[EyeB]

for the same number, google voice may work... having it forward the call to your new sim number but you'll have to pay google voice to call that foreign number

or buy an app for voip calling through google voice using data connection. I think this may work without the extra fee on google voice since it doesn't forward call to another number.

I kind of prefer using the old garminfone for travelling. the gps unit works well and works offline from cell towers. means I can travel with gps and not have it pulling data charges. I know google maps have caching (can do this on garminfone too) but you have to find a wifi connection to get cache where you are, or do it beforehand. yes garminfone is slow/old but for calls/data it works fine still lol