I have my gmail account synced to my Android phone (version 5.1, Nexus 4) and I am currently in South Korea. I haven't switched over to a local phone account because I want to hang on to my existing cell phone number, so I've turned off all roaming data/calling and just use it as a pure wifi device. On my gmail account, I'm originally from Canada and it appears that I can make calls internationally using gmail's google voice caller. It shows all my contacts on my phone, but when I punch in the numbers, it shows "free" to make the call home to a Canadian or American landline/cellphone. Recently, however, I've been getting charges anywhere from a $1.00 - $2.50 Canadian for calls that show from my number TO my number and the location shows as zzSEOUL. I'm just wondering if these charges are coming from Google Voice's international calling rates? If it is the case, I might seek some alternate methods for calling home.