Talk:United States/@comment-26415680-20151017153433/@comment-26674008-20151018042820

I have never used H2O personally but I have used AT&T's network in the past. I don't think most MVNOs allow tethering. I've never had any issue using funky VPN ports, SKYPE, Google Voice, or other VOIP. However AT&T always gave me a internal NAT ip.

From the US I always dial direct international, never had to dial any access number. But once you're in the US I advise getting a Google Voice number, it will give you a free permanent US phone number AND give you far and away the best international rates per minute. I've not used any other way to call international since I began Google Voice. You can make phone calls over 3G or WIFI by using the google hangouts app on your phone.