Due to the ongoing pandemic, it’s been a while since I last traveled abroad and had some time to have a look how roaming has evolved. But things are slowly getting better and I recently had the opportunity to go on a quick trip to Austria. And I’ve been very positively surprised that my favorite home network operator and my favorite roaming operator in Austria have switched-on VoLTE Roaming in the meantime!
I’ve been involved a bit in making VoLTE-Roaming work in practice in the past, but all my VoLTE-Roaming calls so far have been for testing purposes. But this time around, VoLTE-Roaming was switched-on for everybody. While I was not surprised that it worked well, and call establishment times are now just as quick as in my home network, I was a bit surprised to see that even a low end and quite old mobile device from 2017 has received a software update in the meantime to enable VoLTE-Roaming. I did not quite expect that.
I then tried to push this a bit to see if SR-VCC (Single Radio Voice Call Continuity) to hand-over ongoing voice calls to 2G or 3G when running out of LTE coverage was also activated. But I always had sufficient LTE coverage whenever I made a call, so I never had the chance to find out. Hm, some challenges just disappear over time.
It’s good to see VoLTE-Roaming in practice now! This is a major step forward, and a major piece in the puzzle to enable the industry to switch-off the remaining legacy radio layer (GSM in some countries, UMTS in others) at some point in the future. But it’s still a long way until then, as not all network operators have begun the transition.
One thought on “VoLTE Roaming in the Wild”
Can you please name the austrian operator?
Thanks and BR
Comments are closed.