Why is this SMS check internet thing has started ?

Wlink New SMS Feature

Internet service provider (ISP) Worldlink has announced new feature for their users. New feature allows their customers to check the condition of internet (whether the internet is running or not) through SMS system.

If you have problem in internet connection then type “CHECK” or “CHECK your username” and send to 5465. This will help customers to know the condition of their internet as mentioned by Worldlink technologies private limited.