Well, given where you say you will be, I recommend my combination.
That would be an IOM SIM, which in my case, I opted for GeoSIM (
www.globalsimcard.co.uk ), as they are one of the few, if only, who have 30 second and 6 second billing on outgoing calls, which I find very helpfull when making quick calls.
In addition, I have subscribed to Enlinea callback. So far, I have had a 95+ % rate of success with it in the past couple of months, and I have been travelling back and forth between the US, and Europe and the Middle East the last couple of months.
That all being said, and as I mentioned in another thread, there's an additional thing you can do to reduce costs on both calls out, and also for almost free incoming calls to your US (or Canadian, it seems) mobile forwarded to your IOM SIM......
I have subscribed to Skype in, and received a US number. I forward my US phone to Skype, and then I forward the Skype to my GeoSIM IOM number. Skype only charges 2c a minute to IOM numbers. The only complaint is in the MIddle East (Dubai), there was a slight delay in the voice exchange from this forwarding, which made it slightly annoying, but, do-able. And, even with my grandfathered, cheaper T-Mobile International roaming, I would still have paid $1.48 a minute incoming, to Dubai. I liked the 2c a minute better -- I lived with the delay. However, I did not experience that delay in Europe.
In addition, you can set up one Enlinea account, not to call you back on the IOM number, but, you can have it call the US Skype in number (which forwards to yuor IOM number), then the call back to the US or Canada, I guess, all this is only about 10c a minute all added up (I think about 8c a minute USA to USA with Enlinea, plus the 2c a minute from Skype). The only downside is, all this forwarding and callback, can also produce some voice delay. I guess it comes down to how much you want to save vs. how easily you can deal with the voice delay (it is still very short, about as long as an echo).
I'll tell you, it is a real pleasure knowing people are calling me on my US mobile, and, wherever I am am only paying 2c a minute to receive the call. Makes it cheaper and easier for people to call me, then me to call them!
And, I have 2 Enlinea acocunts -- one, with the Skype forward thing, and one direct to my IOM number, and I pick which one I use based on whether it is an important business call or not, and want to experience some voice delay, or no voice delay. With an IOM number, Enlinea callback to USA is about 24c a minute.
Lastly, from a business point of view, the only downside for me, for the forwarding of my US number to my IOM number, is I can only have the generic British ladies voice for voicemail, and cannot personalize it.
Hope this helps a bit.
