Originally Posted by
BigFlyer
Actually, once you are out of North America, pretty much everyone has Whatsapp - but I get you can't depend on that.
Also, although it is likely that Skype will spoof a Google Voice number for outgoing calls and SMS - I would test it before depending on it.
Yes, but it's the spread between pretty much everyone and everyone.
And yes, testing is essential. Calls to a US number show my GV #. Sending texts appears to work to non-US numbers, but I don't know how to confirm receipt or caller ID.