Doesn't seem to make a noticeable impact on most recent VZ phones, and as far as I'm aware VZ doesn't run VoLTE[0] yet.
[0] Anecdotally, I'm hoping that's right. I've been on (GSM/UMTS) T-Mobile for years and switched to VZ a few months ago; and I've noticed a marked drop in call quality & stability vs. every GSM phone I've owned.
[0] Anecdotally, I'm hoping that's right. I've been on (GSM/UMTS) T-Mobile for years and switched to VZ a few months ago; and I've noticed a marked drop in call quality & stability vs. every GSM phone I've owned.