particularly with cloud sync and software updates running.
DITO Level-Up 999 gives 130GB for ₱999, which covers a working month of tethering. Check that your plan permits tethering — some promos restrict it.