This retro rotary phone may look like the one your grandma has, but it works as a tri band portable phone that will work in almost any country. Just insert your SIM card and you're good to go.
"This is the ever popular Portable Rotary Phone, now in Red! Phone comes fully assembled and tested. All you have to do is open the phone, insert your SIM card, and turn the unit on! The unit will utilize your phone number and account minutes. Phone dials out like normal through the rotary. Incoming calls ring the original, loud, gong style metal bells. Please note: As with all cellular phones, there is no dial tone." - Spark Fun