Called once. Didn't answer. Called a second time - on Thanksgiving - and I decided to answer it. It was my Mother In Law calling on a calling card from Armenia. (Yes, I was happy to get the call!) :P
They were using a calling card and it doesn't charge my cell phone for an international call.
As it turns out......I had been sending e-mail to a woman on Match.com that, as I come to find later is from Russia. I e-mailed my Cell phone number and started getting calls from this 234 area code number. Does this ring any bells for anyone?