Yeah I got used to them fairly quickly when visiting Europe recently. At first it was a bit annoying - kinda in the way when drinking and harder to twist back on properly. But after a few days you get the hang of it, and in some ways I prefer that style now.

On iOS, it’s called Live Voicemail under Settings -> Apps -> Phone.

View a transcript of an incoming voicemail in real time and answer the call before it ends.