At my last job they replaced the POTS telephone system that had been around for 30 years with a new POE touchscreen phone. The backlight never dimmed and it occasionally showed an animation.

I wrote an angry ticket about it after about 2 days of having it, and 3 people from the IT department and 2 people from the company that sold us the phones showed up at my desk the next day, trying to figure out if there was something wrong with my phone, because "it shouldn't be that distracting."

The only person who understood why I was pissed was the mid-level tech support guy from the phone company.

I hated that phone so much I covered it in a sheet and only uncovered it if it was ringing.

Similarly, the ringtones were all super obnoxious. When everyone had the same ring you could just tune out the ones that weren't coming from right beside you. The new phones had a huge speaker on the back and the ringtones demanded attention like a klaxon. It was maddening because the phone of someone 3 cubes behind you could get a call and it would be louder for you than it would be for them.

Also, the touchscreen took 3 times longer to use than the old design did just because buttons are faster, you can use them without looking, and the UI was slow to begin with.

I love using new technology, and I wanted a new phone because the old one was huge and took up a ton of my desk, but that phone had the worst UX. I just wanted a phone that did the same thing my old phone could do, maybe with better audio quality. I didn't want a phone that demanded my attention to do things.