Probably the latter, but TBH the phone line almost never gets used...
Same here, but I have a couple of essential-use scenarios.
One is Mother Dear.
The other is that the mobile signal is so poor that voice calls often fail, so I have to ask people to call on the landline number.
I've had this issue with important calls recently, with the oncologist!
And if your ongoing deal continues to offer free line rental on ye olde
aes cyprium line, then there's not much to loose, is there?