If it’s VOIP, it isn’t REALLY “landline”, right? Even with battery backup, it’s still via computer and requires electricity, as I understand. My sister has VOIP through AT&T and during long power outages, it’s unusable if battery is dead.
I love our actual landline, plugged directly into the wall phone jack. If the power is out for days, the landline works.
Correct - VOIP stands for Voice Over Internet Protocol. Vast majority of so- called landlines work this way now. VOIP is a well-established and reliable phone service nowadays. You can even do “free”, as in not paying specifically for the phone service, with some apps. There are many ways to use VOIP; Ddo your research and choose the one that works for you.
Addendum to my last post: the AT&T service you have is still likely in some part VOIP; the service directly to you goes through a local switch then through the internet, your specific power outage does not always effect the phone service because AT&T supplies the power to your local phone lines.