Roaming in Singapore (Skinny S21 Ultra) last week worked perfectly last week with all auto carrier settings. 

VoLTE Roaming working perfectly in the USA, nice change from last time I was here.

andyb:

 

Correct, I head up international roaming for Spark and am responsible for most things roaming.

 

We are currently live in 8 countries (I miscounted), with one or more carriers.

 

Australia
Denmark
Israel
Japan
Malaysia
South Korea
UK (goes live tomorrow)
USA

 

VoLTE is currently working perfectly on 3's network in the UK

@andyb - any update on the VoLTE list?

Right now I'm over in Indonesia again. Great data speeds on 4G+  but no VoLTE.

Interesting to see VoLTE work on 5G while roaming in Sydney en-route.

openmedia:

 

@andyb - any update on the VoLTE list?

 

Right now I'm over in Indonesia again. Great data speeds on 4G+  but no VoLTE.

 

Interesting to see VoLTE work on 5G while roaming in Sydney en-route.

 

Just a few additions :-)....

Indonesia carriers are engaged, should be live in a month or two.

Australia
Austria
Belgium
Brazil
China
Canada
Denmark
Estonia
Finland
Germany
Hong Kong
Hungary
Iceland
India
Ireland
Israel
Italy
Japan
Jersey
Latvia
Lithuania
Malaysia
Mauritius
Netherlands
Norway
Poland
Singapore
Slovakia
South Korea
Spain
Sweden
Switzerland
Romania
Taiwan
Thailand
UK
USA
Vietnam

openmedia:

@andyb - any update on the VoLTE list?

Right now I'm over in Indonesia again. Great data speeds on 4G+  but no VoLTE.

Interesting to see VoLTE work on 5G while roaming in Sydney en-route.

Linux:

openmedia:

 

@andyb - any update on the VoLTE list?

 

 

 

Right now I'm over in Indonesia again. Great data speeds on 4G+  but no VoLTE.

 

 

 

Interesting to see VoLTE work on 5G while roaming in Sydney en-route.

 

@openmedia VoLTE does not work on 5G voice on 5G is VoNR - NR = New Radio

Thanks @Linux - so 5G Data with 4G VoLTE voice.