Looks like the website offers an APK.

But not all SMS are text messages for the user.

carriers can reset access points via messages for example. Learned it the hard way when my 1st grader suddenly had internet...

I think you need better network equipment at home.

My provider had given me a remotely managed router. It was trivial to change the configuration and have it work normally.

	▲	jeroenhd 3 hours ago \| parent [-]
		Phones take APN configuration through special kinds of SMS messages. This isn't just about routers.