I still remember the awe I got each time I called someone and they also used a BlackBerry and had HD calling and how goddamn good and clear it sounded, like holy shit, I can't believe phone audio could sound this good.

I'm not sure if that was only a Canada thing or not, but you instantly could tell if someone else was on a BlackBerry just by how startling good it sounded. I haven't heard anything remotely good in years.