Though dual SIM card cell phones have been around for a while, I've only seen them while traveling abroad and at trade show booths. The premise is simple and very attractive: with slots for two SIM cards, a single phone can have two phone numbers. You can receive and make calls on both lines and the SIM cards can even be from separate carriers.
It's a great option for anyone who wants to combine their work and personal phone and it's perfect for frequent international travelers who want a local number while retaining their U.S. number.
With such advantages, it's no surprise that a lot of CNET readers have asked how they can get such a phone. But outside of a handful of unlocked models, and a few crude adapters for regular handsets, dual SIM card phones remain relatively scarce in the United States. No U.S. carrier sells them and you can bet that no carrier would give up that kind of control.
But leave it to National Geographic to come up with another option. The organization has partnered with Cellular Abroad to offer the Duet D888. Made by Beyond E-Tech, the unlocked Duet accommodates two SIM cards: one for the Cellular Abroad intentional SIM card and one for another card of your choice. You could use your own SIM card for a GSM carrier like AT&T or T-Mobile or you could buy a prepaid card during your travels. … Read more