> Are you sure? There's a pretty good overlap these days in globally supported bands on at least a baseline level.
Most Chinese imported phones have really poor band support in the US. Lucky to get band 2 and band 5 at best.
> In some countries (the US included), providers restrict the ability of devices not capable of e.g. VoIP to connect on certain bands (as there is no circuit switched fallback available there, and there's an FCC mandate that calls, in particular 911 calls, have to work wherever data works), but that's usually not applied to inbound roaming guests.
US all circuit switched data is basically gone except for a few rural carriers and maybe a few pockets of 2G left on T-Mobile (was shut down on my local towers in past few weeks). Unsure of the 911 IMS carrier profile support on models not intended for US market.
Most Chinese imported phones have really poor band support in the US. Lucky to get band 2 and band 5 at best.
> In some countries (the US included), providers restrict the ability of devices not capable of e.g. VoIP to connect on certain bands (as there is no circuit switched fallback available there, and there's an FCC mandate that calls, in particular 911 calls, have to work wherever data works), but that's usually not applied to inbound roaming guests.
US all circuit switched data is basically gone except for a few rural carriers and maybe a few pockets of 2G left on T-Mobile (was shut down on my local towers in past few weeks). Unsure of the 911 IMS carrier profile support on models not intended for US market.