Talk:Spain/@comment-188.126.80.6-20170413140934/@comment-24682153-20170413165843

Generally speed is quite good and on 4G/LTE in Europe and in the US. For the US they use AT&T. You need to have device compatibility to US frequencies. All roaming SIM cards have a higher latency = ping time as traffic is routed through servers in the home country. Normally, the rules of the home country apply: Vodafone Spain has opened Tethering and VoIP some years ago: https://foro.vodafone.es/t5/Tarjeta-prepago/Vodafone-ha-abierto-los-servicios-de-tethering-y-voip-a-los/td-p/558005. AFAIK they don't have special rules for roaming (unlike Three UK), but I used them very rarely for roaming as it has been very expensive (until May 2017) so far.