Using a Samsung phone with travel bolt on in USA

[YT]

I am heading to New York for 6 days next month ,have activated O2 travel but read that some Samsung phones will still not work, is this true?

[MI5 · Accepted solution]

@YT 

You may have to turn off 5g and use 4g but other than that all phones will work.

Data speeds are throttled though to 0.5mbps so you will find it slow.

Guide: Roaming MegaGuide 

[Enlli]

You will need to have VoLTE active to make calls as there is no 3G in the US and 2G is patchy

[YT]

Many thanks, data is not so much a concern as must be able to text and make calls back to UK

[YT]

Many thanks, as long as I can make calls and send texts back to UK I am happy enough, data not so much of a concern although would be good to have 

[YT]

I have actually checked my phone and there is no VoLTE option, phone does not have it.

[YT]

Update on this is that I spoke to Samsung who went on and on about an international SIM card and use it for 24 hours and then will be region unlocked , after 3 attempts at same question they eventually said basically if you have used your phone in country you bought it for at least one call for 20 mins it automatically region unlocks, my initial question was , I am with O2, current phone is a Samsung A32, have it it a few months, make many calls all in the UK for 20 mins or more, will the phone handset work in USA? The final answer was yes.

[Enlli]

It is most likely that VoLTE and the associate WiFi Calling have not been turned on at O2's end. It won't show on the phone till then

Message O2 on
Facebook (https://o2uk.co/O2CFB) 
Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you.